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### The Leaning Power of Pisa

March18

In the latest international PISA tests, some 500,000 students applied their skills to common tests in order to track their relative academic abilities. Asian countries have topped scorers in maths and science and, in 2015, Singapore became the first nation to top in all three subjects. The three nations that have fallen furthest since Pisa began are all Anglo-Saxon: in order, Britain, Australia and New Zealand. The almost identical tracks of Australia and NZ suggest that there may be common factors driving them both down.The biggest gains, among those who have been in Pisa since it started, have all been in Europe: Luxembourg, Portugal, Poland and Germany. Concerns about the dumbing down of education in places like Australia and New Zealand have recently hit the headlines – as in this article. Some have suggested that the reason for lowered performance from New Zealand is the result of classes being streamed, as in this link. However, some of New Zealand’s most successful academic schools have rigid streaming, so this may not be a major factor? Read more on the PISA results here.

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#### Post Support

10 x 9 x 8 + (7 + 6) x 5 x 4 x (3 + 2) x 1 = 2020

NCEA Level 2 Algebra Problem. Using the information given, the shaded area = 9, that is:
y(y-8) = 9 –> y.y – 8y – 9 =0
–> (y-9)(y+1) = 0, therefore y = 9 (can’t have a distance of – 1 for the other solution for y)
Using the top and bottom of the rectangle,
x = (y-8)(y+2) = (9-8)(9+2) = 11
but, the left side = (x-4) = 11-4 = 7, but rhs = y+? = 9+?, which is greater than the value of the opp. side??
[I think that the left had side was a mistake and should have read (x+4)?]