Naming the Moves
Let’s be more precise about describing moves of figures in the plane.
Each of the six cards shows a shape.
- Which pair of cards shows a shape and its image after a rotation?
- Which pair of cards shows a shape and its image after a reflection?
The five frames show a shape's different positions.
Describe how the shape moves to get from its position in each frame to the next.
The rectangle seen in Frame 1 is rotated to a new position, seen in Frame 2.
Select all the ways the rectangle could have been rotated to get from Frame 1 to Frame 2.
40 degrees clockwise
40 degrees counterclockwise
90 degrees clockwise
90 degrees counterclockwise
140 degrees clockwise
F:(From Unit 1, Lesson 1.)
140 degrees counterclockwise