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David Patrick

David Patrick, Director

David Patrick is a curriculum developer at Art of Problem Solving (AoPS).  He is the author or co-author of 4 of AoPS's textbooks and an instructor for the AoPS online school.  As a high-school student, Dave was a USA Mathematical Olympiad winner in 1988.  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 before joining AoPS in 2004.  Dave has been an invited guest instructor at multiple teachers' circles in the San Francisco Bay Area and at the Navajo Nation Math Circle.


David Brown


David Brown received his Bachelor’s degree in mathematics and physics from Bucknell University and his Ph.D. in theoretical physics from the University of Rochester. Following a career as a research scientist at UCSD, he became involved with the San Diego Math Circle and soon became its Director.  At SDMC, David is involved with talented students in the fifth through twelfth grades and is especially concerned with feeding the vigorous intellectual appetites of today’s highly-motivated students.  SDMC has grown substantially and the swelling achievements of its students have contributed to San Diego’s growing visibility as a center of excellence in math and science.  David sees SDMTC as an opportunity to share the benefits of math circle experiences with middle school teachers, who play a crucial role in the development of young peoples’ attitudes, abilities, and achievements.

Yana Mohanty

Yana Mohanty


Yana is a native of Odessa, Ukraine. She immigrated to the United States in 1979. After graduating from UCLA with a Bachelor of Science in Electrical Engineering, she worked at Hughes Aircraft, and subsequently earned her Masters Degree in Electrical Engineering from the University of Massachusetts at Amherst. Yana earned her Ph.D in Mathematics at UCSD in 2002. Since then taught mathematics for 5 years at UCSD, and for a year at Palomar college.

Yana enjoys bringing the perspective gained from her varied career and exposure to different cultures into the classroom. She is one of the instructors for the San Diego Math Circle, and she currently designs math educational tools.             


Shannon Rogers

Shannon joined AoPS in 2011 after earning her degree in Mathematics from UCLA. While at UCLA, Shannon also spent a great deal of time delving into education, especially at the elementary level. She completed extensive coursework in Education, spent hundreds of hours assisting in classrooms at the UCLA Lab School, and was a research assistant on studies with UCLA's Graduate School of Education & Information Sciences. Shannon also spent two years teaching at the Los Angeles Math Circle (LAMC), and was the Lead Instructor for the LAMC's Junior Group in 2010. Now in San Diego, she frequently teaches student groups at the San Diego Math Circle and is an active participant in the San Diego Math Teachers' Circle. Shannon is co-author of AoPS's Beast Academy series of books for students in grades 2-5. She loves math jokes, sign language, Doctor Who, and all things combinatorics.