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Lesson: Thirds Mathematics • 2nd Grade

In this lesson, we will learn how to divide shapes into three equal parts, name each part as a third, and tell the number of thirds in a whole.

Lesson Plan

Students will be able to

divide circles, squares, and rectangles into three equal parts and identify each part as a third,
tell how many thirds make a whole,
understand that decomposing circles, squares, and rectangles into thirds makes smaller shares.

Q1:

This circle is divided into 3 equal pieces.

What is the name for each piece?

Q2:

Pick the rectangle that is partitioned into thirds.

Q3:

Liam has two thirds of an orange.

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