## Sunday, April 5, 2009

### A Nine-Year Old Likes Model Method

I am 9 years old and I live and go to school in Jakarta. I like solving maths word problem by the model method. I go to school that teach maths in the Indonesian language. My mother bought me some Singapore maths book two months ago. I like the model methods that are given in the books. My teacher has never taught maths using the model method. My English is not so good so I must look up a dictionary for difficult words. Can I ask you for help if I find some word ptoblems difficult?
Jane, a nine-year old in Jakarta
If Jane pose some questions that she finds difficult, I will share it here. But here is one that comes from a school in Singapore. Try it!
88 children took part in a swimming competition. 1/3 of the boys and 3/7 of the girls wore swimming goggles. Altogether 34 children wore swimming goggles. How many girls wore swimming goggles on that day?

#### 1 comment:

1. No of boys wear glasses = 1u
No of boys did not wear glasses= 2u
Total number of boys = 3u

No of girl wear glasses = 3p
No of girls did not wear glasses= 4p
Total number of girls = 7p

1u+3p=34
3u+9p=102
3u+7p=88

2p= 102-88=14
1p=2
3p=6