Combine and Compare Me, Using A Known Fact.MOV - Section 3: Center Time

  Combine and Compare Me, Using A Known Fact.MOV
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Assessment of Comparing Games

Unit 4: Blending
Lesson 6 of 7

Objective: SWBAT see that adding the same two numbers results in the same total, regardless of context (i.e. cubes, cards, objects) and using a strategy find the total of two quantities up to 20.

Big Idea: Why do 3 cubes + 4 cubes = the same amount as 3 dots + 4 dots? Through the explanation and discussion of their addition strategies, students will explain why this is true.

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Math, Number Sense and Operations, Operations , 1st Grade, addition, Counting on, Counting All, Using Known Facts
  70 minutes
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