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Metro Chicago Mathematics Initiative

Learning Sciences Research Institute College of Liberal Arts and Sciences

Build on It: A New Math Talk Hand Signal

Posted on September 18, 2023

Number Take Hand Signals for I'm thinking, I have an answer and a strategy, I have more than one strategy, I agree, and Build on it!

Coach: Margie Pligge

District: 127.5. — Ridge Central

Grade band: K–8

Fourth Graders in Ms. Haes’ class invented a “Build on It“ math hand signal to support discourse. Whenever a speaker is explaining or struggling to explain or justify mathematics, members of the class display the “Build on It” hand signal to support more learning. Check out a short video to see how it works!