## Decomposition of Mixed Numbers Addition and Subtraction Teacher Notebook File - Section 3: Whole Group Instruction: Core Lesson

Decomposition of Mixed Numbers Addition and Subtraction Teacher Notebook File

# Using Decomposition As a Tool to Prove The Why Behind Simplifying

Unit 7: Fractions 2: Addition and Subtraction Concepts/ Mini unit
Lesson 2 of 8

## Big Idea: This introductory lesson to decomposition of fractions is a straightforward whole group instruction that teaches students the "why" behind the decomposition of fractions in addition and subtraction of mixed numbers.

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Standards:
Subject(s):
Math, Number Sense and Operations, Fractions, Decomposition of Fractions
45 minutes

### Mary Ellen Kanthack

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