Lesson 2
Naming the Moves
Problem 1
Each of the six cards shows a shape.
![6 panels each showing the one of three different figures in different positions and orientations.](https://staging-cms-im.s3.amazonaws.com/FgwTRVKgxqEpiyEPbW1sULLt?response-content-disposition=inline%3B%20filename%3D%228-8.1.A.PP.Image.0005.png%22%3B%20filename%2A%3DUTF-8%27%278-8.1.A.PP.Image.0005.png&response-content-type=image%2Fpng&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAXQCCIHWF37H2AMFB%2F20240703%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20240703T073123Z&X-Amz-Expires=604800&X-Amz-SignedHeaders=host&X-Amz-Signature=a882d3fa83be70b0c4035ba95d38717b4a483d43f6f5b2d6ae94fd6262560ed8)
- 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?
Solution
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Problem 2
The five frames show a shape's different positions.
![5 panels showing the same figure in different positions and orientations.](https://staging-cms-im.s3.amazonaws.com/xHJ88MokH9cUEYscp4QtjQui?response-content-disposition=inline%3B%20filename%3D%228-8.1.A.PP.Image.0004.png%22%3B%20filename%2A%3DUTF-8%27%278-8.1.A.PP.Image.0004.png&response-content-type=image%2Fpng&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAXQCCIHWF37H2AMFB%2F20240703%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20240703T073123Z&X-Amz-Expires=604800&X-Amz-SignedHeaders=host&X-Amz-Signature=105927ab1db676a0ab2920a839bfe050c1b71a08f56e5345103b2020e306295b)
Describe how the shape moves to get from its position in each frame to the next.
Solution
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Problem 3
The rectangle seen in Frame 1 is rotated to a new position, seen in Frame 2.
![A figure of rectangular Frame 1 and Frame 2, each with a rectangle.](https://staging-cms-im.s3.amazonaws.com/PEKMuaBbfRHBnaaF1Q44gVUo?response-content-disposition=inline%3B%20filename%3D%228-8.1.A1.newPP.03.png%22%3B%20filename%2A%3DUTF-8%27%278-8.1.A1.newPP.03.png&response-content-type=image%2Fpng&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAXQCCIHWF37H2AMFB%2F20240703%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20240703T073123Z&X-Amz-Expires=604800&X-Amz-SignedHeaders=host&X-Amz-Signature=996af6b69d9bedeff93d383f4f4a4b74d42d00b9198f5f06ccfba6a1171674e5)
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
140 degrees counterclockwise
Solution
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(From Unit 1, Lesson 1.)