## Reflection: Lesson Planning Using Models to Add and Subtract - Section 3: Closing

Now that I have introduced several different models for addition and subtraction, I will want to plan lessons to incorporate the use of these models. I don't want students to think that we do things once and then don't use them again as math tools. I will continue to reinforce the use of models for solving problems to help move students forward in visualizing various ways to approach a problem.

Lesson planning, for me, has to take into account where we are and where we have been. Lessons build one upon the other and making the connections from one to the other has to be something that I do deliberately, and let students know I am doing that. It is my job to build the bridge, or scaffold from what they have already seen, to new or similar material.

Using Various Models
Lesson Planning: Using Various Models

# Using Models to Add and Subtract

Unit 17: Getting Better at Addition and Subtraction
Lesson 4 of 12

## Big Idea: Common Core standards encourage the use of models to build understanding in math. This lesson shows sometimes reluctant 2nd graders that models are helpful tools in solving mathematical problems.

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Standards:
Subject(s):
Math, modeling, Number Sense and Operations, addition, manipulatives, Operations
40 minutes

### Beth McKenna

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