*Contributor: Samantha Penna. Lesson ID: 11160*

Have you ever seen an Egyptian pyramid, or light go through a prism to make a rainbow? Do you have a toybox? Those are all examples of three-dimensional shapes! Make some with straws and mini-mallows!

categories

subject

Math

learning style

Visual

personality style

Lion, Beaver

Grade Level

Primary (K-2)

Lesson Type

Quick Query

In this lesson, you will learn about three-dimensional shapes. Look at the pictures below.

- Can you name the shapes of any of the pictures? Tell a parent or teacher what shapes you see below.

By the end of this lesson, you will know all about the different three-dimensional shapes!

Let's jump right in and start learning about three-dimensional shapes!

*Three-dimensional* shapes have three dimensions: *length*, *width*, and *height*. Three-dimensional shapes are not flat. You can hold a three-dimensional shape in your hand because it is *solid*.

The first shape you will learn about today is a *cube*. A cube is a three-dimensional shape. Can you count the number of squares on one of the cubes below? How many did you count? Tell an adult. If you counted *six* equal squares, you are correct! Each square is called a *face*. A cube has six faces. Try finding an object that is shaped like a cube in your learning space. Did you find a cube? Does it have six square faces? Fantastic!

The next three-dimensional shape you are going to learn about is a *pyramid*. Count the number of faces on the pyramid below. How many faces did you count? Tell an adult. If you said *four* faces, you are correct! A pyramid has three triangle faces and one square face.

A *rectangular prism* is a three-dimensional shape. How many faces are on a rectangular prism? Tell an adult. Did you answer *six*? Great! A rectangular prism has six faces. A rectangular prism is similar to a cube because they both have the same number of faces.

What do you notice is *different* about the rectangular prism? Tell an adult your answer. Did you say that some of the faces on the rectangular prism are longer than the faces on the cube? Excellent! A cube has six equal square faces. A rectangular prism has some faces that are rectangular.

The last three-dimensional shape you will learn about in this lesson is the *triangular prism*. How many faces does a triangular prism have? Tell an adult your answer. Did you say *five* faces? Great job! A triangular prism has bases that are triangles.

Move on to the next section to learn more about cubes, pyramids, rectangular prisms, and triangular prisms.

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