Karen C. Fuson

Professor Emerita
Northwestern University

Expert: Karen Fuson

Dr. Karen Fuson is a Professor Emerita of Learning Sciences, School of Education and Social Policy, and of the Department of Psychology, Northwestern University.

She has published over eighty research articles on mathematics teaching and learning. She was a member of the National Research Council (NRC) Committee that wrote Adding It Up and the NRC Committee that wrote Mathematics Learning in Early Childhood: Paths Toward Excellence and Equity. She wrote the chapter on whole numbers for the NCTM Research Companion to the 2000 Standards and the introductory chapter for the NRC book, How Students Learn: Mathematics in the Classroom.

Professor Fuson is the author of the K-6 math program Math Expressions based on research in the NRC reports and on aspects of international math programs. She worked on the Common Core State Standards-Math, the learning progressions for these standards, and the PARCC and Smarter Balance tests.

Related Work
Karen developed webcasts to explain the CCSS-Math and show visual supports for student understanding. The examples come from her research-based Kindergarten to Grade 6 math program Math Expressions published by Houghton Mifflin Harcourt. Visit her faculty webpage

Read a paper that Karen wrote with Sybilla Beckman about the meaning of standard algorithms in the Common Core State Standards