Basics
Translations
Application
100

A closed shape made of straight lines, that has corners (vertex).

What is a polygon?

100
Moving the shape in a circular motion.

What is rotation?

100

Regular polygons such as square, triangle and hexagon can only form these puzzles. 

What are the only shapes to make tessellations? 

200

For these polygons, all sides are equal.

What is a regular polygon?

200

The point where a shape is rotated.

What is the point of rotation?

200

It means "many corners" in greek.

What is a polygon?

300

For these polygons, not all sides are equal.

What is an irregular polygon?

300

Shifting a shape up, down, left and right. 

What is translation?

300

They all add up to 180 degrees in a polygon.

What is an angle?

400

Another name for corner.

What is a vertex?

400

The mirror-image of a shape.

What is reflection?

400

Equal sides=different angles

Unequal sides=same angles

What are the rules of irregular polygons?

500

When a shape stays the same when flipped, rotated, or reflected.

What is congruency?

500

The line where a shape is reflected to create a mirror-image.

What is the line of reflection?

500
When shapes are put in a pattern to create a puzzle with no gaps, or overlap. 

What are tesselations?

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