Pete is an artist. He likes to design art using these shapes. Look at these shapes. What do they all have in common?
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Did you notice that all of these shapes have straight sides. These shapes also have angles.
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Did you also notice that these shapes are also closed shapes? That means that their beginning and ending points meet.
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Look at the figures on the next screen. Decide if they are closed figures or open figures. Click on all objects that are closed figures. Remember that closed figures have a beginning and an ending point that meet.

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Select the Polygons

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Shapes that have straight sides, angles, and that are closed, are called polygons.
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This shape is a polygon. It is called a triangle. It has 3 straight sides and 3 angles. The shape is closed.

Click on all triangles.

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A square is a polygon that has 4 straight sides that are all the same length. A square also has 4 angles that are all the same size.

Click on all squares.

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A rectangle is a polygon that has 4 straight sides and 4 angles. The two sides opposite each other are the same length.

Click on all rectangles.

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A pentagon is a polygon that has 5 sides and 5 angles.

Click on all pentagons.

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A hexagon is a polygon that has 6 sides and 6 angles.

Click on all hexagons.

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Can a circle be a polygon?

Answer yes or no and then explain your answer in the box.

Yes No

Remember what you have learned about polygons.

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Now that you know that a polygon is a closed figure with straight sides and angles see if you can identify the shapes in the everyday objects on the next screen.
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Select the letter that goes with the shape.
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Now that you have helped Pete understand what polygons are and their names, get a piece of paper and draw a picture using only the polygon shapes you have just learned about. Label all of the different shapes you use in your drawing. Include a triangle, a square, a pentagon, a hexagon, and a rectangle.
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