Geometry

Duane Habecker, Giselle Kyriacou, 2015/03/04

A series of applets about lines and angles for 10 to 12 year old students.


  • 1. Basic Geometric Objects and definitions
  • 2. Types of angles
  • 3. Animated acute angles
  • 4. Animated view of right angles.
  • 5. Animated view of obtuse angles.
  • 6. Animated view of straight angles.
  • 7. Animated view of reflex angles.
  • 8. Protractor Practice (Random)
  • 9. Sum of angles in polygons
  • 10. Angles in a 5-pointed star
  • 11. Sum of interior angles in a triangle
  • 12. Sum of the angles in a triangle
  • 13. Missing angle in a triangle
  • 14. Definition of complementary angles
  • 15. Missing complementary angle
  • 16. Supplementary angles
  • 17. Missing supplementary angle
  • 18. Vertical angles
  • 19. Triangle on a line with missing angles
  • 20. Angles on a line

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Basic Geometric Objects and definitions

This applet is a simple display of some common geometric objects our 10-year olds will be using.
– Duane Habecker

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情報