Maths, E-portfolio Sample
- Use two different strategies to solve the following problem:
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?
Strategy One is called Tidy number Answer:25
69+1=70+24=94 24+1=25 and 70-1=69 so 69+25=94
Strategy Two is called place value Answer: 25
90-60=30 9-4=5 30-5=25
The KNOWLEDGE I needed to solve this problem include
The knowledge I needed to know is Place value and knowing how to figure out the difference between large numbers.
- 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?
Strategy One is called Tidy number Answer: 144
9 tidy to 10 10 x 16=160- 16=144
Strategy Two is called Place Value Answer: 144
9x10=90 9x6 =54
9x10=90 9x6 =54
The KNOWLEDGE I needed to solve this problem includes
The two knowledge's I need to know is simple 10 times tables and simple subtraction- 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?
Strategy One is called doubling and doubling Answer: 3
24 x 2 =48 8 x 2 =16| 16+16+16 =48
Strategy Two is called halving and halving Answer: 3
24÷2=12 8÷2 =4| 4+4+4=12
The KNOWLEDGE I needed to solve this problem included
knowing simple fractions and adding