*Contributor: Samantha Penna. Lesson ID: 11822*

Are you symmetrical? That is not a question you are asked very often! Symmetry is something you probably see every day in butterflies and cars! Practice online, and paint your own symmetrical artwork!

categories

subject

Math

learning style

Visual

personality style

Lion

Grade Level

Primary (K-2)

Lesson Type

Quick Query

As you *reflect* on the picture above, does anything jump out at you? I don't mean a fish from the lake, but something that looks *symmetrical*? Read on to learn about *symmetry*!

Take a sheet of paper and hold it horizontally.

Fold this paper in half (hamburger style). Did all the corners line up neatly? Did it fold perfectly? If so, your paper has *symmetry*! If you can fold an object in half and all the parts line up perfectly, the object has *symmetry*. For example, the butterfly below has symmetry. If you were to fold this butterfly in half, the wings, body, and antennae would line up perfectly:

Look at the objects below. All of these objects have *lines of symmetry*.

A *line of symmetry* is an imaginary center line where, if you folded it on that line and made that the crease, your object would be folded perfectly in half. Folding a symmetrical object along the line of symmetry would allow all of the edges to line up with each other.

Some objects have *multiple lines of symmetry*. For example, look at the square below. The square has four lines of symmetry. If you were to fold on any of those lines, the square would fold perfectly in half. Some objects only have one line of symmetry. The x shape below only has one line of symmetry. How many lines of symmetry does the blob under the square have? Can you find the line of symmetry on the last object?

^{Image by Dbc334, via Wikimedia Commons, was released into the public domain.}

Watch *Intro to Symmetry: All About Symmetry for Kids - FreeSchool* (FreeSchool, below) to learn more about symmetry. While watching the video, tell your parent or teacher which objects have symmetry and which objects do not have symmetry:

After watching the video, move on to the *Got It?* section to practice identifying symmetrical objects and lines of symmetry.

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