2-D Shapes: Lesson for Kids

Instructor: Audrey Akins

Audrey has more than a decade of experience teaching elementary. She has a bachelor's in journalism and a master's in education.

What do rectangles, triangles and circles have in common? They're two-dimensional shapes! In this lesson, you'll learn what 2D shapes are and how to identify them.

What Are 2D Shapes?

Two-dimensional shapes, also known as 2D shapes, are simple figures which have height and width but no depth. They are made with straight sides and corners or curved lines. You can count the number of sides and corners to determine the type of 2D shapes that you see. For example, if you see a car on the street, you'll notice it has a wheel with 0 sides and 0 corners and just one continuous curved line - the 2D shape of a circle.

Vivid Shapes

Let's say that you and your family go to the circus. You see a stop sign by the entrance of the parking lot. It has 8 sides and 8 corners - the 2D shape of an octagon. On top of the circus tent, you notice a flag whipping in the wind. It has 3 sides and 3 corners - the shape of a triangle.

2D Shapes
two dimensional shapes

Magical Shapes

You and your family find your seats in the circus tent. You're so excited! The lights dim. A spotlight shines on the circus master. He welcomes you to the circus. An elephant raises its trunk to welcome you too!

A magician begins the show with a trick. He has a fish bowl that he sits on a table. It has 6 sides and 6 corners - the shape of a hexagon. There's a fish in the bowl but when the magician snaps his fingers, there's a puff of smoke and the fish disappears!

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