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Lesson

Standard 3: Construct Viable Arguments & Critique the Reasoning of Others

Clip 9/41: Standard 3: Construct Arguments & Critiques Using Fraction Multiplication Part 2B

Overview

Mathematically proficient students… justify their conclusions, communicate them to others, and respond to the arguments of others.

After her 4th- and 5th-grade students’ initial sorting process, Erika Isomura reminds her them that they’ve been working with bar model representations. She asks them to make sure the pictures match the stories.

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Materials & Artifacts