Peter Liljedahl is a Professor of Mathematics Education in the Faculty of Education at Simon Fraser University in Vancouver, Canada. He is the former president of the International Group for the Psychology of Mathematics Education (PME), the current president of the Canadian Mathematics Education Study Group (CMESG), senior editor for the International Journal of Science and Mathematics Education (IJSME) and a member of the NCTM Research Committee. Peter is a former high school mathematics teacher who has kept his research interest and activities close to the classroom. He consults regularly with teachers, schools, school districts, and ministries of education on issues of teaching and learning, assessment, and numeracy.

Matt Parker is a stand-up comedian and ex-teacher (he got out after only four years in the classroom). Matt now makes YouTube videos on Numberphile and his own Stand-up Maths channel which have been watched over 10^8 times and is a #1-best-selling math author. Originally from Australia, Matt now lives in the UK but travels wherever the math takes him.

Dr. Andrew Allen is an Associate Professor in the Faculty of Education at the University of Windsor and the university’s inaugural Anti-Racism Pedagogies Teaching Leadership Chair (ARPTLC). He teaches Elementary Mathematics Methodology and Foundations in the pre-service program. He is currently the co-coordinator of the Urban Education Partnership teacher education. His international development work includes rebuilding and supporting an orphanage and school in the Singida Region of Tanzania in East Africa. Dr. Allen is a former elementary classroom teacher in the Toronto District School Board.

Dr. Lisa Lunney Borden is a Professor in the faculty of education who holds the John Jerome Paul Chair for Equity in Mathematics Education striving to improve outcomes in mathematics for Mi’kmaw and African Nova Scotian youth. As an undergraduate student at StFX, Lisa began volunteering with X-Project which led her to a teaching career in We’koqma’q First Nation where she spent ten years as a secondary mathematics teacher, a vice-principal and principal, as well as the provincial mathematics leader for all Mi’kmaw Kina’matnewey schools in Nova Scotia. Lisa credits her students and the Mi’kmaw community for inspiring her to think differently about mathematics education which continues to shape her work today. She is committed to research and outreach that focuses on decolonizing mathematics education through culturally based practices and experiences that are rooted in Indigenous languages and knowledge systems. She is a sought-after speaker nationally and internationally and has a passion for working with teachers and their students. Lisa has helped to create the Show Me Your Math program that inspired thousands of Mi’kmaw youth to share the mathematical reasoning inherent in their own community contexts, and an outreach program called Connecting Math to Our Lives and Communities that brings similar ideas to Mi’kmaw and African Nova Scotian youth as an afterschool program. She currently serves as the vice-president of the Canadian Mathematics Education Study Group and sits on the Canadian Mathematical Society’s reconciliation committee.

Dr. Cathy Bruce studies mathematics education and is a founding faculty member of the Trent University School of Education. A former teacher, Cathy brings 14 years of classroom experience to her work as Professor, Dean of Education and most recently as acting Vice President Research and Innovation at Trent. She has an active SSHRC-funded research program involving multi-year studies of challenging areas of mathematics teaching and learning, including fractions. More information about her research can be accessed at www.tmerc.ca.

Tara Flynn is an educational researcher, author, and editor who has been an integral contributor to Dr. Bruce’s mathematics education research program at Trent University for the past 15 years, most recently as Director of Research.

Shelley Yearley is excited to be back in the classroom as a secondary school mathematics and student success teacher in the Trillium Lakelands District School Board after years as a K–12 curriculum consultant with the board, followed by a lengthy secondment as a mathematics Project Lead for the Council of Ontario Directors of Education (CODE).

Howie Hua is a math instructor at Fresno State who teaches math to future elementary school teachers. He is passionate about finding ways to humanize the math classroom, listening to how students think about math, and building mathematical confidence in students. In 2019, Howie was named Outstanding Lecturer for the College of Science and Math at his university. Outside of school, Howie likes to play piano, go on walks, make math memes, and make math explainer videos.

David is a middle school math teacher with the Weston Public Schools in Massachusetts and the Head of Content for Mathigon - the online, interactive, personalized and free math textbook of the future. David studied mathematics at Vassar College in Poughkeepsie, NY and education at the University of Massachusetts. In his 20+ years of teaching, David has held a variety of leadership roles. In 2017, David was selected as a runner-up for the Rosenthal Prize for Innovation and Inspiration in Math Teaching awarded by the Museum of Mathematics in New York City. David has been the Head of Content for Mathigon since 2020.

Sunil Singh is an author, storyteller, and a porous math educator. He taught math, physics, and English for 19 years before embarking on a new journey of sharing his passion for math history/narrative with people all around the world. He works at Amplify to help build/curate rich storytelling into the K to 12 math platform and at Mathigon as a content writer. He has also given workshops at The Museum of Mathematics in New York and The Royal Conservatory of Music in Toronto. His third book, Chasing Rabbits: A Curious Guide to a Lifetime of Mathematical Wellness(foreword written by Jo Boaler) will be out in Fall 2021.

Marian Small writes and speaks about K-12 math across the country. Her focus is on teacher questioning to get at the important math, to include all students, and to focus on critical thinking and creativity. Some resources she has written include MathUp, a digital teaching K– 8 resource., Making Math Meaningful for Canadian Students: K-8, Big Ideas from Dr. Small, Good Questions: A Great Way to Differentiate Math Instruction, Leaps and Bounds toward Math Understanding, Uncomplicating Fractions, Uncomplicating Algebra, Open Questions for the Three-Part Lesson (at several levels), Fun and Fundamental Math for Young Children, The School Leader’s Guide for Building and Sustaining Math Success, Math that Matters: Targetted Assessment and Feedback, Gr 3- 8,and Teaching Math Online.

Vanessa is the founder and director of The Math Guru, a super cool boutique math & science tutoring studio in Toronto. She is also the author of Math Hacks, a new book that totally makes math fun, stress-free and relatable for young kids and parents, and the host of Math Therapy, a podcast that works through guests’ math trauma. She has her Bachelor of Commerce, Teaching Degree, and Masters of Math Education. She appears regularly on national television and news outlets as an expert in math education, and speaks globally at conferences about re-inventing media representations of women in STEM. Her #goals are to be Lady-Gaga-famous and to totally change math culture so that STEM is finally as cool and accessible as basically every single Taylor Swift song ever. She failed Grade 11 math twice, which was the best thing that ever happened to her. Sidenote but totally relevant: Vanessa is a founding member of Toronto indie-rock band Goodnight, Sunrise. Mindy Kaling is her idol and Vanessa believes that she should be yours too.