Lesson: Composing 2D Shapes Elementary School Mathematics Kindergarten • Math in Focus • Singapore Math • Grade 3 • Volume B • Common Core • Math in Focus • Singapore Math • Grade 2 • Volume B • Common Core • Math Connects • Grade 2 • Volume 2 • Student Edition

Mathematics

In this lesson, we will learn how to compose simple 2D shapes to make larger shapes.

Sample Question Videos

Q1:

Which shape has been made using triangles only?

Q2:

Daniel is trying to fit triangles into this hexagon.

How many triangles will he need in total?

Q3:

How many triangles have I used to make this rectangle?

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