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Angle Theorems

Angle Theorems

Barrie Galpin


Labels Algebra

Traditional angle theorems explored in a far from traditional way!

This activity helps students develop an understanding of the following angle theorems:

  • vertically opposite angles are equal;
  • alternate angles are equal;
  • corresponding angles are equal;
  • interior angles are supplementary.

Students can move lines around the screen and see the way angle measurements change. The document includes instructions and suggestions for students. There are also teacher notes suggesting further ways of developing the ideas in the classroom.

Note: This activity is written for OS v3.2 but is usable with OS v3.0 etc.