Plane Figures

Contributor: Danielle Childers. Lesson ID: 10073

Have you ever been told you not to play with your food? Well, today you can! Get ready to play with your food and create plane shapes!

categories

Geometry

subject
Math
learning style
Kinesthetic, Visual
personality style
Otter
Grade Level
Primary (K-2)
Lesson Type
Quick Query

Lesson Plan - Get It!

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Don't play with your food!

  • How many times have you heard that?

Well, in this lesson, you must play with your food!

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No, not like those girls. You will use marshmallows and toothpicks to learn math!

  • How?

Find out!

  • What is a plane shape?

It's not something that looks like an airplane. It's a shape that has only two dimensions.

A dimension is a measurement, like length, width, thickness, and height. Plane figures have no thickness, They are flat.

Get ready to make some plane figures. (No, they won't fly!)

  1. First, download and print the Shape Sheet from Downloadable Resources in the right-hand sidebar.
  1. Now, gather some gumdrops or marshmallows and toothpicks.
  • What shape can you create with three toothpicks if the ends of the three toothpicks touch?
  • Did you make a triangle?
  1. Putting a marshmallow at each corner, push the toothpicks inside to keep the shape together.

Look at the picture to see what it should look like.

marshmallow triangle

  1. Try now with four toothpicks.

Make sure all the ends of the toothpicks are touching so it is a closed shape.

  • Is the shape a square or diamond?

You can see the difference by looking below.

square and diamond

  1. Try making both the square and the diamond.
  1. Now, just use marshmallows.
  • Can you make a circle?
  • What other shapes can you make?

Be sure that all shapes are closed in, meaning each end of a toothpick is touching another end.

Great work!

  • Do you want to play with your food some more?

Find someone to help you with this next activity!

  1. Put a layer of salt in a pie pan.
  1. Draw different shapes, like triangles, squares, rectangles, diamonds, circles, and ovals, using your finger.
  1. When you are finished, have your partner draw different shapes, and you name them!

When you are done, move to the Got It? section to go on a shape hunt!

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