Max Ray-Riek is a curriculum writer at Illustrative Mathematics and is the lead author of Powerful Problem Solving: Activities for Sense Making with the Math Practices. He previously worked for The Math Forum, focusing on fostering problem solving, communication, and valuing student thinking. Max is a former secondary mathematics teacher who regularly presents at regional and national conferences.
Watch Max and Suzanne Alejandre talk about giving students effective feedback.
Follow him on Twitter @maxmathforum.