Saturday, October 26, 2013


Today is the fifth lesson with Dr. Yeap.

We played with Tangrams today again! Instead of using the tangrams to form rectangles, we formed squares today. So, here are some of the ways that we can form squares with tangrams.

We tried using from 1 piece to all 7 pieces to form the square. However, my group somehow could not figure out how to form with 5 & 6 pieces.

Tangrams are very interesting materials that we can provide for children to explore and play with. I feel that it stretches the children’s thinking to find out the different ways to form a shape or use them to form different figures like this.

Another interesting problem that we were given to think about today is:
Way to prove that the sum of the interior angles of a triangle is 180©:

A brilliant way thought by Rowenna; cut out a random triangle, then cut out all the angles and fix them together. The angles will eventually form a straight line and angles on a straight line sum up to 180©.

That's all for today. 
Tomorrow’s the last lesson~~ 

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