7.13The student, given a polygon in the coordinate plane, will represent rotation by graphing the coordinates of the vertices of the transformed polygon and sketching the resulting figure.L

Directions

  • The slider α, alpha, controls the angle of rotation.
  • Change the angle of rotation and see Point A' change. You may also move point A.
  • Can you determine the coordinates of Point A' if you were given the value of the slider alpha and the coordinates of Point A?
  • What is the relationship between the coordinates of A and A'?

Interactive Activities

  • LearnAlberta A basic look at rotations from this site. Very interactive.
  • Activity 1 A teacher led activity using the Shodor interactive site.
  • NLVM Click on Transformation-Rotation to get an interactive activity from Matti.

Investigations

Hands-On Activities

  • With Patty Paper
  • Argyll Draw different shapes and rotate the figures.
  • Matti Under Transformations-Rotation, click on "Geometry 6-8". Here you can create and rotate figures.

Other Web Sites

  • Regentsprep Go to operations and click on "rotation".
  • ExploreLearning Teachers have to assign the Rotations, Reflections and Translations to their classes.
  • Larson´s Software Students need to be enrolled by their teachers. Click on the Coordinate Geometry, then click on Rotation of Points.

Lesson 4-5 Rotation


Read the direction on the right and interact with the GeoGebra object below.
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Created with GeoGebra, Fall 07.