Document Excerpt 3: Types of Addition and Subtraction Situations, and Methods for Solving Single-Digit Addition and Subtraction Problems (Pages 6-7) icon
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Excerpt 3: Types of Addition and Subtraction Situations, and Methods for Solving Single-Digit Addition and Subtraction Problems (Pages 6-7)

Progressions for the Common Core State Standards for MathematicsDraft K Progression on Counting & Cardinality and K-5 Progression on Operations & Algebraic Thinking
Supporting grades: K12345

Description: One of a series of documents describing the progression of a topic across several grade levels, informed both by research on children's development and by the structure of mathematics. Students develop meanings for addition and subtraction as they encounter problem situations in Kindergarten, and they extend these meanings as they encounter increasingly difficult problem situations in Grade 1. And they learn and use increasingly sophisticated computation methods to find answers.

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Excerpt 2: Counting & Cardinality in Grade K (Pages 4-5)

Draft K Progression on Counting & Cardinality and K-5 Progression on Operations & Algeb...

Progressions for the Common Core State Standards for Mathematics

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Excerpt 4: Operations & Algebraic Thinking in Grade K (Pages 8-11)

Draft K Progression on Counting & Cardinality and K-5 Progression on Operations & Algeb...

Progressions for the Common Core State Standards for Mathematics