Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: Boys and Girls, Variation 1

For Teachers 1st - 2nd Standards
This word problem focuses on the Put Together/Take Apart contexts for addition and subtraction. Students may use objects, pictures, or equations to represent their solutions. Examples and explanations are provided.
Lesson Plan
Better Lesson

Better Lesson: Put Together or Take Away?

For Teachers 1st Standards
First graders learn the basics of 1.OA.1 by mixing addition and subtraction word problems from day 1. The focus question is: Put together or take away?

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