Sunday, August 18, 2013

Find The Angles

Question of the day: How many ways can you find out that the different angles match to 180 degree?
When I was posted this question by Dr Yeap, the only thing that came to my mind was "By using protractor". I couldn't thought of any other ways to measure the different angles. However, 30 brains are better than 1 brain. The class started brainstorming different ways to find out the answer.
  • Use a protractor.
  • Tear out all the angles and put it together in a straight line (Because a straight line represent 180 degree).
  • Identifying alternate angles on parallel lines.

The approaches that the class identified can be classified under the CPA approach.

C - Concrete
P - Pictorial
A - Abstract

Challenge of the Day: Try identifying which method is using the concrete approach and which method is using the abstract approach.

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