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Using Tools to Construct Tangents to a Circle

Back to school...

  1. Use the Navigation Bar in the figure below to review the construction process of tangents to a circle.
  2. Try to create this construction on your own using the DIY-applet.
  3. Write down a construction protocol and explain every construction step.

Tangents to a circle construction

Try it yourself...

Suggestions for discussion

  • Which Tools did you use in order to recreate the construction?
  • Were there any new Tools involved in the suggested construction steps? If yes, how did you find out how to operate the new Tool?
  • Did you notice anything about the Toolbar displayed in the DIY-applet?
  • Do you think your students could work with such a Dynamic Worksheet and find out about construction steps on their own?