Document Excerpt 3: Geometric Measurement in Grade 1 (Pages 8-11) icon
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Excerpt 3: Geometric Measurement in Grade 1 (Pages 8-11)

Progressions for the Common Core State Standards for Mathematics

Progressions for the CCSSM: Geometric Measurement in Grades K-5

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. First graders should continue to use direct comparison-carefully, considering all endpoints-when that is appropriate. Once they can compare lengths of objects by direct comparison, they could compare several items to a single item, such as finding all the objects in the classroom the same length as (or longer than, or shorter than) their forearm.

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Excerpt 2: Geometric Measurement in Grade K (Pages 6-7)

Progressions for the CCSSM: Geometric Measurement in Grades K-5

Progressions for the Common Core State Standards for Mathematics

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Excerpt 4: Geometric Measurement in Grade 2 (Pages 12-15)

Progressions for the CCSSM: Geometric Measurement in Grades K-5

Progressions for the Common Core State Standards for Mathematics