SESSION FOUR: 26TH SEPTEMBER 2013, THURSDAY

FOURTH LESSON WITH DR. YEAP TODAY~

Today’s agenda: fractions, multiplications and polygons

After doing problem 13 and 14, we discovered that “9” is a magical number!!

Some tricks for doing multiplications of 9…

 

Ever wonder why it only happens to “9”?? Let’s think about it…

PROBLEM OF THE DAY

Problem 17: Making polygons using geo board.

Joining dots on the geo board with straight lines to form different polygons, what are the different polygons that you can make?

We tried making different kinds of polygons with only 1 dot in the middle. There were small polygons and big polygons. Then we compared it to the small square and find out the area of the polygon that we have made.

I had fun trying out different ways to form polygons with 1 dot inside and tried to form the biggest polygon that I can make and it was 12 times of the square. The smallest one that I made was 2 times of the square. BUT one of our classmates managed to create a polygon that was only 1½ times of the square!

QUOTE OF THE DAY…

“Mathematics is an excellent vehicle for the development and improvement of a person’s intellectual competencies.”

That’s all for today’s lesson.