1. Rotations

2. Key Idea
A point or a shape can be rotated about a fixed point.

3. Examples

4. The shape can also be located on the point

5. Checking for Understanding
Describe the following as: translation, reflection, or rotation.

12. Describing Rotations
Clockwise Counterclockwise

13. Describing Rotations The blue arrow is the initial position
The red arrow is the result of a rotation
90 degrees clockwise
180 degrees clockwise
270 degrees clockwise
360 or 0 degrees clockwise

14. The blue arrow is the initial position
The red arrow is the result of a rotation
90 degrees clockwise
270 degrees counterclockwise
180 degrees clockwise
180 degrees counterclockwise
270 degrees clockwise
90 degrees counterclockwise
360 or 0 degrees clockwise
360 or 0 degrees counterclockwise

15. Describe the rotation

26. Rotation of Shapes Activity
Cut out your shapes

27. Write the coordinate points of the original shape
Write the coordinate points of the original shape. Translate the shape (x – 6, y – 3). Record the new coordinates A B C

28. Write the coordinate points of the original shape
Write the coordinate points of the original shape. Reflect the shape over the x axis. Record the new coordinates A B C

29. Write the coordinate points of the original shape
Write the coordinate points of the original shape. Reflect the shape over the y axis. Record the new coordinates A B C

30. Write the coordinate points of the original shape
Write the coordinate points of the original shape. Rotate the shape 90 degrees clockwise. Record the new coordinates A B C

31. Write the coordinate points of the original shape
Write the coordinate points of the original shape. Rotate the shape 180 degrees clockwise. Record the new coordinates C A B

32. Write the coordinate points of the original shape
Write the coordinate points of the original shape. Rotate the shape 90 degrees counter clockwise. Record the new coordinates A B C D

33. Write the coordinate points of the original shape
Write the coordinate points of the original shape. Rotate the shape 90 degrees counter clockwise. Record the new coordinates D C A B

34. What do you notice about the new coordinates of your rotated shapes?

35. Theif!

36. A B C D
Rotate 90 degrees clockwise

37. B A C
Rotate 90 degrees counterclockwise

38. A B
Rotate 180 degrees counterclockwise C

39. Closure
How is a rotation different from a translation?

40. Closure
Clockwise or counterclockwise?