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Teaching with Technology - Resource Description

Cynthia Lanius: School Bus Geometry


ASE: High School Diploma

Example Web Site and/or Technical Equipment Required

http://math.rice.edu/~lanius/Geom/schbus1.html new window
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 external link opens new browser window or tab. Be sure to review all three sections.
  3. Gather some graph paper for part two or use the link, square grid paper external link opens new browser window or tab, 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 external link opens new browser window or tab and you can find them on her home page.



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