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Combinations, Day 2

Unit 2: Working with Numbers, Operations, and Story Problems
Lesson 4 of 11

Objective: SWBAT solve a problem in which the total and one part are known. SWBAT prove that all the combinations of a given sum have been found.

Big Idea: Can they count on? That will be the determined after you interact with students through two engaging unknown addend activities.

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Standards:
Subject(s):
Math, Number Sense and Operations, Operations , 1st Grade, Counting on, Finding Combinations, word problems
  65 minutes
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