Maths, E-portfolio Sample
To get a ‘Great Achievement” award, Rob needs to swim 94 lengths of the swimming pool. If he has already swum 69 lengths,
how many more lengths of the swimming pool does he need to swim to get his award?
how many more lengths of the swimming pool does he need to swim to get his award?
Strategy One is called tidy number.
94 - 4=90 90-20=70 70-1=69 0+4+20+1=25 Answer: 25
94 - 4=90 90-20=70 70-1=69 0+4+20+1=25 Answer: 25
Strategy Two is called Place Value. Answer:25
34-9=25
The KNOWLEDGE I needed to solve this problem include basic facts.
- Use two different strategies to solve the following problem:
A netball team enters a tournament. The tournament costs $16 per person. If there are 9 people in the team, how much will the
team pay in total?
team pay in total?
Strategy One is called Place Value. Answer: $144
9x10=909x6=54
90+54=144
Strategy Two is called Tidy number. Answer: $144
160-16=144
The KNOWLEDGE I needed to solve this problem included using times tables that has 10 in the equation.
- Use two different strategies to solve the following problem:
Ye Lin is helping clean up her local beach. She and her classmates collect 24 bags of rubbish in total. 8 of the bags are filled
with only plastic. What fraction of the total number of filled bags is this?
with only plastic. What fraction of the total number of filled bags is this?
Strategy One is called prior knowledge. Answer: 1/3
Strategy Two is called using division. Answer: 1/3
The KNOWLEDGE I needed to solve this problem included using division.



