Jose’s Claim 2.NBT.A

Goal: Think like a mathematician! Build the mathematical habits of interpreting, deciding and defending.

Students are working with base-ten blocks. Lamar wants to make the number 261. He has plenty of hundreds blocks and ones blocks to work with, but only 4 tens blocks. His friend Jose said,

You can still make 261 with the blocks you have.

Source: Illustrative Mathematics 

Additional Resources: Achieve the Core

Decide and Defend Jose’s Claim Slides

Decide and Defend Jose’s Claim Handout

Back to Decide and Defend Tasks

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