Introduction to Rotations

Lesson 6.3 Rotations

by Reed Carbone

​Definitions

​Rotation: A rotation is a transformation that turns a figure around a fixed point called the center of rotation.

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​Angle of Rotation: This is the measurement of the number of degrees the figure rotates. We will rotate 90, 180, 270 and 360 degrees counter clockwise. (Note: if the number is negative your figure will rotate clockwise.)

​Visual:

​Here is what a rotation will look like:

Video​

https://www.youtube.com/watch?v=NhtTKhP3d6s​

Multiple Choice

This figure is rotated about what point?

• (2,5)

• (0,0)

• (-3,2)

• (-6,-3)

​What would be the coordinate of the image after 90 and 270 degree rotations?

Multiple Choice

This figure was rotated how many degrees?

• 90

• 180

• 270

• 360

Multiple Choice

This figure was rotated how many degrees?

• 90

• 180

• 270

• 360

Open Ended

Conclusion: what did we learn today?