Background for Teachers
To teach this lesson, you will need an understanding of geometric transformations, specifically rotations and reflections. For example:
- Squares have both rotational (90o, 180o, 270o) and reflectional symmetries (vertical, horizontal, and diagonal).
Here are some helpful YouTube videos:
Here is an interactive webpage that rotates various shapes to set degrees (please note: the rotations here are counterclockwise, where the rotations in the notes and assignment are clockwise).
There are also two copies of the notes and assignment. One is a student version, and the other is the teacher version which includes the answers.