Addition and Subtraction

My thoughts........

Lesson 14 was very fascinating. The number which I chose was 5 and 8. Dr Yeap instructed us to add the 2 numbers which totals to 13. Then we have to join the 2 numbers together which is 58. Lastly, subtract the 2 numbers together and the difference is 45. I was pretty surprised that Dr Yeap was able find out the difference without knowing my second number. Later of which the class discussed that we can get the difference by multiplying the first number by 9.

We also discussed about the different qualities if a word problem.

Continuous quantities----------can’t be represent them 1 by 1

discreet qualities-----------------can be represent 1 by 1

I also learnt that children should be exposed to different variations of the problem as they provide a challenge to these children. Instead of just sticking on to that problem, children should be given more opportunities to explore the same problem in different variations.  For the example, the numbers of the word problem can be changed.

I also learned that, it’s important to keep the materials for counting as constant, For example, we cannot count pencils and erasers together. It will be confusing for children.