Meet 2025 Anja S. Greer Conference Leaders
Kevin Bartkovich, Director
Phillips Exeter Academy
Kevin moved to Exeter in the fall of 2009, where he began teaching in the Math Department. He was named director of the Anja S. Greer Conference on Mathematics and Technology in 2018. Prior to life at PEA, Kevin was a founding faculty member at North Carolina School of Science and Mathematics, where for 17 years he taught and worked with colleagues to write pre-calculus and calculus textbooks. In between, Kevin and his wife JD went on a 10-year adventure to Uganda where they helped found Christ School Bundibugyo, a boarding secondary school located in a remote village near the border with Congo. Kevin and JD are licensed foster parents in New Hampshire. They have nine children.
Dan Butler
The Lovett School
Dan has been teaching math at the middle school and high school level for the past 41 years in the public and independent school systems. He has taught all mathematics courses from pre-algebra to multivariable calculus and linear algebra. Dan gives numerous workshops in mathematics both in the United States and abroad. He has been involved in professional development workshops for the past 35 years including 32 years as an instructor in the Anja S. Greer Conference. Dan is passionate about math and math education and is known to all of his students as “Mathman”.
Adam Chawansky
Phillips Exeter Academy
Adam taught secondary math in NYC public schools for over a decade after leaving actuarial consulting, because he wanted to do more fulfilling work that felt like it made a difference. He loves collecting interesting problems to help students experience the beauty of mathematics. Through these experiences, students realize math is much larger than just computation and memorization. Outside of the classroom, Adam enjoys trail running, creating in the Design Lab and spending time with his family.
Rebecca Courter
Charlotte Latin School
Rebecca Courter earned her Ph.D. in pure math from the University of Southern California began her teaching career at Pasadena City College in California. Her family moved to North Carolina in 2020 and she began teaching High School math at Charlotte Latin School. She loves puzzles and sharing her love of math, logic, and proofs with her students. Her favorite math joke is, “What did zero say to eight? … Nice belt!” Her current interests include effective pedagogy and helping students develop a growth mindset through quick and intentional activities in math class.
Diana Davis
Phillips Exeter Academy
Diana teaches math, coaches girls cross country and is a dorm head at PEA. She previously created and taught problem-centered, discussion-based math classes at Northwestern University, Williams College and Swarthmore College. Outside of teaching and pedagogy, she does research in geometry, dynamical systems, and gerrymandering. She also attended PEA as a highly engaged high school student. Diana has worked at the conference since 2004 and as a leader since 2012. She loves to create opportunities for people to think deeply about math and discuss it with each other.
Jess Emory
Phillips Exeter Academy
A New Hampshire native, Jess returned to the Granite State after spending five years teaching in private schools in New York City, a semester as an associate lecturer at the Royal Thimphu College in Bhutan, and a term working as a researcher at IIIT Hyderabad in India. Her teaching adventure started at Meridian Academy in Massachusetts, teaching in mixed-age, project-based, grade-free classrooms empowering students to find their love of STEM while completing New Teachers Collaborative at the Ted Sizer Essential School. Outside the classroom, Jess loves to go for walks in the woods, read, bake, all things D&D, and travel.
Brent Ferguson
F.E.R.G. Math Mentoring
Brent has been teaching for 32 years across a variety of settings: East Coast, West Coast, and Midwest; public and private (both boarding and day schools); and serving boys, girls, and coed communities. His experience spans high school (primarily), middle school (occasionally), and collegiate levels (currently). A participant in the PEA Greer Conference in 1997, he is thrilled to return to this vibrant gathering of sharing, learning, and connection.Currently, Brent mentors teachers through professional development opportunities and actively engages in forums like NCTM as a form of ongoing professional “re-creation.” He’s passionate about puzzles of all kinds—jigsaw, mathematical, word-based, and more—and enjoys a spirited game of ultimate frisbee. Brent resides in Princeton, New Jersey, with his amazing spouse.
Thomas Hill
Brewster Academy
Tom earned a B.A. in mathematics at the University of Colorado, then attended Keene State College to earn his education certification. He has been teaching high school mathematics at Brewster Academy in New Hampshire since 2015. He has taught a range of classes from algebra II to AP calculus. He enjoys a good pun and an even better board game.
Featured Speaker
Ron Lancaster
University of Toronto
Ron is an associate professor emeritus at the University of Toronto, where he taught mathematics courses for pre-service teachers for 17 years. Ron taught grades 7-12 math for 23 years in coed public schools and a K-12 all-girls school. Ron’s professional activities include consultations and conference presentations in North America, Asia, England, the Middle East, Africa and India. Ron has authored/edited over 150 articles for the National Council of Teachers of Mathematics and is the recipient of the 2015 Margaret Sinclair Memorial Award in Mathematics Education awarded by the Fields Institute.
Greta Mills
The Greene School
Greta’s fascination with math has evolved from a love of pure math to embracing its applications. Her teaching career has focused largely on helping students and teachers develop a modeling mindset. In her current role as Director of Curriculum, Greta has prioritized the introduction of data science and modeling into the mathematics curriculum. Greta has been a judge for the M3 Challenge since 2012 and is serving as the NCTM judge for the HiMCM Modeling Contest.
Subhadra Srinivasan
Hanover High School
Subha has been a high school mathematics teacher for over ten years and has taught different topics from Geometry to Calculus. She has a PhD from Thayer School of Engineering, Dartmouth College, and before becoming a high school teacher, she taught at Lebanon Community College and was also Assistant Research Professor at Dartmouth College. Subha enjoys the challenge of engaging high school math students with mathematical ideas and explorations. She is also passionate about mindfulness and how to incorporate these practices into the math classroom.
Julie Van Wright
Phillips Exeter Academy
Julie has taught a wide range of middle and high school math classes over the last 12+ years. Before joining the math faculty at Phillips Exeter Academy in 2019, Julie developed and taught student-centered and Harkness-based math classes at independent schools in Rhode Island and Colorado. While she enjoys teaching at all levels, Julie especially appreciates teaching Algebra 1 where so many underlying concepts come together to help students build their future foundational understanding of math.
J Wysocki
Lakeside School
J Wysocki is a dedicated Math and Computer Science teacher with over 30 years of experience in both public and independent schools. Now in his 34th year, he has taught courses from Algebra through Multivariable Calculus and Computer Science. J is known for designing engaging, inquiry-based curricula and integrating technology to deepen learning. He takes joy in mentoring colleagues, supporting students as they connect math and coding to the wider world, and sharing his work through national presentations and workshops.