Document Excerpt 3: Commentary and Elaborations for MP.3 (Page 5) - Construct viable arguments and critique the reasoning of others. icon
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Excerpt 3: Commentary and Elaborations for MP.3 (Page 5) - Construct viable arguments and critique the reasoning of others.

Illustrative MathematicsStandards for Mathematical Practice: Commentary and Elaborations for Grades K-5

Description: Mathematically proficient students understand and use stated assumptions, definitions, and previously established results in constructing arguments. They make conjectures and build a logical progression of statements to explore the truth of their conjectures. They are able to analyze situations by breaking them into cases and can recognize and use counterexamples

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