AoPS Academy Team

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Our Team

Our Founders

Richard Rusczyk

Art of Problem Solving was founded by Richard Rusczyk in 2003 to create interactive educational opportunities for avid math students. Richard is the author or a co-author of 7 AoPS textbooks and a past Director of the USA Mathematical Talent Search. He was a participant in National MATHCOUNTS, a three-time participant in the Math Olympiad Summer Program, and a USA Mathematical Olympiad winner (1989). He received the World Federation of National Mathematics Competitions Paul Erdös Award in 2014. He graduated from Princeton University in 1993, and worked as a bond trader for D.E. Shaw & Company for four years. AoPS marks Richard's return to his vocation - educating motivated students.

Glen Dawson

In 2014, Glen founded a learning center in Morrisville, North Carolina, that two years later became the first AoPS Academy campus. Glen served as the National Director of AoPS Academy until his retirement in 2019. He has experience as a college math professor, statistician, and expert SAS programmer. He has been a professional math tutor for many years, and specializes in training academically-advanced and high-performing math students. Glen is a graduate of Duke University and holds a graduate degree in statistics from Boston University.

David Patrick

Dave joined AoPS in 2004. He is the author or a co-author of 4 AoPS textbooks. Dave earned the sole perfect score on the American High School Mathematics Examination (AHSME) in 1988 and was a USA Mathematical Olympiad winner that year. He attended the Research Science Institute (RSI) in 1987, and the Math Olympiad Summer Program in 1988, where he first met fellow student Richard Rusczyk. He also finished in the top 10 on the Putnam exam in 1991. Dave graduated from Carnegie Mellon in 1992 with a BS in Mathematics/Computer Science and an MS in Mathematics. He went on to earn his Ph.D. in mathematics from MIT in 1997. He was an acting Assistant Professor at the University of Washington from 1997 to 2001. Dave is originally from Western New York and is an alumnus of the SUNY Buffalo Gifted Math Program.

Management Staff

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Dr. Yating Liu - Director

Dr. Yating Liu - Director

Yating Liu is the Director of AoPS Academy Virtual Campus. Before taking his current role, he served as the Business Director and the National Operations Director of AoPS Academy. Yating was the designer or significant contributor of seven AoPS Academy courses. He was a university professor and doctoral advisor before joining AoPS. Yating earned his BS in math from Peking University and his MS in math and PhD in math education from Ohio State. He was a one-time champion in China's national level math competition and a two-time champion in provincial level physics competitions by the age of fifteen—the same year that he received an entrance exam waiver for any university in the nation. In his free time, Yating enjoys tinkering and antique hunting.

Kyle Guillet - Math Director

Kyle Guillet - Math Director

Kyle is the Math Director of AoPS Academy Virtual Campus. In 2009, he earned dual BS degrees in Mathematics and Biology in the Dean's Scholars program at the University of Texas at Austin. After graduating, he joined Teach For America and taught 6th- and 8th-grade math in beautiful Navajo, New Mexico. Kyle joined AoPS full-time in 2012. He is a co-author of the Beast Academy textbooks and a former Regional Director of the AoPS Academy physical campuses. He enjoys dancing poorly, and as a matter of principle will only buy prime rib if the number of ribs is actually prime.

Damian Romney - Teaching Staff Manager

Damian Romney - Teaching Staff Manager

Damian is a Teaching Staff Manager of AoPS Academy Virtual Campus. He joined the AoPS Academy team in 2019 as a physical campus director. After graduating from Guilford College in 2011, he served in City Year Boston, an AmeriCorps program, from 2011-2013 as an in-school tutor and a physical service project manager. From 2013-2017, he taught 6th and 7th grade in Boston charter schools. He moved to the Atlanta area in 2017, continuing to teach for a year and then attending the University of Georgia to earn a master's degree in education in 2019. In his free time, Damian enjoys biking on nearby trails and woodworking.

Jessica Seekamp - Teaching Staff Manager

Jessica Seekamp - Teaching Staff Manager

Jessica is a Teaching Staff Manager for AoPS Academy Virtual Campus. She was previously a director at a physical Academy location. Jessica sees math as a record of human creativity and perseverance and loves sharing this view with her students. Jessica holds a BS in applied math from the University of Texas at Dallas and formerly served as a high school Math Department Chair, where she wrote curriculum and taught everything from middle school math to AP Calculus. As a teacher, she wants her students to think deeply as they discuss math, to be creative as they approach problems, and to appreciate the beauty of mathematics. Outside the classroom, you can find Jessica running ultra-marathons or climbing mountains in Colorado.

Brad Fischer - Operations Coordinator

Brad Fischer - Operations Coordinator

Before joining AoPS in 2020, Brad taught math and coached quizbowl at Keith Country Day School & wrote quizbowl questions for almost every tournament imaginable. His favorite lesson to teach is the Saint Petersburg Paradox, and a staggering percentage of his favorite questions in his old exams were lovingly borrowed from AoPS. Brad earned his BS in mathematics from Northern Illinois University in 2010. In his free time, he enjoys solving logic puzzles, listening to the Beatles, rooting for the Chicago Cubs, and teaching his son probability through card games.

Kathy Cordeiro - Customer Success Consultant

Kathy Cordeiro - Customer Success Consultant

Kathy joined AoPS in 2020 and has fifteen years of experience in mathematics education including coaching MATHCOUNTS teams, facilitating math circles, managing math competitions at UT Dallas, and working for a mathematics program. These experiences culminated in a book that Kathy co-authored in 2019, Awesome Math: Teaching Mathematics with Problem Based Learning for middle and high school teachers. Passionate about connecting ideas, people, and resources, Kathy has spent her career guiding generations of students and their families to get the most from their educational journeys. Both of Kathy’s sons are AoPS alums who have greatly benefited from the experience. For fun, Kathy loves strategy board games and spending time with her family. Kathy earned a BA in Communications and an MBA from the University of Rhode Island and Instructional Design Master Track Certification from the University of Illinois – Urbana Champaign.

Instructors

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Joel Anderson

Joel Anderson

Joel believes math is a beautiful universal language and he is enthusiastic about sharing his love for math with others. His favorite part of tutoring and teaching is helping his students develop strategies for creative problem solving. Outside of work and school, Joel loves playing guitar, designing video games, and kicking around a soccer ball when he has free time.

Joshua Arledge

Joshua Arledge

Joshua is a motivated and dynamic educator with a passion for international education. He has taught elementary and middle school school students both in the US and Mexico. After teaching 5th grade at an international school in Mexico City, he is now returning to the United States to teach elementary students at the Texas School for the Deaf. As a teacher, Joshua strives to create a sense of community in every class and aims to make his interactions with students engaging and meaningful. His passion for language arts stems from his own experience studying creative writing at a school for the arts during the summers as a high school student. When Joshua is not in the classroom, he is most likely travelling around the world with a notebook in hand.

Amber Barnett

Amber Barnett

Amber has always loved reading, writing, and helping others learn, so becoming an English teacher was an easy decision for her to make. In 2009, she earned her BA in secondary English education from Harding University. Upon graduation, she moved to Japan to teach English as a foreign language to students of all ages. Her time there taught her flexibility and patience. She was truly allowed to explore her creativity by coming up with fun, interactive language activities for her students. Since returning from Japan, Amber has been teaching advanced high school English courses. Amber wants to provide her students with the skills to succeed in her classes and in life, and she greatly enjoys assisting motivated students in achieving their goals. When she's not teaching or lesson planning, Amber loves international travel, singing in local choirs, and spending time with her cat.

Angelica Bell

Angelica Bell

Angelica is a certified high school math teacher and is currently a graduate student with JHU's Applied and Computational Math program. She happily stumbled upon the Art of Problem Solving when she began tutoring and teaching online in 2015. Since then, she has been coaching and training students for math competitions including MATHCOUNTS, Mu Alpha Theta, and different state competitions. She wasn't lucky enough to have anything like competition math in her small town growing up, but Angelica was excited to introduce this world to her students in middle school and high school. Aside from spending her free time doing math for fun, Angelica takes her three dogs on walks, babysits her niece, AJ, and goes on hikes as much as possible.

Noah Benjamin

Noah Benjamin

Passionate about differential equations and mathematical modeling since middle school, Noah earned his undergraduate degree with honors in mathematics and physics from Lewis and Clark College. In 2017, Noah became a published author in the peer-reviewed journal General Relativity and Gravitation. He has lectured at several large mathematical conferences on his results concerning black holes and high energy particle limits in the Einstein field equations. Noah continues to actively research and learn about black holes and differential geometry today with more work pending peer-review. After graduating, Noah worked in the classroom for two years as an AP physics teacher honing his instructional skills and fulfilling his passion to empower youth in their own mathematical journeys. In his spare time you will find Noah rock climbing, juggling fire, studying meditation, hiking and cooking meals (or at least trying!) for his family and friends.

Tun Bhothinard

Tun Bhothinard

Tun’s interest in math started back when he was chosen to be on his middle school’s MATHCOUNTS team. Though he loved the challenge of the competition, his math career took a backseat for several years as he focused on other activities such as tennis and keeping up with his other studies in high school. In college, math found its way back into his life as he majored in economics at Northwestern University. Shortly after graduating Tun found himself in front of a room of middle schoolers as a teacher. Everything came full circle when he became a MATHCOUNTS coach himself. Outside of teaching math, Tun enjoys rock climbing, cycling, hanging out with his dog and learning to play disc golf.

Mary Black

Mary Black

Like many dedicated teachers, Mary grew up in a family that valued education. She began her career as an instructor in Misawa, Japan, while attending University of Maryland, Asian Division. Upon returning to Texas, she enrolled at Sul Ross State University and earned her mathematics teaching certification. Developing mathematical talent has been a mainstay of her 27 year career. She was a member of the Texas Math and Science Coaches Association and coached younger students for mathematics competitions like number sense and calculator applications. She also began teaching online, working with children from other parts of the world, and understands how to effectively teach in this environment. In Mary’s opinion, there is nothing as rewarding as seeing students’ excitement and sense of pride when they finally “get” a difficult concept. In her free time, she enjoys spending time with her daughters, Meredith and Kourtney, listening to classic rock, reading mystery and thriller novels, and playing with her French bulldog, Darcey.

Tawnie Black

Tawnie Black

Tawnie has 18 years of experience in the fields of English education, language learning, educational program development, and online curriculum creation. She has an MA and a BA in English, as well as a California Cleared Secondary Teaching Credential in English. She loves all things “English” - writing, grammar and mechanics, language learning, rhetorical and linguistic analysis, and especially reading (ask her how many books she’s read). She is currently an online English college professor. Alongside education, she loves adventure traveling and is an avid motorcycle rider, so many of her travels are done on two wheels. When she’s not off adventuring, she can be found playing video games or spending time with her large family.

Carlos Bovell

Carlos Bovell

Carlos has been a public high school teacher for nearly twenty years. While earning his math degree at the College of New Jersey, he liked meeting during professors’ office hours to discuss intractable problems, which led them to ponder other unanswerable questions: What is mathematics? Can mathematical objects be known? Some faculty suggested that he pursue philosophy alongside math, a suggestion culminating in Toronto where he successfully defended a master’s thesis: “Rhetoric More Geometrico in Proclus’ Elements of Theology and Boethius’ De Hebdomadibus.” Carlos also completed an MS degree in mathematical computer science at Rutgers University-Camden. Among his publications are a book entitled, Ideas at the Intersection of Mathematics, Philosophy and Theology, and an article entitled, “The Mathematician Is Not Really the Pure Theoretician but Only the Ingenious Technician.”

John Burnette

John Burnette

John attended Duke University on a NROTC scholarship, earning a BA degree in theoretical mathematics. After a tour in the Navy as a Cryptologic Officer, John attended the Mid-Career Math/Science Program at Harvard’s Graduate School of Education, earning a MEd in mathematics education. Over the course of his career, John has taught thousands of secondary students all manner of mathematics, from basic Algebra up to Advanced Placement courses in Calculus, Statistics and Introductory Computer Science. He would agree that, for some students, math can be a difficult subject; but he is absolutely confident that all students can eventually succeed. When students have a strong foundation and enjoyment of math, it lasts a lifetime, and John is committed to guiding young mathematicians on their journeys. John lives in the rural town of Emporia, VA with his wife of 40 years. Both of their sons are grown and happily working as coders. He enjoys playing online chess, touring on his 1989 Honda Pacific Coast motorcycle, and collecting and restoring vintage bicycles.

Celai Busch

Celai Busch

Celai has dreamt about teaching since kindergarten and loves math. In the summer, she works with 6th graders as a counselor/teacher’s assistant at a math camp called BEAM. Celai loves to see students push through challenges and grow their academic ability. In her free time, she enjoys painting and playing video games.

Kara Campbell

Kara Campbell

Kara is a certified mathematics teacher with 11 years teaching experience. She has both BS and MS degrees in civil engineering from Rutgers University and Virginia Tech, respectively, and worked as a consulting engineer for 13 years prior to her career change. After starting her teaching career, she earned a MAT degree from New Jersey City University. While she always found it exciting to see a structure she helped design be built, she finds teaching math to young people more rewarding. Kara and her husband Chuck love spending free time with their teen son and tween daughter. About half their time with the kids is spent reading, watching movies, and going out to eat. The other half is spent getting under the kids’ skin by appropriating their frequent use of the words “bruh,” “noob,” and “boomer.”

Jake Chapman

Jake Chapman

Jake has always enjoyed math, puzzles, and brain games. He earned his BA in music and computer science from Columbia University, graduating Phi Beta Kappa and magna cum laude. As an educator, he has taught dozens of classes, from geometry to comedy improv. He has also tutored numerous students in calculus, algebra, geometry, chemistry, and music theory. He has striven to guide his students in seeing the big picture and understanding the “why” in the problem solving process, which was what drew him to the AoPS program. In addition to his teaching, Jake is a vibraphonist, pianist, and composer, performing and recording a wide variety of music.

Dr. Ralph Chikhany

Dr. Ralph Chikhany

While completing his bachelor’s degree in computer engineering in his home country, Lebanon, Ralph discovered an interest for pure mathematics beyond the standard requirements for an engineering degree. He then earned a Fulbright scholarship to pursue a master’s degree in mathematics in the USA. His newfound passion in the teaching and learning of mathematics prompted him to complete his PhD in mathematics with an emphasis on education in 2020. Over the past 8 years, he has taught students of different ages and abilities, ranging from gifted middle schoolers to advanced undergraduates at various institutions such as Johns Hopkins Center for Talented Youth and Washington State University. He is currently a professor at New York University. Outside of math, Ralph enjoys hiking, jogging, and is a true crime and pop culture fan.

Marisa Colwell

Marisa Colwell

Marisa’s interest in helping her friends understand mathematics is the reason she became a math teacher. Her love for teaching and for the subject led her to receive a dual bachelor’s degree in mathematics and mathematics education in 2009 from SUNY Fredonia. She continued her studies in education at SUNY Fredonia and also received a master’s degree in curriculum instruction in inclusive education. Marisa grew up in Western NY and later moved to Florida where she has been for the past 8 years. She has 7 years of in-classroom experience and 1 year of online teaching experience. She really enjoys getting to know her students’ interests and to help them grow a love and understanding for mathematics. Outside of teaching, you can find Mrs. Colwell exploring with her 2-year-old daughter, making jewelry, or relaxing on the beach.

Matthew D'Angelo

Matthew D'Angelo

As a math educator (and lifelong learner) Matthew has always enjoyed math for the challenge that it presents and the problem-solving power that it possesses. After graduating from the University of Massachusetts with a BS in math, he became a high school teacher specializing in calculus and statistics, where he pursued his passion for breaking complex concepts into their essential ingredients. Now a graduate student at the University of Maine, Matthew is working toward a master’s in mathematics, discovering new ways of modeling the world with equations and teaching calculus to undergraduates along the way. Outside of the classroom, Matthew can be seen hiking throughout the state of Maine, watching birds and drawing in his sketchbook.

Matt DeBarger

Matt DeBarger

Matt has loved math and science his whole life. This isn't surprising as he gets the math gene from both sides of his family tree. One of his paternal ancestors created the trigonometry table that was commonly reproduced in math textbooks through the 1950's and his grandfather used that same trigonometry to train airmen using bomber sights during WW2. That grandfather taught Matt how math is the engine driving things like economics, engineering and politics. They spent many evenings together using math skills to compete at card games. After leaving the stock market for a more rewarding career in education, Matt got his M.Ed. in mathematics instruction and curriculum and has been teaching for 15 years. Pursuing that more meaningful existence is the best decision he's ever made as he has a career where he loves going in (or logging in) to work every day. Matt also spends his time riding his bike, playing games, and watching movies with his dog, Paddington.

Debbie Downes

Debbie Downes

Debbie joined AoPS after twenty-two-years of classroom teaching. Most of that time was devoted to assisting fun, energetic middle-schoolers, but she also enjoyed a position as an adjunct math instructor at Lesley University. Prior to teaching, Deb was employed by the American Mathematical Society, where she worked as both a production editor and programmer. The first year the International Congress of Mathematicians was held in the United States, she was the editorial lead for the published proceedings. She received her BA in mathematics from Connecticut College, and a MEd in math education from Lesley University. Once upon a time she was valedictorian of her high school class, and that’s when she vowed never to turn a page in a math book without understanding everything on it. When she’s not trying to do that, she’s swimming, biking, sewing, or playing with her dog.

Dr. Brian Edwards

Dr. Brian Edwards

Brian loved participating in math competitions throughout middle school and high school. His accomplishments include qualifying for the MATHCOUNTS National Competition and USA Mathematical Olympiad; he also attended the Mathematical Olympiad Summer Program. As a Yale undergraduate, Brian founded a MATHCOUNTS Outreach program to provide math-enrichment opportunities for New Haven students from underserved backgrounds. After graduating from Yale, Brian worked at the MATHCOUNTS national office and then completed a Ph.D. at Northwestern University. Brian currently serves as the Director of the USA Mathematical Talent Search and is an AoPS Online instructor. When not teaching math, Brian can often be found at a baseball game. He has attended games at all 30 major league ballparks. He also loves to travel the world.

Rebecca Embar

Rebecca Embar

Rebecca’s childhood love for math competitions put her on the path to earning her BS in Mathematics from the University of California, Santa Barbara. She has been tutoring math for the past 5 years and in that time has taught every age group from kindergarten to college. The AoPS philosophy matched her own view of inspiring a passion for problem solving in each student through meaningful and challenging curriculum. She realized that the program and the exemplary students who are drawn to it were the perfect match for her mathematics and teaching background. She especially enjoys meeting students who share her love for math and sharing her knowledge with them. Outside of teaching, Rebecca enjoys going to the beach and hanging out with her cat.

Dr. Heather Finotti

Dr. Heather Finotti

Heather earned a PhD in math in 2006 from the University of Texas at Austin. She started tutoring math many years prior as a freshman undergraduate student and has now taught math professionally for more than 25 years. She has taught students of every age and academic level and enjoys finding ways to bring each student to see beauty in mathematics. After spending more than a decade in research at the boundary of mathematics and various areas of science (ecology, fluid flow, materials science, engineering, medicine, and more), she has lots of knowledge to draw on to help people understand why math is so very powerful and useful in the real world. She loves the opportunity to work with young learners because of their excitement and curiosity, as well as their creativity. In addition to mathematics she has many other interests like gardening, physics, reading, community building/social justice, health and nutrition, emotional aspects of learning, and is a mom to a budding math beast.

Beau Gilbert

Beau Gilbert

When Beau was in Kindergarten, his older brother attempted to teach him algebra. Mostly it didn’t stick, but it did spark the lifelong love of math that has led him here. In 2014, Beau earned his BS in pure mathematics from Tennessee Technological University. Since then, he has worked primarily as a science educator and entertainer - basing his efforts first from the Perot Museum of Nature & Science in Dallas, Texas and then from the Fernbank Museum of Natural History in Atlanta, Georgia. In that time he travelled both metro areas, teaching after school programs, summer camps, lab classes, and large-group assemblies for every age from pre-K to adulthood (working primarily with students from grades 2-5). While he loves teaching science, he’s excited to bring his mathematical roots back into the foreground with AoPS Academy. When he isn’t teaching, Beau loves writing, performing comedy, solving and creating puzzles, and playing tabletop games. He lives in Atlanta, GA with wife Jesse and small but loud baby Lorraine.

Laura Gilbert

Laura Gilbert

Laura Gilbert is interested in seeing how students think mathematically and in encouraging them to express their ideas to each other. She earned a BA in mathematics education from Brigham Young University and has 15+ years experience teaching mathematics to mostly middle school students. Laura co-taught a series of courses to excite elementary teachers about math. She enjoys the energy and curiosity of younger students. When she isn't thinking about interesting mathematical problems, Laura likes exploring the outdoors with her 5-year-old, playing board games, and gardening. She has two cats: one named Turtle and the other named Spoon.

Hannah Goodwillie

Hannah Goodwillie

Hannah grew up fascinated by the patterns and puzzles of math. In high school, she competed on her school's math team and in the AMC/AIME. After completing a BA in mathematics and music at Amherst College, she continued her study at Yale and earned a master's degree in choral conducting. Now she works as a teacher and a tutor, as well as a choir director and singer. All of these things are connected by her love of teaching, and she especially loves working with young students because it's so much fun to help them learn to experience math as a lifelong journey of exploration and discovery. Outside of work, she can often be found knitting, baking, solving crossword puzzles, and hanging out with her big friendly cat Mitts.

Emily Gottry

Emily Gottry

Emily is an applied mathematics and honors humanities major with a computer science minor at Azusa Pacific University, where she works as a research assistant and is a selected participant in the math and physics fellowship program. Emily’s passion for mathematics makes her excited to share it, so in the past five years, she has enjoyed tutoring, mentoring younger students, and volunteering with the non-profit STEM organization, Boundless Brilliance. Emily thoroughly enjoys solving challenging problems and engaging in collaborative discussion, and she looks forward to exploring the joy in mathematics with more students. Outside of attending college and teaching at AoPS Academy, you could find Emily in a game of ultimate frisbee, crocheting, and playing jazz clarinet.

Tanasia Gordon

Tanasia Gordon

Tanasia is currently a junior attending the University of Rochester and is studying mathematics to become a math teacher for middle school students. Originally from the South Bronx in NYC, Tanasia has always had a love for math and wants to show her students that math is not as scary as many make it seem. During the summer, she is a counselor at a math program called Bridge into Advanced Mathematics, BEAM, where she guides 6th Graders through advanced math problems and skills. Her favorite part about working with young learners is seeing them take the problem-solving skills that they develop over time and apply them in the real world. During her free time, Tanasia loves to cook and to try new things.

Lisa Harper

Lisa Harper

Lisa has been a teacher since a very young age when she used to gather cardboard boxes to create makeshift desks for the neighborhood friends who were her first students. She has spent 15 years working in public schools in Oklahoma serving in many roles and has taught kindergarten through third grade, middle school, and special education. She worked for 3 years at a homeschool cooperative teaching high school classes, and she has also spent 8 years traveling the nation as an educational and leadership consultant to both public and private institutions. Lisa finds joy and fulfillment in helping others learn and grow. When she is not enjoying her teaching jobs, she is at home in rural Oklahoma with her husband. They have several animals including horses, chickens, dogs, cats, and a small herd of cattle. They also keep a huge garden. Rather than watching television, they like to stay outside taking care of the farm.

Jennifer Hixson

Jennifer Hixson

As a child, Jennifer could always be found playing school with her sisters and solving math puzzles. Although she always knew she wanted to be an elementary teacher, she loved math so much that she ended up majoring in it as well, graduating summa cum laude from Susquehanna University with degrees in mathematics, elementary and early childhood education, and French. Jennifer also holds master’s degrees in education and library science. She taught third grade until her oldest daughter was born, then continued to tutor students of all ages in math. She loves guiding students to tackle challenging problems and develop a passion for both mathematics and learning. When she is not teaching, she enjoys spending time with her family, playing the piano, reading, gardening, and baking.

Dr. Natalie Hobson

Dr. Natalie Hobson

Dr. Natalie Hobson is currently an assistant professor of mathematics and statistics at Sonoma State University in California. She completed her undergraduate degree at the University of Washington and her graduate degrees at the University of Georgia. She holds a PhD in mathematics and master's degrees in mathematics and mathematics education. She loves working with students and working to make mathematics more accessible through outreach programs. Outside of math, Natalie has many interests, some of which include biking, yoga, swing dancing, gardening, bird watching, sewing, and cooking new food!

Christian Hokaj

Christian Hokaj

Christian has loved math as long as he can remember! He received his BS in Mathematics from the University of Notre Dame in 2018 and is currently pursuing his Ph.D., specializing in number theory, his favorite area of math. He’s been tutoring or teaching students at college for several years now, and he is passionate about showing young, gifted learners how to “think like a mathematician” early on so that they can build strong problem-solving skills applicable to almost any part of life. When not doing math, he enjoys learning about chemistry or physics, playing the piano (especially Beethoven), and making chocolatey desserts.

Erin Howard

Erin Howard

Erin’s passion for building confidence and critical thinking skills in her students led her to join the AoPS community. She currently lives in Corvallis, Oregon, designing and instructing online university-level math courses. Erin earned a BS in mathematics from Virginia Tech and an MS in statistics from Oregon State University. When Erin is not teaching, you can find her baking fresh bread or practicing yoga.

Jacob Jameson

Jacob Jameson

Jacob earned his bachelor's degree in economics and mathematics from the University of California, Santa Cruz in 2018. He moved to New Haven, CT in 2018 with Teach For America, and has since been teaching middle school mathematics and computer science. Jacob is passionate about expanding educational opportunities for his students and has experience running clubs for Black Girls Code, MATHCOUNTS, and Girls Who Code. His mathematical interests are primarily within applied mathematics and statistics. Jacob is now pursuing a Masters in Computational Analysis for Public Policy at the University of Chicago, where he can combine his interests in big data/statistical science and education policy reform. Outside of the classroom, Jacob is an ameture boxer and poker player; he also really enjoys playing the drums and reading non-fiction.

Heather Johnston

Heather Johnston

As a child, Heather would make up challenging math problems and solve them for fun. She began working as a math tutor when she was in middle school and has been teaching math and statistics ever since. Heather earned her BA in statistics from Mount Holyoke College, where she also worked as a teaching assistant. She also worked at a library in Guatemala, where she provided supplemental enrichment lessons to students of all ages in math, literacy, and English. In addition to teaching, Heather has worked as a freelance data analyst and data and evaluation specialist for a non-profit. Now, she is enrolled in a PhD program in statistics at the University of Michigan. Outside of school and work, Heather enjoys hiking, camping, and traveling.

Dr. Aaron Demby Jones

Dr. Aaron Demby Jones

Aaron joined AoPS in 2017. His PhD is in media arts and technology from the University of California, Santa Barbara, focusing on audiovisual representations of mathematics. Before that, he got his master’s degree in mathematics at the University of Rochester and a joint bachelor’s degree in mathematics and music at Brown University. Aaron has had the pleasure and privilege of teaching the next generation of math superstars for many years at the CTY and HCSSiM summer math programs. Outside of math, he enjoys designing experimental electronic music, playing the piano and percussion, chess, Xiangqi, Go, and badminton.

Milly Joyner

Milly Joyner

Milly Joyner’s favorite place continues to be the classroom! She enjoys collaborating and helping students discover their writing voice. She earned her BA in English from the University of Memphis and earned her M.Ed.in Teaching and Learning from the University of Nevada, Las Vegas. She served as English department chair and Dean of Students before becoming an assistant principal. She is a teacher consultant with the Southern Nevada Writing Project and has expertise in writing instruction and project based learning. An avid learner, she will return to UNLV this year to continue her studies, as well as serve as an adjunct teacher. When she is not reading for pleasure, she plays league tennis and enjoys traveling, cooking, and hiking with her family.

Noah Kahrs

Noah Kahrs

Noah earned his BA in mathematics at the University of Chicago and is now a PhD student in music theory at the Eastman School of Music. His research looks at some ways that mathematical principles can become audible in different types of music. He has taught both music and math for students from middle school through college and especially likes seeing students connect a concrete problem to an abstract principle. Outside of his research and teaching, he enjoys systematically exploring the cities he lives in, having visited every neighborhood of Chicago and walked every street within a mile of his current apartment.

Dr. David Kalb

Dr. David Kalb

David has a passion for teaching. He earned his BS in chemical engineering from Bucknell University with a minor in mathematics. He went on to pursue a PhD in chemical engineering at Penn State. After attaining candidacy, David reconsidered his career and made the happy switch to education. He had always been a teacher. At Bucknell and Penn State, David TA’d engineering classes, tutored other college students, taught karate, and coached both volleyball and an e-sport called League of Legends. David spent one year teaching algebra with Americorps, another year attaining his MS in education from the University of Pennsylvania, and is now a math and science teacher in Philadelphia. David still loves to game, be it with a volleyball or on the computer, and unwind with his two excellent kittens, Gracie and Rue.

Dr. Mits Kobayashi

Dr. Mits Kobayashi

In addition to teaching, Mits Kobayashi does mathematical research, primarily in number theory. After graduating from Caltech in chemistry, he went on to earn a PhD in mathematics at Dartmouth College. From there he has taught at Cal Poly Pomona and Dartmouth College. Helping young students discover the joy and beauty of mathematics has drawn him to offer his talent to the Art of Problem Solving community with the hopes of inspiring future mathematicians. In his spare time, he enjoys learning how to do new things: cooking exotic dishes, building furniture, and making music are some current faves!

Tara Kortman

Tara Kortman

Tara’s love of mathematics throughout high school prompted her to earn a BA from Rutgers University in theoretical mathematics. Wanting to instill her love of mathematics in future generations she completed a master’s degree in teaching. Tara started her teaching career in 1994 at Gateway Regional High School in Southern New Jersey teaching grades nine through twelve. For the last ten years, Tara has been focusing on teaching and coaching accelerated math students at William Allen Middle School, including coaching a MATHCOUNTS team. Her favorite part of teaching and coaching are the lightbulb moments when children persevere through challenging problems. When Tara is not in the classroom, she can be found hiking and kayaking with her family.

Amy Lee

Amy Lee

Amy earned her BS from TIME 2000 Teacher Academy at Queens College and earned her MA from the Teachers College at Columbia University and ever since, she has been dedicated to working with young thinkers! She currently teaches high school math, is the recipient of the 2013 Early Career and 2018 Master Teacher Math for America (MfA) Fellowship, and has coached middle school and high school math teams since 2014. Her love of mathematics coupled with her education experience drew her to the Art of Problem Solving community. Besides teaching and coaching math teams, she loves to cook, hike, and run!

Adam Leighton

Adam Leighton

Adam studied many subjects in college, but a few things were common to them all: they used logic or math. So, he earned his BS in math and MA in statistics and is working on his PhD in statistics (yup, he's a student too!) all from Arizona State University! A student his whole life, Adam discovered that he wanted to help others learn, so he became a tutor for students of all ages and later a college teacher. Although he's fascinated with and enjoys teaching all things math, he enjoys working with passionate and talented students on challenging, non-routine problems the most. Outside the classroom, Adam loves to play video games and board games, and eat tacos.

Katherine Lin

Katherine Lin

Math instructor Katherine got her start sharing her love of STEM with students more than a decade ago, as a volunteer mentor with DC Public Schools. Quickly recognizing the need for more teachers who could help students love math and science, she went on to earn a Masters of Secondary Education at Johns Hopkins University. Katherine has taught astronomy, chemistry, and physics, as well as test prep for math, science, reading, and writing on national and local exams. In her free time, she often finds herself wondering just how many Oreos, Sour Patch Kids, and Airheads she has shared with her students on assessment days.

William Lin

William Lin

William earned his bachelor's degree in mathematics and economics from the University of California, Los Angeles in 2005 and his master's degree in education from Loyola Marymount University in 2007. He has been working in education as a teacher and administrator at the middle and high school level for 15 years. One of William's greatest joys from teaching is witnessing his students develop a growth mindset and genuine love for mathematical problem solving. His former students have competed at the highest levels at the MathCounts and American Math Competition 8 (AMC 8) competitions. Outside of teaching, William enjoys reading books, playing tennis, and hiking local trails with his family.

Hui Su Loo

Hui Su Loo

Su has loved math ever since she was little and first experienced the joy of solving a problem. She holds a Bachelor’s degree in electrical engineering from Singapore’s Nanyang Technological University and a Master’s in math education from Western Governors University in Utah. Su has spent the last five years teaching middle and high school math in both public and private schools in Baltimore and Washington, DC. She especially likes discussing problem-solving strategies with her students. In her spare time, Su loves painting, trying out new recipes, and taking long walks in the park.

Dr. Francie Longshore

Dr. Francie Longshore

Francie has worked as a professional teacher and tutor for over twenty years and has taught everything from philosophy to poetry, from literature to the Latin language, and from pre-algebra to how to construct an awesome Lego race car. She has a BA in Liberal Arts from St. John’s College in Annapolis, MD, and a PhD in philosophy from the Catholic University of Leuven in Leuven, Belgium. She loves learning with kids, sparking intellectual curiosity, and playing Scrabble and other word games. Francie currently lives about twenty miles north of Portland, Oregon with her husband, two kids (aged six and eight), and two cats (aged six and three). In the summer she grows tomatoes and makes salsa.

Mark Marino

Mark Marino

Mark is currently a professor of mathematics & computer science. His extensive 17+ year career includes working with diverse student populations at the middle school, high school, community college, college and university levels. Each experience provides him unique and challenging opportunities and allows him as an educator to demonstrate his dedication, creativity, and enthusiasm for mathematics and students. He has helped thousands of students achieve exemplary results in online, hybrid and seated mathematics courses. Mark has received numerous teaching and scholarly awards including the prestigious State University of New York Chancellor’s Award for Excellence in Teaching and most recently, the University at Buffalo Milton Plesur Award for Excellence in Teaching. Outside of math, Mark enjoys traveling the world with his wife, Andrea, and spending time with their dog, Diego.

Missy Matteis

Missy Matteis

Missy lives in Somerville, Massachusetts and teaches first grade. She loves reading, teaching kids to read, and talking with kids about any type of literature. She has her master's degree in language and literacy from Harvard Graduate School of Education and her undergraduate degree in education from Skidmore College. She has taught fourth grade and first grade in the Boston area. Her favorite thing about teaching is writing stories with her students and helping them be creative! She also loves to play soccer with her students at recess time. While she isn't teaching, she loves to bake and cook. She also loves to hike, bike, and spend time outside!

Dr. Michael Menke

Dr. Michael Menke

Michael graduated from UCLA with a PhD in mathematics in 2018. After graduating, he worked for the Math Academy which is an accelerated math program for middle and high schoolers in Pasadena, California. Currently, he teaches at Rutgers University. He has two wonderful cats Loki (which stands for little orange kitty) and Miso. They like to help out with work sometimes.

Sarah Mill

Sarah Mill

Sarah was born and raised in New England. While she considers New Hampshire’s seacoast home, she is grateful to have spent the past year traveling across the country, exploring the diverse landscapes it has to offer. Having earned both a BA in English teaching and a MAT from the University of New Hampshire, Sarah’s education career began with four years teaching secondary English in a traditional classroom setting before moving into the virtual space. Her passion for teaching is fueled by her creative spirit and desire to help others find success. When she’s not working with students, Sarah helps small businesses create stellar digital content. In her free time, Sarah can be found hiking a mountain, trying out new recipes, or reading a book on the beach!

Daniel Minsky

Daniel Minsky

Daniel Minsky is an adjunct math professor at San Diego Mesa College and has also taught courses at several area high schools. He earned his BA in math at Columbia University and is currently working on his PhD in math at UC San Diego, where he researches quantum computing. In high school, he got to attend the PROMYS math research program for two summers; in college, he was a high scorer on his school’s Putnam team. Problem solving has been a constant in Daniel’s career and he looks forward to sharing his joy of the topic with tomorrow’s thinkers! Daniel is also fluent in Russian, and enjoys playing Scrabble and table tennis.

Corinne Mitchell

Corinne Mitchell

Corinne has a deep appreciation for the beauty of numbers. She earned her BS in mathematical sciences from McNeese State University, graduating magna cum laude from her university's Honors College. As an undergraduate, Corinne spent her summers working as a counselor for MathPath, a program for mathematically gifted middle-schoolers, where she gained hands-on experience and fell in love with using games and puzzles to challenge young learners. She has also tutored numerous students in trigonometry, calculus, algebra, and geometry. In addition to teaching, Corinne is a painter, poet, and movie enthusiast. She spends her free time reading science fiction and identifying plant species on hikes with her dog, Piper.

Meghan Nauss

Meghan Nauss

Meghan was inspired to be a teacher from a young age by her own dedicated, motivating, and empathetic elementary school teachers. Meghan's love of learning and passion for teaching led her to earn a BS in human development from the University of California, Davis, followed by her CA multiple subject teaching credential and MEd in curriculum and instruction from the University of San Diego. As a full-time elementary school teacher for the past 4 years, Meghan fosters a welcoming, rigorous, and supportive environment for each of her learners. She encourages her students to adopt a growth mindset, often reminding them that “we learn from our mistakes” and “we can do hard things!” Meghan takes great joy in the “aha!” moments of her students, especially those resulting from deep thought, problem-solving, and teamwork. She is excited to witness these moments with learners at the AoPS Academy! Outside of the classroom, Meghan also loves watching her 1 year old daughter, Deirdre, have these “aha!” moments through her own experiences and exploration. When Meghan isn’t teaching or chasing around her feisty toddler, she loves board games, camping, and adventuring through nature with her family!

Sarayu Pai

Sarayu Pai

Sarayu's interests include mechanical engineering and economics. In college, she enjoyed many math classes, including statistical probability, vector calculus, and ordinary differential equations. She also loves teaching, but especially in math, which is definitely one of the most, if not the most, beautiful subjects! Sarayu is passionate about empowering students to further develop a love for learning and build their confidence in conquering tricky concepts. Bringing significant mentoring and teaching experience, she is looking forward to teaching more students. Outside of mathematics, Sarayu is also immensely interested in sustainability and has completed research projects on the Big Island of Hawai'i and in the Galápagos.

Kyla Patterson

Kyla Patterson

Kyla has a B.A. in Writing, Rhetoric, and Discourse from DePaul University and a M.Phil in Linguistics from Trinity College Dublin. While studying in Chicago she began tutoring English as a second language and realized teaching the effective use of language was her passion. She was then awarded a Fulbright grant to teach English in the Czech Republic. After spending a school year teaching (and learning from) her Czech students, she moved to Ireland to study for her master’s. There she began working in an international English school, where she ran the junior activity programs for international students looking to improve their English language skills. When she is not trying to help students crack the mysteries of English, she can be found hiking in the Rocky Mountains.

Emily Peters

Emily Peters

Emily grew up in Virginia, the oldest of five children. After graduating from the University of Virginia with her bachelor’s degree in psychology, she decided she wanted to teach and joined the Teach for America program where she taught 8th grade language arts in Houston, Texas for five years. In that time, she earned her Master’s in Teaching from Relay Graduate School of Education, with a focus on secondary education and literacy. Following a move to the midwest, Emily has been teaching 3rd grade in Troy, Illinois, for 3 years. She loves reading books of all kinds and working with students to help them love reading and writing. Outside of teaching, Emily loves being active outside, especially with her dog, Fred. She loves running, hiking, and doing yoga. Emily is also a certified yoga teacher and teaches yoga both at school (to teachers and students) and at local parks.

Tristan Pollner

Tristan Pollner

Tristan is an incoming Ph.D. student at Stanford University, studying theoretical computer science. He recently graduated summa cum laude from Princeton University, majoring in mathematics with a minor in computer science. Throughout high school and college, he has greatly enjoyed math competitions, earning Honorable Mentions on the USAJMO and Putnam, and scoring 14 on the AIME. Since high school he has enjoyed teaching mathematics and problem-solving to students of all ages, and has worked on curriculum development as an intern at AoPS. In his free time he enjoys climbing, playing the piano, and keeping up with his favorite TV shows.

Brooks Rubin

Brooks Rubin

Brooks is from Baltimore, MD and is an alum of the Baltimore Algebra Project. He's currently a senior at Columbia University studying education and ethnic studies and hoping to be a middle school math teacher after graduation. Used to helping his younger sister and cousins with schoolwork, Brooks got his first official tutoring opportunity in 7th grade as a peer homework helper and hasn't stopped since. He's found joy in math as long as he can remember and loves to share that experience of growth and excitement as well as help other people recognize their power to solve problems they didn't think possible. In addition to working with AoPS, Brooks is a counselor/TA for Bridge to Enter Advanced Mathematics as well as a co-founder and co-facilitator of @knowyourpower.nyc. When he's not working he loves to play soccer and spend time with friends and family more than anything.

Daniel Ruch

Daniel Ruch

Daniel has been a math teacher since the age of eight, when he taught his younger brother to multiply by making equal piles of M&M’s. After earning a BA from the University of Pittsburgh, he gained teaching experience through AmeriCorps, then taught elementary school math for 11 years in Allentown, PA and New Orleans, LA, developing a passion for helping young students discover the simple patterns and rules that will help them learn more complex mathematics. Also a lifelong musician, Daniel performs regularly in New Orleans and can be found at home solving puzzles or biking around the city in search of music when he’s not performing or teaching.

Carrie Sanidad

Carrie Sanidad

Carrie Sanidad earned bachelor’s degrees in mathematics and secondary math education from the University of Maryland where she was in the University Honors Program and also played volleyball for their varsity team. She started her teaching career as a high school math and computer science teacher in the Montgomery County Public School System. After taking time off to raise her family of four children, Mrs. Carrie returned to the classroom teaching Montessori middle school math and science. Although she likes all math and science disciplines, her favorite is Geometry. She has served as a middle school and high school head volleyball coach and an assistant swim coach for all ages. In her spare time, she likes to exercise, sew, and read.

Angela Schneider

Angela Schneider

Angela is an experienced educator with over 20 years in elementary and middle school classrooms in California and Italy. Math has always been her passion, both as a student and as a teacher! She finds joy in extending childrens' understanding and pushing them further than they ever thought possible. When not working with students, you will find Angela traveling, hiking, reading, skydiving, spending time with her dog, and learning to ski.

Doug Squire

Doug Squire

Doug is from Charleston, West Virginia. He learned to love math in elementary school and competed in his state math competition every year from elementary school through high school. He continued his study of math in college and grad school by earning two math degrees. He taught middle school math and debate in Atlanta, Georgia and has been teaching math at West Virginia University since 2006, where he won the university’s highest teaching award in 2010. Doug works with younger students every year coaching West Virginia’s national math team and teaching at the state’s honors academy. When he is not teaching math, he loves to see his friends and family, travel, ski, and cook.

Josephine Stringer

Josephine Stringer

Josephine is a self-proclaimed bibliophile. After completing a bachelor's degree in communication from Dallas Baptist University, she pursued her true passion by obtaining a master's degree in library and information sciences from Texas Woman's University. Josephine has taught language arts, humanities, and social science classes to various grade levels from elementary to high school. Having spent the last 15 years in academic libraries, she enjoys reading across genres and has a hard time picking a favorite! When she is not reading, she loves cooking for her family and playing one of the 75+ board games that her family owns.

Sam Strozzo

Sam Strozzo

Sam, an international school and university teacher, has taught theater, English, and philosophy in Germany, Thailand, and South Korea. Energetic and having a flair for the dramatic (his students often call him “hyper”), he loves nothing more than having a bit of fun when teaching and learning; there’s no such thing as a boring class if you’re willing to be a bit silly! He works for International Baccalaureate (an international school organization) as a teacher and teacher trainer, and is currently almost finished with his Ph.D in Media and Communications through the University of Leicester (UK)—woo! When he isn’t teaching or working on his English learning app, you’ll find him travelling the world and/or strolling on the beach, often with some 80s tunes playing and Thai food in hand.

Tina Tai

Tina Tai

Tina has been teaching and tutoring elementary and middle school kids for over 20 years and especially loves working with younger students. Helping students find their mathematical potential drives her approach; she believes that learning should never be boring and loves seeing her students discussing, analyzing, and sometimes laughing their way through lessons. Tina enjoys a good math mystery almost as much as a literary one, and in her class, you’re as likely to study a classic work of literature as you are to hone the life story of your very own number two pencil. When Tina’s not teaching, you can find her enjoying the California sun with her husband, two dogs, and three children.

Christina Touchstone

Christina Touchstone

Christina earned a bachelor’s degree in English from Loyola Marymount University in 2000 and her master’s degree in English from California State University, Bakersfield in 2014. Christina started her teaching career in 2001. She has taught grades 7-12 and at the college level. What Christina enjoys most about working with young learners is seeing them grow and succeed. She is dedicated to helping her students triumph! Outside of teaching at AoPS Academy, Christina loves reading rhetorical theory, binge watching historical drama and relishing Korean BBQ.

Yale Wang

Yale Wang

Ye (Yale) Wang was the president of Infinity Math Club in high school where he earned an Excellence in Mathematics award as a senior. He is currently continuing his study of mathematics at Stanford University. He started his teaching career also in high school, during which he took on a part-time after-school instructor role and volunteered with School on Wheels to tutor children living in shelters and group homes facing adversity. Having worked with 4th and 5th graders most of the time, his favorite part about these experiences is having the opportunity to introduce cool math that his students have never seen before. Outside of teaching, Yale enjoys reading, running, watching movies, as well as learning German as a foreign language.

Jaclyn Wardrip Smith

Jaclyn Wardrip Smith

Jaclyn is passionate about helping others find the beauty and purpose behind math and science. While an undergraduate at UC Santa Cruz she began tutoring small groups of other undergraduates and realized her desire to help others in teaching. In 2014, she graduated with a BS in biology and joined Americorps City Year to gain more experience in schools. Since then, she has been an educator and mentor in California teaching math and science to students from elementary to high school. In her high school position she was the math department chair and the lead teacher for the art/anime club. Jaclyn aims to encourage and guide students to gain curiosity and a love for math and science. In her free time Jaclyn enjoys to do puzzles, hang out with her two cats, paint, cook and explore nature through hiking.

Dr. Cassia Winterhaven

Dr. Cassia Winterhaven

Cassia Winterhaven earned her BA in mathematics at Agnes Scott College and her PhD in mathematics from Emory University. She loves best how mathematics lets us see connections and talk about patterns in many different contexts. Cassia has been tutoring or teaching since graduating college and has worked with all different age groups. She especially enjoys working with younger students because of their enthusiasm and willingness to try different approaches to a problem.Outside of teaching at AoPS Academy, Cassia stays busy sewing, playing computer games, and writing and running Dungeons & Dragons campaigns for her friends.

Isabella Zeolla

Isabella Zeolla

Isabella is like any other English language arts teacher: obsessed with words and the power they hold. She's previously taught high school students in Connecticut and Bangkok, Thailand, but enjoys spreading the word to children of all ages. As a Fairfield University graduate (BA and MA), she lives a life surrounded by the excitement of liberal arts. When she's not reading or writing, she's lesson planning and binge-watching all the American TV shows she missed while she was in Thailand. A class with her consists of elevated learning activities, laughs, and debates about whether or not "the book was better."

"AoPS Academy is truly a wonderful place to learn advanced concepts in math. The academy has highly qualified instructors who not only help kids learn rigorous math concepts in great depth, but also inspire them to achieve the lofty heights that they are capable of. The instructors are truly an inspiration for my children due to their thoughtful mentoring. Thank you for everything you do for our kids."
-Praveen T.
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