doubles +_ 1 problems.doc - Section 3: Independent Practice

 
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  doubles +_ 1 problems.doc
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Doubles Plus or Minus One

Unit 2: Adding and Subtracting the Basics
Lesson 9 of 18

Objective: SWBAT use what they know of doubles and partners of ten to add or subtract numbers that are one more or one less

Big Idea: One of the Four Critical Areas of 2nd grade math is the application of understanding of models for addition and subtraction. An efficient way to do this is to develop strategies built on what students know.

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