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Inside Teaching : August 2010
www.atra.edu.au | email@example.com CURRICULUM & ASSESSMENT 35 method if mathematical numeracy is being used. By visualising these numbers on an unmarked number line, as above, and knowing that the correct response must be a number that can be representative of the fve numbers, students would be able to estimate the correct response is between 50 and 55. Since there’s only one option, 52, alongside the three distracters, 52 must be correct. Signifcantly, because the students are given four numbers to choose from, an estimation is all that’s required. Unfortunately, though, we’re unable to determine whether the 59 per 2011 School diaries from $3.75 GST inc. Call us on 03 9338 5662 for a free sample, quote and catalogue View online www.createl.com.au/student-diaries.html ➛ cent of students who selected the correct response did so as a result of this deep understanding and visualisation or by using an algorithm. I suspect that most of the 59 per cent used a standard algorithm, but the NAPLAN numeracy test simply doesn’t tell us. Using NAPLAN data, we simply don’t know the numerate capabilities of Australia’s students regarding their choices of method and the appropriateness of the choices for the context.