Maths, E-portfolio Sample, Term 4 2018

By Anonymous -
Maths, E-portfolio Sample
  1. 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 numbers.                                                Answer: 25
69 + 1 = 70 + ___ = 94


Strategy Two is called reversability.                                                    Answer: 25
94 - ___ = 69


The KNOWLEDGE I needed to solve this problem included being able to add and subtract confidently and knowing how to do the strategies. It also included being able to know where you have to flip it around for reversability.
  1. 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 place value                                                     Answer: 144
10 x 9 = 90 + 6 x 9 = 54 + 90 = 144


Strategy Two is called tidy numbers                                                     Answer: 144
9 x 20 = 180 - (4 x 9 ) = 144


The KNOWLEDGE I needed to solve this problem included knowing your times tables and being able to add and subtract confidently.

  1. 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 prior knowledge                                                     Answer: 3/24 or 1/8
24 divided by 8 = 3 so 3/24


Strategy Two is called family of facts                                                     Answer: 3/24 or 1/8
8 x __ = 24 = 3 so 3/24


The KNOWLEDGE I needed to solve this problem included knowing the different family of facts and how to use them.



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