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Cynthia Lanius: School Bus Geometry

Example Web Site and/or Technical Equipment Required


Website Example:

Tech Product Equipment

Computer, Internet access, projector

Activity Description

In this activity, students learn about the Pythagorean Theorem, equation of a circle, and finding midpoints through the analogy a school bus. This is a great activity at the conclusion of a unit on Pythagorean Theorem.


  1. Make sure that the site is not blocked at your school.
  2. There are three parts to this Lesson Plan . Be sure to review all three sections.
  3. Gather some graph paper for part two or use the link, square grid paper , at the top of the page to print some out.


  1. Teach a unit on Pythagorean Theorem.
  2. Introduce the activity and project it on a screen.
  3. Discuss the problem
  4. Have students mark all points of the grid that are 4 blocks away from Point A.
  5. Discuss the definition of a circle and the Algebra Connection.
  6. Give students time the work the two Challenge Questions.
  7. Discuss and check answers.
  8. Introduce "Meet You Half-Way"
  9. Give students time to mark the midpoint on their grid.
  10. Discuss and check answers.

More Ways

  • On this page you will find activities for middle or high school geometry. Included activities cover Hidden Irrationals, Hidden Polygons, Isosceles Triangles, Pythagorean Theory, Golden Ratio, and Cylinder Volume.
  • Check the "Impossible Triangles" link. The exercise is useful for high school equivalency students as it reviews triangle rules. There is also material to study the Pythagorean theorem.
  • This instructor has created many more math activities ¬†and you can find them on her home page.

Select subjects and subcategories


  • Geometry
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OTAN activities are funded by contract CN200091-A2 from the Adult Education Office, in the Career & College Transition Division, California Department of Education, with funds provided through Federal P.L., 105-220, Section 223. However, OTAN content does not necessarily reflect the position of that department or the U.S. Department of Education.