Shapes and Designs was created to help students to:
- Understand some important properties of polygons and recognize polygonal shapes both in and out of the classroom;
- Investigate the symmetries of a shape-rotational or reflectional;
- Estimate the size of any angle using reference to a right angle and other benchmark angles;
- Use an angle ruler for making more accurate angle measurements;
- Explore parallel lines and angles created by lines intersecting parallel lines;
- Find patterns that help determine angle sums of polygons;
- Determine which polygons fit together to cover a flat surface and why;
- Explain the property of triangles that makes them useful as a stable structure for building;
- Reason about and solve problems involving shapes.
