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%
responses
|
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|
y4
|
y8
|
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| Questions/instructions: Give student “broken” ruler. In this activity you will be measuring two different things — a piece of cardboard and a piece of ribbon. The piece of ruler has been broken, but never mind. It can still be used for measuring. |
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| Give
student piece of cardboard. 1. How many centimetres wide is the cardboard? |
11.5
– 12.5
|
30
|
64
|
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| Give
student a piece of ribbon. 2. How many centimetres long is the piece of ribbon? |
40
|
23
|
55
|
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|
35–39
or 41–45
|
32
|
27
|
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| Commentary About 30 percent more year 8 than year 4 students managed to measure accurately with the “broken” ruler. |
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