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
Supporting grades: K12345

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. Mathematically proficient students understand and use stated assumptions, definitions, and previously established results in constructing arguments.

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Excerpt 2: Commentary and Elaborations for MP.2 (Page 4) - Reason abstractly and quanti...

Standards for Mathematical Practice: Commentary and Elaborations for Grades K-5

Illustrative Mathematics

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Excerpt 4: Commentary and Elaborations for MP.4 (Page 6) - Model with mathematics

Standards for Mathematical Practice: Commentary and Elaborations for Grades K-5

Illustrative Mathematics