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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