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Our Teachers
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Adeline Kim

Teacher (she/her)

Adeline is a junior at Harvard College, studying Cognitive Neuroscience and Evolutionary Psychology & Linguistics. Ever since MathCounts sparked an interest in her, she has enjoyed teaching peers and younger students about finding fun in the complexities of math! Coming from a transient and everchanging military community in South Korea, Adeline particularly resonates with CMC's focus on building strong mentor-student relationships and instilling confidence. In her free time, she loves to bake, bullet journal, and play tennis! (At some point) she could recite 100 digits of pi...

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Aggy Yassen

Teacher (she/her)

Aggy is a second year student at Harvard College, studying integrated biology and anthropology. Growing up, she always loved learning about math and found herself helping her classmates and siblings in their math classes. In addition to CMC, she is also an SAT tutor. Aggy particularly loves CMC's creative approach to helping young student understand complex topics and theories - including some college-level ones. When she's not helping with CMC, Aggy enjoys reading, swimming, and spending time with loved ones. She's also a really good ping pong player!

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Alena Dolgireva

Teacher (she/her)

Alena earned her degree in Education in Russia and continued studying the differences between Russian and American math programs. She's been teaching math for more than 7 years, including during CMC's 2023 summer camp. Alena regularly runs lectures for schoolchildren about women in STEM, and her favorite teaching moments are when students start to find math interesting, beautiful, and fun. As a passionate traveler, she's constantly exploring new countries and cultures, always on the lookout for fascinating mathematical insights from around the world.

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Alper Tezcan

Teacher (he/him)

Alper freshly started his PhD at École Polytechnique, Paris, and recently finished his undergraduate degree in physics and math. He's studying high-energy physics: the cool name for particles. Before CMC, Alper did competitive physics and taught high school students, which sparked his passion for teaching. At CMC, he enjoys answering creative, puzzling, yet fundamental questions from kids. Besides academics, Alper likes rowing, playing guitar, and biking. He makes "awesome" jokes to Luke from CMC and teaches him a bit of Turkish every week :D

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Cody Uman

Teacher (they/them)

Cody is an undergraduate student at Yale University, studying math and education studies. They fell in love with math in 6th grade, when they had an amazing teacher who showed them how much fun math could be. They joined the Cambridge Math Circle to have the same effect on other students. In their free time, Cody enjoys modular origami, ice skating, musical theater, and playing trombone and tuba.

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Constance Kraay

Teacher (she/her)

Constance is a PhD student studying biophysics at Harvard University. She has a bachelor's and master's degree in chemistry from Harvard and enjoys teaching both math and music in a variety of contexts... especially with CMC!

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Crisel Suarez

Teacher (she/her)

Crisel is a PhD candidate studying physics at Vanderbilt University and a Smithsonian Astrophysical Observatory (SAO) Predoctoral Fellow. She's currently studying the physics of solar flares. Crisel earned a Master of Science in physics from Fisk University in 2019 and a Bachelor of Science in mathematics (major) and physics (minor) from St. Edward's University in Austin, TX, in 2017. Crisel is originally from Mexico City, Mexico. When not doing research, she likes solving puzzles and spending time with her dogs and cat.


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Eli Gold

Teacher (he/him)

Eli is a freshman at Princeton University, planning to study math. During high school, Eli studied numerous advanced mathematical topics at the University of Connecticut and at the Canada/USA Mathcamp, and also created his own high school math club and taught online for LIVE, by Po-Shen Loh. Eli is equally passionate for music, and loves to combine math and music in his hobby of change-ringing, the centuries-old English practice of ringing mathematical permutations of tuned bells. For those of you near Boston, there are change-ringing bells in Old North Church, one of less than 50 change-ringing towers in all of North America, if you want to learn to ring tower bells. Sadly, Eli has only ever rung on handbells. Despite the deplorable state of Eli's towerless change-ringing, Eli has managed to overcome his grief, and is excited to join the Cambridge Math Circle to continue sharing the joy of math with as many people as he can.

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Emily Peng

Teacher (she/her)

Emily is a freshman at Harvard College, planning to study math and chemistry. She began teaching as an unofficial peer tutor in elementary, and through that, realized how rewarding it was to help others find joy in math. Outside of the classroom, Emily loves embroidery, singing, dabbling in linguistics, playing Minecraft, and reading.

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Fatima Reyes

Program Manager & Teacher (she/her)

Fatima graduated from Harvard in 2024 with a degree in History and a minor in Computer Science. She has always found math fun, but CMC helped revive that love. Now she enjoys working with students and helping behind the scenes at CMC. When she’s not teaching or editing a spreadsheet, Fatima is probably gaming, playing music, or baking.

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Francisco Verón Ferreira

Teacher (he/him)

Francisco graduated from Swarthmore College with a B.S. in Engineering and B.A. in Mathematics. Originally from Paraguay, he fell in love with math and science through competitions, participating in math, physics, chemistry, and astronomy olympiads, eventually representing his country at the International Mathematical Olympiad (IMO). Programs such as Canada/USA Mathcamp and the Modern Mathematics International Summer School (MoMISS) also provided support and encouragement to help him decide on pursuing further mathematical education. It is in the spirit of such programs that he wishes to continue the tradition at CMC. In his free time, he enjoys reading/collecting books, playing 2D platformers, and watching anime.

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Grace Zhou

Teacher (she/her)

Grace is a senior at Harvard studying physics and computer science. She grew up doing competition math through MATHCOUNTS and AIME/USAMO, but has always enjoyed finding math in less expected places too. A longtime musician, she explored various structured approaches to music through her Davidson Fellowship project, and she still loves using math as a lens for understanding everything from music to the natural world. More recently, she’s spent her summers in quantitative trading, where she gets to think about probability, puzzles, and decision-making for a living. She’s excited about CMC’s playful approach to math and continuing to learn about new ways to solve problems creatively with everyone at CMC. In her spare time, Grace enjoys running, ranking restaurants on Beli, and playing board games.

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Hugh Koschwanez

Teacher (they/them)

Hugh is a student at University of Massachusetts Amherst majoring in Math and Linguistics with a minor in Latin. Math has been Hugh's passion for as long as they can remember; they grew up reading math books such as The Number Devil and Proofs Without Words just for fun. When Hugh started tutoring other students at CRLS, they discovered how much they enjoy helping others work through challenging math. In their free time, Hugh enjoys board games and tabletop roleplaying games, playing the trumpet and guitar, and tackling the daily New York Times crossword puzzle. Hugh is excited to connect with kids at CMC who share their passion for math.

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Jacob Paltrowitz

Teacher (he/him)

Jacob is a fourth year student at Harvard College studying Math. He enjoys thinking about counting problems and logic puzzles. During high school, he participated in a variety of math competitions and made many friends in the process. Outside of math, he enjoys cooking (and eating), watching baseball, and learning to juggle.

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Kadyn Allen

Teacher (she/her)

Kadyn is a junior at Harvard College studying Applied Mathematics and Economics, with additional coursework in psychology. She has always enjoyed math and has been tutoring the subject since high school. In addition to CMC, Kadyn tutors students in college counseling as well as SAT and ACT preparation. She likes to attribute her interest in problem-solving to her childhood love of the mystery-solving show Scooby-Doo. Kadyn especially enjoys helping students build confidence with challenging concepts and discover new ways of approaching problems. Outside of academics and tutoring, she enjoys line dancing, baking, and going to concerts.

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Kalina Jasińska

Teacher (she/her)

Kalina graduated with a BA in Computer Science from the University of Cambridge in 2023. She's been working summers at Canada/USA Mathcamp for the past 5 years and recently joined CMC. She loves teaching math to  teenagers and kids and seeing them get excited about it. In her free time, she enjoys baking, cooking, bouldering, and drinking hot chocolate. She once managed to go to school as her identical twin sister for a full day without anyone ever realizing.

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Ketevan Gogishvili

Teacher (she/her)

Keti is currently completing her 3rd and final year of bachelor degree in École Polytechnique, studying CS and Mathematics. She became passionate about teaching kids math after her time as a counselor at Canada/USA Mathcamp, where she and 6 students had the best time solving probability puzzles and playing market making games. Keti enjoys doing a bit of everything - playing on guitar, going to concerts, climbing, finding non-rat animals in Paris, making ice cream, sometimes making horrible ice cream, eating horrible ice cream.

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Laura Pierson

Teacher (she/her)

Laura is a math PhD student at Harvard, and she also holds a bachelor's in math and master's in teaching from Harvard and a master's in math from the University of Waterloo in Canada. In addition to CMC, she teaches for Art of Problem Solving, the Girls' Angle Math Club, and the Stanford Math Circle, and she has taught in the past for the Berkeley and Chicago Math Circles and the Bridge to Enter Advanced Math summer camp. She also tutors students 1-on-1 in math. She thinks math is a beautiful and exciting subject and loves sharing her passion with eager students! When not doing math, she does lots of social dancing and also enjoys drawing and painting.

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Liliana Jasińska

Teacher (she/her)

Liliana holds a bachelor’s degree in Global Business, Finance, and Governance from the Warsaw School of Economics. She has experience tutoring students for the SAT, where she developed a love for helping others tackle challenging concepts. Liliana is particularly excited about CMC's creative approach to making math engaging and accessible for kids in diverse learning environments. Outside of teaching, she enjoys cooking, practicing yoga, and surfing. Liliana is also a certified sommelier, but didn´t pursue that career path.

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Luke Jackson

Teacher (he/him)

Luke graduated from Harvard College in 2024 with a degree in math. He enjoys coming across efficient ways to prove why mathematical ideas are true and talking about them with others. He's also interested in neuroscience and philosophy, but math became his favorite subject once he entered college because he was introduced to proofs. Aside from math, he enjoys annihilating his friends in Mario Kart, telling bad jokes, and eating cookies.

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Luke Zhu

Teacher (he/him)

Luke is a junior at Harvard College studying mathematics and physics. He's passionate about math education and fostering curiosity and discovery; he came to CMC because of the organization's innovative approach to math enrichment. Outside of work, Luke enjoys playing and watching competitive video games, as well as cycling. His hometown is Christchurch, New Zealand.

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Luna Avolio

Teacher (she/her)

Luna is a first-year student at MIT, planning to major in math. She's always loved learning about math, especially recreational mathematics, and more recently, she's taken an interest in showing that to others. Luna thinks that giving young people the opportunity to see math beyond the rote calculations in K-12 curriculum is the best way to get them interested in what can be a really lovely subject, and hopes that CMC can bring those chances to more young learners. In her spare time, Luna likes to learn about linguistics, constitutional law, solving puzzles, and playing video games (quickly). She also speaks toki pona, a constructed language with just 120 words!

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Mahbuba Afreen

Teacher (she/her)

Mahbuba is a senior at Harvard College studying Neuroscience and the History of Science. Growing up, she has always enjoyed learning and teaching math to others, whether in the classroom or at home to her younger brother and neighborhood kids. CMC has reignited her passion for learning, mentoring others, and spreading the joy of solving a difficult problem. Mahbuba is excited to revisit small-group interactive activities and games like Set! through CMC's approach to math enrichment. Outside of mathematics, Mahbuba is usually bickering with friends, taking abnormally long walks in Cambridge, Boston, and New York City, or reading memoirs and poetry.

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Maria Tyutyunik

Teacher (she/her)

Maria has loved math her entire life. She loves the beauty and elegance of a good proof, the ways concepts click together and connect in unexpected ways, and the way the grand edifice of mathematics rises from humble foundations and reaches the clouds. She also loves teaching -- particularly the moments when students suddenly see something they didn't before, and a light shines in their eyes. In her free time, Maria square dances, bakes, writes code, and reads stories. She also embroiders and has embroidered several designs based on mathematical patterns, including a Sierpinski triangle!

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Michelle Jiang

Teacher (she/her)

Michelle graduated from Harvard in 2026 with a double major in Applied Math and Government and a minor in Ethnicity, Migration, and Rights. She has always enjoyed math, and she was able to share her enthusiasm for math through her role as a Course Assistant for the Harvard Math Department. Now, she is excited to continue working with students through CMC and showing them how fun math can be. When she’s not teaching, Michelle can be found crocheting, trying out new food spots, or spending time with loved ones.

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Misael De Los Reyes

Teacher (he/him)

Misael studied Chemistry with a secondary in Molecular and Cellular Biology at Harvard College. He has always enjoyed mathematics and challenging himself to approach problems through creative thinking. Misael has taught students of various ages and is passionate about making high-quality educational opportunities accessible to students from all backgrounds. In his free time, he enjoys going on food crawls, expanding his music taste, and exploring the outdoors. A fun fact about Misael is that he is also a licensed EMT!

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Nataliya Yufa

Co-Founder (she/her)

Nataliya Yufa first got hooked on teaching math in 1st grade, when trying to solve a particularly hard math problem while walking home from school with a friend. As an undergrad at MIT, she got hooked on mathematical research - working in knot theory and algebraic geometry applied to materials science. While working on her Ph.D. in physics in Chicago, Nataliya caught the teaching bug, working with undergrads at U Chicago, and K-12 students and adults in STEM outreach. On the South Side of Chicago, where the inequities in educational opportunities are particularly great, she identified math as the thing that would hold back low-income, underrepresented students from high-paying, stable jobs in STEM. Nataliya worked for 2 years as a researcher at a math education nonprofit, and eventually transitioned to the classroom, and then co-founded The Cambridge Math Circle with Mira Bernstein. In her free time, Nataliya likes to play piano, bake and go for slow runs with friends. 

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Nicholas Dang

Teacher (he/him)

Nicholas is a senior at Harvard College studying Chemical and Physical Biology + Statistics. Growing up, he was involved with math and science teams throughout middle and high school, and he loved the camaraderie and collaboration built through competition. Being a leader of these teams fostered an enduring love for STEM and for teaching that he has carried to college where he is now a statistics teaching fellow. Outside of school, he loves reading books, playing intramural sports, and exploring new restaurants around Boston (he's an avid Beli user!).

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Nidhi George

Teacher (she/her)

Nidhi is an undergraduate at Harvard College studying Psychology and Women, Gender, and Sexuality Studies. She taught math classes throughout high school, and has completed coursework through calculus. She loves working with younger students and building up their confidence in math and beyond. For fun, Nidhi loves going to concerts and trying new coffee shops and restaurants. She’s excited to work with all students!

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Olukayode Ekundare

Teacher (he/him)

Olukayode is a first-year at Harvard College who plans to concentrate in Mathematics and Music! He loves using Desmos Graphing Calculator to make interactive explorations of concepts, and when Olukayode doesn't have math homework to do, he loves to produce music and play relaxing video games!

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Piers Hanson

Teacher (he/him)

Piers graduated from St. Olaf College in 2024 with a degree in Mathematics and Computer Science. He participated in various local mathematics programs during middle and high school, which introduced him to fun methodologies and techniques to solving interesting math problems. His favorite way to learn mathematics involves tackling new math problems and thinking/discussing various ways that he could go about arriving at a solution. During his free time, he enjoys watching anime, solving rubix cubes and playing pickleball.

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Raunak Kundagrami

Teacher (he/him)

Raunak joined the Harvard Biophysics PhD program in the fall of 2023. Before that, he majored in math and biochemistry at the University of Chicago. He was also a teacher for Math Circles of Chicago, where he loved watching students' excitement when tackling fun math problems. Originally from Houston, TX, Raunak enjoys singing in choir and watching soccer. He used to perform stage magic as a kid.

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Riddhem Kapoor

Teacher (she/her)

Riddhem is a sophomore at Harvard College studying Neuroscience (MBB) with a secondary in Economics on the Pre-med track. She loves to hang out with her friends and try out new returants/cafes, do arts and crafts, and loves karaoke. Prior to the Cambridge Math Circle, she has also taught at Kumon for two years. She has always enjoyed mathematics and is excited to share that joy with the kids at the Cambridge Math Circle.

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Robin Xiong

Teacher (she/her)

Robin is a student at the Harvard Graduate School of Education in Learning, Design, Innovation, and Technology, and completed her undergraduate degree in Computer Science at MIT. Growing up, she has always loved working with students, and after discovering an MIT program dedicated towards obtaining a teacher license, she pivoted and is now pursuing being a research informed K-12 educator. In her free time, when not taking classes or tutoring local students, you may find her taking photos around the Boston area, or crocheting!

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Saba Zerefa

Teacher (she/her)

Saba is a first-year PhD student at Harvard University. She graduated from Harvard College in 2023, where she studied electrical engineering and math. She fell in love with math when she began learning proofs. Saba loves teaching for CMC because she enjoys helping students develop confidence in their problem-solving abilities. In her free time, she likes to run, produce music, and make robots.

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Sam Cranston

Teacher (he/him)

Sam is a junior at Tufts University studying math. He was attracted to CMC after his work as a tutor in the Boston area. He loves seeing how different students approach the same topic/problem with unique perspectives. Outside of academics Sam sings acapella in Tufts’ S-Factor and plays trombone in the student-lead jazz band. A fun fact about him is that he loves cooking and trying new foods.

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Sasha Brownsberger

Teacher (he/him)

Sasha Brownsberger (he/him) is a graduate student at Harvard University, where he studies astrophysics and cosmology.  Sasha has always been an enthusiastic teacher, from elementary arithmetic to graduate cosmology.  He loves science and math, and hopes to make both more accessible to everyone (children and adults alike).  Sasha’s astrophysics research focuses on the ‘dark sector’ of cosmology, working to use both instrumentation and data science to understand the detailed evolution of our Universe.  When focusing on more Earthly pursuits, Sasha is a passionate runner and climber, and loves to play Magic the Gathering and Dungeons and Dragons.

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Sophia Benjamin

Teacher (she/her)

Sophia studies mathematics at MIT (class of 2026). She's passionate about teaching math to kids and has taught at CMC since spring 2023, as well as for other math outreach initiatives. Sophia enjoys walking/running/climbing/frolicking in nature, making bad puns, and spinning things that are on fire. Her favorite dinosaur is the Parasaurolophus.

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Sophia Smith

Teacher (she/her)

Sophia is a second year student at MIT majoring in mathematics. She loves applying pure math concepts to real world problems like public transit and recycling. Sophia is a HCSSiM '24 alum. She enjoyed going to summer math program where she could explore many news math topics. Sophia hopes to give her students the same freedom and excitement about math! Outside of math, Sophia loves to bake cookies, bike around Boston, and play cards with friends.

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Sovannjet Lim

Teacher (she/her)

Sovannjet is an MIT student (Class of 2027) studying biomedical engineering and materials science, with strong side interests in math, music, and linguistics. She is a huge believer in the self-discovery and artistic beauty of math and seeks to motivate problems and facilitate creative problem-solving and genuine understanding. She also loves lettering, making ambigrams, and rhyming, and is involved in a cappella, musical theatre orchestra, puzzlehunt writing (e.g., MIT Mystery Hunt), and quizbowl at MIT.

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Yuliya Doshen

Teacher (she/her)

Yulia holds MS degrees in Applied Math and Electrical Engineering. She loves teaching at the Cambridge Math Circle.

Teaching Alumni
 

Adam Dionne
Alvin Chen
Amanda Cui
AnaMaria Perez
Ananya Tadigadapa
Andrew Courtney
Ben Goldberg
Brendan Riviere
Camila De Valencia
Catherine Ye
Charley Cheng
Claudia Cabral
Diana Shklover 
Edith Herwitz
Edward Athaide
Elijah Nudell-Cook
Emanuele Leoncini

Emma Greaves

Gabby David
Grace Chen

Hakim Walker

Haley Lifrieri
Harris Allen
Ilaria Seidel
Iris Yang
Jackson Mann
Jasmine Huang
Jeffrey Shi
Jennifer Gao
Jinho Park
Jonathan Zhang
Julia Woodward
Katherine Lin
Lauren Kwee
Lili Wilson

Luca Hinrichs

Matthew Russo

Maximillian Li

Maya Mau

Midori Zhou

​

Moriah Lim

Naomi Hegwood
Nico Vallenas
Noah Olsman
Nosa Lawani
Phoebe Lin
Poonam Sahoo
Rishi Verma
Ray Fitzgerald
Roy Long
Sarah Figge Hussain
Sarah Gleghorn
Scott Luro
Shoshana Elgart
Siva Muthupalaniappan
Sophie Woodward
Taylor Yeracaris
Ula Fu
Valerie Yuen
William Ning

Call us: 1-617-454-7627
info@cambridgemathcircle.org

Cambridge Math Circle is a 501(c)3 organization. Tax ID# 82-4087225

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©2021-2026 by the Cambridge Math Circle, Inc.

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