
Steven Alexander
Portland Public Schools

Steven is a high school math teacher in the local Portland Public Schools. Before graduating with a math degree from Princeton, he was a New York City and NY State champion math competitor, got honorable mention in the Putnam and had a problem solution published in Mathematics Magazine. He taught two summers at HCSSiM. Steven has done graduate work in theoretical computer science, and practiced patent law. He is a sometime top Scrabble player. This will be Steven's first time teaching at MathPath, and he will be teaching contest math courses.



Glen Van Brummelen
Quest University, British Columbia, Canada


Distinguished mathematical historian, with special expertise in ancient and medieval mathematics and astronomy, and past president of the Canadian Society for History and Philosophy of Mathematics, Professor Van Brummelen returns in 2018 for his 15th year at MathPath. He is author of The Mathematics of the Heavens and the Earth: The Early History of Trigonometry. His book, Heavenly Mathematics: The Forgotten Art of Spherical Trigonometry, is based partly on his MathPath breakouts. In 2016 Professor Van Brummelen won the Mathematical Association of America's Haimo distinguished teaching award, and in 2017 he was named a 3M National Teaching Fellow (Canada).


Jane Butterfield
Assistant Teaching Professor, University of Victoria, British Columbia, Canada

Professor Butterfield studies graph theory and math education. She has successfully talked about graph theory and combinatorics to many different types of audiences and age ranges. Her PhD research was in extremal graph theory, but she also enjoys topological graph theory, Ramsey games, and pursuit games on graphs. While a graduate student at the University of Illinois in UrbanaChampaign, she received three teaching awards, including the Campus Award for Excellence in Undergraduate Teaching. She spent two years teaching calculus to talented high school students for the Math Center for Educational Programs at the University of Minnesota, and is now an Assistant Teaching Professor at the University of Victoria in British Columbia. At UVic, she manages the Math & Stats Assistance Centre—because of the US & Canadian spelling differences, this means she has worked for both a Center and a Centre! This is her third year at MathPath.



Owen Byer
Professor of Mathematics, Eastern Mennonite University


This will be Owen's 5th year at MathPath, and like the rest of the faculty, he is a lover of beautiful mathematics. He just finished writing a Discrete Math book, Journey into Discrete Mathematics, to be published soon by the MAA. It contains some of his favorite problems, which he'll share with Mathpath students upon request. Owen has previously taught breakouts at Mathpath on Inversions, Affine Transformations, Probability, and History of Mathematics. His favorite hobbies include playing basketball, board games, and bridge.


David Clark
Assistant Professor, Grand Valley State University, Michigan

David studies combinatorics—the art and science of counting in interesting ways. He loves to create handson activities that help students learn about mathematics. In particular, he finds ways to create games that reveal deep results about modern communications. David is also crazy about playing games with finite geometries. This is his 5th year at MathPath. Beyond mathematics, David is an avid hiker, backpacker, biker, and boardgamer.



Matthew DeLong
Professor of Mathematics, Marian University, Indianapolis


Professor DeLong has won two national teaching awards from the Mathematical Association of America (2005 Alder Award, 2012 Haimo Award). He has taught summer mathematics courses for high ability high school and middle school students. He has also been a successful mathematical contest coach at both the college and elementary school levels. His mathematical interests are primarily in knot theory and number theory. In addition, he enjoys performing and directing choral music and musical theatre. This will be Professor DeLong's fifth summer at MathPath.


Dominic Klyve
Associate Professor of Mathematics, Central Washington University

Dominic is a number theorist and a historian of mathematics, with special expertise on the life and work of Leonhard Euler. He has taught classes in the history of mathematics around the country, and as far away as New Zealand. He is a winner of a national teaching award from the Mathematical Association of America (the 2014 Alder Award). He loves working on research projects with students, and is really looking forward to his second year at MathPath.



Melissa Lynn
Math Center for Educational Programs Postdoc, University of Minnesota


Melissa Lynn is passionate about teaching students that math is exciting, fun, creative, and allaround awesome! She has taught advanced middle and high school students in UMTYMP at the University of Minnesota, and is excited for her first year at MathPath. Her areas of research are algebraic geometry and number theory, and she also has a strong interest in algorithms and programming. Most of all, she likes finding new and interesting ways to approach math problems. Outside of math, she enjoys playing and coaching ultimate frisbee.


Asia Matthews
Quest University, British Columbia, Canada

Asia has been teaching at Quest University in Canada since 2014. Her primary professional interest is mathematics education, specifically problem design, creativity and communication. She is also interested in discrete mathematics, especially combinatorics, the geometry of paper folding, and the history of mathematics. She has been involved in a number of mathematics outreach programs for elementary and high school students and their families. She finds joy in teaching people what it is to think mathematically and to develop and communicate their own mathematical ideas.



Stephen Maurer
Professor of Mathematics Emeritus, Swarthmore College, Swarthmore PA
Executive Director, MathPath


Professor Maurer is a longago Chair of the American Mathematics Competitions (in the 1980s!), coauthor of "Discrete Algorithmic Mathematics" and "Contest Problem Book IV", and an expert on mathematical writing, in which he has instructed "MathPathogens" for many years through discussing their solutions to the Qualifying Test. He also taught breakouts on mathematical induction, on combinatorics, and on something he named Linear Set Geometry. Among his various hobbies is zip codes. He used to be able, if you told him where you lived, to tell you your zip code within 5.
Unfortunately, he has Parkinson's Disease, and in the last 4 years, it has gotten much worse. This summer for the first time he is not able to attend the whole camp, but he does intend to beam in regularly, to continue the behindthescenes work necessary for MathPath to run, and he very much hopes to make it to camp for the final week, to meet all of you students he admitted, and to give the writing plenaries that week. The photo shows him last year, using technology to give his plenaries while seated – he would much prefer to be standing at a blackboard using his beloved colored chalk. If he comes to camp, he will need your help and understanding.


Kathryn Nyman
Associate Professor of Mathematics, Willamette University

A combinatorialist at heart, Professor Nyman enjoys counting visually appealing objects, such as graphs, partially ordered sets, and colorings. She also has a fondness for the mathematics of decisions and preferences, and she works on questions in voting theory and fair division. She is a recipient of the Clark Distinguished Teaching Award from Cornell University (where she did her graduate studies). This is Professor Nyman's second year at MathPath, and she is especially excited to be here. Her outside interests include swing dancing, board games, hiking and photography.



Joyce O'Halloran
Professor of Mathematics, Portland State University


Joyce O'Halloran has been a mathematics professor for over 30 years at Portland State University. Her longterm interests have focused on active learning. In her current research she explores the efficacy of alternative classroom formats at the university precalculus level. She has conducted experiential workshops for LSAMP (Louis Stokes Alliances for Minority Participation), IMP (Interactive Mathematics Project) and AWSEM (Advocates for Women in Science, Engineering & Mathematics). She also breeds and trains pack llamas. This will be her first summer teaching at MathPath.


Jonathan Rogness
Director of the Math Center for Educational Programs and UMTYMP, University of Minnesota

Professor Rogness loves to make complex mathematical ideas accessible to students of all ages. He is well known for his beautiful mathematical visualizations, including an awardwinning video, Möbius Transformations Revealed, which went viral online and has been viewed by nearly two million people. Rogness is the Director of the University of Minnesota's Mathematics Center for Educational Programs, which runs one of the nation's premier accelerated mathematics programs for middle school students. 2018 will be his 9th year at MathPath.



Amy ShellGellasch
Eastern Michigan University


Dr. ShellGellasch received her DA in mathematics from the University of Illinois at Chicago in 2000. After a threeyear postdoctorate fellowship at the United States Military Academy at West Point, she has taught college mathematics in six states and two countries while following her active duty military spouse around the world until his retirement in 2017. Her research is in the history of mathematics and its uses in history and has published several resource books, a biography, and a text book all this field. From 20132017 she conducted research at the Smithsonian National Museum of American History and contributed to their webbased resources. Currently Dr. ShellGellasch produces content material for the Smithsonian Learning Lab and teaching mathematics at EMU. She also presents workshops on the Smithsonian Learning Lab to college faculty. She has organized three MAA Short Courses and one MAA minicourse.


George R. Thomas

George R. Thomas is an independent mathematician with long experience teaching and mentoring in summer programs for students showing high promise in mathematics. He founded Canada/USA Mathcamp, MathPath and Epsilon Camp. Thomas's research has ranged over Semigroups and Extremal Graph Theory with forays in Analytical Number Theory. See Dr. Thomas' views on mathematics education in America's schools.



Sam Vandervelde The Proof School, San Francisco


Dr. Vandervelde delights in presenting beautiful mathematics in an engaging manner to students of all ages. He is an experienced problem solver and problem writer. He currently oversees school operations and directs the program in mathematics at Proof School, a new independent school for kids who love math in the San Francisco Bay Area. Aside from math, he enjoys playing pickleball, spending time outdoors, and eating Thai food. Summer 2018 will be his thirteenth year at MathPath.


Philip Yasskin
Associate Professor of Mathematics, Texas A&M University

Dr. Yasskin is very involved in outreach activities throughout his academic career. He is the cofounder and codirector of two nationally recognized programs: the TAMU Summer Educational Enrichment in Math (SEEMath) for 6th8th graders since 2002, and the TAMU Math Circle weekly during the school year for 5th12th graders since 2011. Since 2011 he has served as the Program Director for the Special Interest Group of the Mathematical Association of America on Math Circles for Students and Teachers. In 2014 he received the Raytheon, MathMovesU, Math Hero Award. He has also received 3 departmental awards for Teaching and Service and a college award for Teaching. This will be his second year teaching at MathPath.



Paul Zeitz
Professor of Mathematics, University of San Francisco


Professor Zeitz specializes in mathematical problem solving. As a high school student, he was a member of the first USA team to compete in the International Mathematical Olympiad, and, as a college professor, has helped to coach several USA teams, including the 1994 team that received a perfect score in Hong Kong. He has organized several math competitions in the San Francisco Bay Area, and is the author of The Art and Craft of Problem Solving. He is one of the founders of Proof School, the nation's first secondary school for "math kids," and currently serves as the chairman of Proof School's board of trustees.


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