Triangles

What is a triangle?  What's the difference between a right triangle and an equilateral triangle?

Symmetry

What is symmetry and what does it mean for something to be symmetrical?

Rays, Lines, and Line Segments

What is a ray?  What is a line?  What is a line segment?

 



 

Quadrilaterals

What is a quadrilateral?

 

Angles & Turns

What does it mean when an angle does a quarter turn clockwise?  How about a half turn counter clockwise?



 

Polygons

Are circles polygons?  What makes a shape a polygon?

 



 

Prisms

What are prisms?  How are they different from other shapes?