MARIA BLANTON, Senior Scientist, TERC, Inc., Cambridge, MA.

Her primary interests include understanding the foundations of children’s algebraic thinking in elementary grades and designing inclusive innovations that improve children’s algebra readiness for middle grades.

ANGELA MURPHY GARDINER, Senior Research Associate, TERC, Inc., Cambridge, MA.

Her primary research interests include students’ algebraic thinking and understanding of functions, methods for delivering effective teacher professional development, and understanding the relationship between characteristics of professional development and student outcomes.

ANA STEPHENS, Researcher, University of Wisconsin-Madison.

Her research addresses the development of elementary students' algebraic reasoning. She is particularly interested in students' understanding of mathematical equivalence and the tasks that support the development of this understanding.

ERIC KNUTH, Professor of STEM Education, University of Texas at Austin.

His research focuses on the meaningful engagement of students in mathematical practices and their development of increasingly more sophisticated ways of engaging in those practices, focusing in particular on practices related to algebraic reasoning and learning to prove.