Module 2 Lesson 1--Why Things Move Around

Module 2 Lesson 1--Why Things Move Around

by Tiffany Weekly

Which basic rigid motion is happening in this image?

Multiple Select

When a figure is translated in the coordinate plane, the following statements are TRUE (click the image to enlarge it):

• The angles may get smaller or larger.

• The line segments may get smaller or larger.

• The orientation of the figure changes.

• The size of the figure remains the same.

Which basic rigid motion is happening in this image?

Multiple Select

When a figure is reflected in the coordinate plane, the following statements are TRUE (click the image to enlarge it):

• The angles may get smaller or larger.

• The line segments may get smaller or larger.

• The orientation of the figure changes.

• The size of the figure remains the same.

Which transformation is happening in this image?

Multiple Select

When a figure is rotated in the coordinate plane, the following statements are TRUE (click the image to enlarge it):

• The angles may get smaller or larger.

• The line segments may get smaller or larger.

• The orientation of the figure changes.

• The size of the figure remains the same.

Basic rigid motions

• Include tranlsations, reflections, and rotations

• Preserve angle measures

• Preserve line length

  Conclusion: Whether figures are translated, reflected or rotated, , theimage will be congruent to the pre-imageMEANING: all segments stay the same length and all angles stay the same degrees.

• ​Basic Rigid Motions are used to PROVE congruence.

Multiple Choice

Does this image show a figure undergoing a basic rigid motion?

Click the image to enlarge it.

• Yes

• No

Multiple Choice

What transformation?

• Translation

• Rotation

• Reflection

• Dilation

Multiple Choice

Does this image show a figure undergoing a basic rigid motion?

Click the image to enlarge it.

• Yes

• No

Multiple Choice

What transformation?

• Translation

• Reflection

• Rotation

• Dilation

Multiple Choice

Does this image show a figure undergoing a basic rigid motion?

Click the image to enlarge it.

• Yes

• No

Multiple Choice

What transformation?

• Translation

• Rotation

• Reflection

• Dilation

Multiple Choice

Does this image show a figure undergoing a basic rigid motion?

Click the image to enlarge it.

• Yes

• No

Multiple Choice

What transformation?

• Translation

• Rotation

• Reflection

• Dilation

Multiple Choice

Does this image show a figure undergoing a basic rigid motion?

Click the image to enlarge it.

• Yes

• No

Multiple Choice

What Transformation?

• Transformation

• Rotation

• Reflection

• Dilation

Multiple Choice

Which is the only transformation that changes a shapes size?

• Translatoin

• Rotation

• Reflection

• Dilation

Poll

Which figure is the preimage and how do you know?

• Green, because it is most to the left

• Blue, because it is the smallest

• Orange, because it has prime markers on the corners.

• Blue because the corners are marked EFGH (no prime markers)

Multiple Choice

After a figure has been transformed, we call the new figure the...

• Image

• Different shape

• Figure that moved

• Prime

Multiple Choice

What color is the preimage in the diagram?

• red

• blue

Multiple Choice

What color is the image in the diagram?

• red

• blue