This document discusses how questioning can help students comprehend math concepts. It begins by noting research showing teachers ask 300-400 questions per day, and that questioning structures the classroom environment and how students learn. The document then discusses how questioning supports the Common Core State Standards for reading and the standards for mathematical practice. It provides examples of "thick" and "thin" questions and an activity where students sort questions. The document also discusses using student discourse and metacognition to support questioning and problem solving. It concludes by asking teachers to identify next steps for applying these questioning strategies.