Online Courses

Geometry Transformed!

This five-week course will be offered starting November 7 and go for 5 consecutive Tuesdays, ending on December 5. There is no charge for the course.

This course is for teachers who want to deepen their understanding of transformations in plane geometry and who seek examples of how rigid motions and dilations and their combinations can be presented in the classroom.

The aims for the online course for teachers include these:

  • Insight into the "big picture" and value of basing geometry concepts such as congruence on transformations, as prescribed in the Common Core.
  • Hands-on, detailed exploration of rigid motions and dilations in the plane and their compositions.
  • Practice with examples of proofs using transformations.
  • Consideration of the role of coordinates.

    Participants in this course will meet in an online classroom for five consecutive Tuesday sessions of 90 minutes, starting November 7 and ending December 5. The starting time for each session will be 8:30 PM Eastern Time (so 7:30 Central, 6:30 Mountain, 5:30 Pacific).

    Preceding each class, participants will be expected to spend a couple of hours working assigned problems and participating in online discussions and reflections. These problems and exchanges will be designed to push one's thinking and generate discussion for the upcoming class.

    PCMI alumni are welcome to apply, but since this is an outreach activity, they should sign up as a team with one or more non-PCMI colleagues. There is no charge for the course.

    View the course description.

    Access the course application.