## Reflection: Developing a Conceptual Understanding Equal Parts - Section 1: Introduction to New Material

Fractions are not a part of the Common Core for second grade. This lesson aligns to 2.G.A.3 in its discussion of equal parts and lends itself to a deeper discussion of fractions in 3rd grade.  I chose to preview fractions at the end of second grade since they are so prevalent in the 3rd grade Common Core standards.  I chose to discuss equal parts in such depth because I want my students to have a deep conceptual understanding of what it means to have equal parts--additionally, this discussion nicely follows our work on partitioning shapes into equal pieces.  This lesson is meant to only start a discussion of what equal parts really means and to push students to think about equal parts beyond our discussion of equal shapes and sizes during our geometry unit.  It is my hope that starting to develop this conceptual understanding in second grade will help my students when they move into a deeper discussion of fractions in third grade.

Why this lesson?
Developing a Conceptual Understanding: Why this lesson?

# Equal Parts

Unit 9: Partitioning Shapes
Lesson 5 of 8

## Big Idea: Students explore how to break a square into equal parts. This is the first lesson in a series of lessons that preview fractions for 3rd grade.

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Subject(s):
Math, Geometry, shapes, partitioning shapes, equal parts
50 minutes

### Caitlin Vaughan

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