Math.K.OA.A.1
 Common core State Standards
 Math: Math
 K: Kindergarten
 OA: Operations & Algebraic Thinking
 A: Understand addition, and understand subtraction

1:
Represent addition and subtraction with objects, fingers, mental images, drawings, sounds (e.g., claps), acting out situations, verbal explanations, expressions, or equations.
Drawings need not show details, but should show the mathematics in the problem. (This applies wherever drawings are mentioned in the Standards.)
Math.K.OA.A.3
Common core State Standards
 Math: Math
 K: Kindergarten
 OA: Operations & Algebraic Thinking
 A: Understand addition, and understand subtraction

3:
Decompose numbers less than or equal to 10 into pairs in more than one way, e.g., by using objects or drawings, and record each decomposition by a drawing or equation (e.g., 5 = 2 + 3 and 5 = 4 + 1).
Drawings need not show details, but should show the mathematics in the problem. (This applies wherever drawings are mentioned in the Standards.)
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Thought starters
 Why is it helpful for students to discuss the mental images they formed?
 Ms. Latimer takes multiple student answers to the same question. What effect does this have?
 How could this lesson be connected with addition and subtraction?
 See also Mathematical Practice Standard 7 in the CCSS?
School Details
Lakeridge Elementary School7400 South 115th St
Seattle WA 98178
Population: 420
Data Provided By:
Teachers
Stephanie Latimer
Jane Fung Sep 1, 2012 1:46am
Alona YILDIRIM Sep 30, 2012 12:43pm
Linda Dearman Oct 7, 2012 2:56pm
stephanie tipton Oct 21, 2012 12:12pm
Katie Booker Oct 22, 2012 8:12pm