Reflection: High Expectations Decomposing 2 & 3 - Section 2: Guided Practice


Since we are very confused, I am hoping to begin our concept development by teaching a process.  My hope is that by teaching a process, flipping the last counter on the right that remains the original color, we will systematically illustrate all the combinations to show numbers, and eventually get that understanding that accompanies the process.

  Hmm... This is trickier than I realized...
  High Expectations: Hmm... This is trickier than I realized...
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Decomposing 2 & 3

Unit 10: Decomposing Numbers
Lesson 5 of 12

Objective: SWBAT show the different ways to "make" 2 and 3 with 2-colored counterl

Big Idea: Using simple 2-color counters, we will develop a process to decompose 2 & 3.

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