Reflection: Connection to Prior Knowledge Using Doubles Facts for Solving Subtraction - Section 1: Rev Them Up

 
  Using Doubles Facts for Solving Subtraction
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Using Doubles Facts for Solving Subtraction

Unit 11: Subtraction Strategies
Lesson 4 of 7

Objective: SWBAT use doubles addition facts to solve subtraction within 20 problems.

Big Idea: I have been teaching my students many strategies to solve subtraction equations. They have learned the inverse relationship between addition and subtraction. Now I want them to see that relationship between doubles facts.

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Standards:
Subject(s):
Math, inverse relationship, Number Sense and Operations, addition, subtraction, doubles facts, Operations
  35 minutes
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