Reflection: Modeling Part-Part-Whole Addition - Section 1: Warm-Up


My students have really struggled with problems where the sum, or total, is known and 1 part of the problem is known (change unknown). I wanted to give them a visual problem solving strategy that might help them "see" the missing piece that the problem is asking for.

Because not all students learn in the same way, I make sure that I present another strategy, in addition to the ways we have previously covered. This part/part/whole model seemed to really help my struggling as well as my ELL students, who often rely heavily on picture models.

  Showing it another way
  Modeling: Showing It Another Way
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Part-Part-Whole Addition

Unit 12: Addition & Subtraction
Lesson 1 of 5

Objective: SWBAT use a part-part-whole model to create word problems and solve them.

Big Idea: Students can break apart problems into picture models that aid in solving.

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