Friday, September 27, 2013

Sum of interior angles of a triangle is 180



A hands-on activity was conducted with 8th graders (CIE) to understand that the sum of the angles of a triangle is 180 degrees. Students were given cut outs of a triangle. They were asked to label the angles. They then tore off the corners and placed the torn pieces in a vertical line such that the vertices met. This was the 'aha' moment where the students saw that the three angles put together aligns with a line and forms 180 degrees.

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