## Reflection: Adjustments to Practice Understanding Composing and Decomposing: Day 1 - Section 3: Practicing and Finding Two Ways to Decompose Fractions

Prior to Common Core, we  used to simply teach students to multiply the denominators by the whole numbers and add the numerators without any thought as to why that was done! Thanks to Common Core, things are different and we understand where that concept comes from.How it used to be! explains what I used to do before CCSS.

Adjustments to Practice: How it Used to Be!

# Understanding Composing and Decomposing: Day 1

Unit 7: Fractions 2: Addition and Subtraction Concepts/ Mini unit
Lesson 1 of 8

## Big Idea: Virtual Manipulatives is a dynamite ap that helps students quickly understand the composition and decomposition of fractions. This first day is an introduction and is just the right lesson to get them started at this Common Core Concept!

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2 teachers like this lesson
Standards:
Subject(s):
Math, Fractions, Number Sense and Operations, Decomposition of Fractions
45 minutes

### Mary Ellen Kanthack

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