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Angie Brand
EM4 2.9 - Change-to-More Math Message
年级：
1st Grade
学科：
Math
标准：
Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem. (1.OA.A.1) (DOK 2) (1.OA.A.1.)
学生说明
教师备注（学生不可见）
This activity goes with the Math Message for Everyday Mathematics 4 first grade lesson 2.9.
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2. As the teacher reads the story problem, use the 
to move the pictures.
3. Use 
to complete the change-to-more diagram.
4. 
