Angles in Context

How do we help kids recognize angles in various contexts?

  • hands of a clock
  • turning of a doorknob
  • rotation of the moon around the earth
  • slice of pizza
  • internal angles of a polygon

 

See pages 322-329 in Freudenthal, H. (1983). Didactical Phenomenology of Mathematical Structures. Dordrecht, Holland: D. Reidel Publishing Company.