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Posts tagged with test scores

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 […]

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Failing Math Standards

December6

This just in from my newsfeed, “WASHINGTON (AP) American students have a math problem. The latest global snapshot of student performance shows declining math scores in the U.S. and stagnant performance in science and reading. Education Secretary John B. King Jr. says this country is losing ground and he finds that to be a troubling […]

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The leaning power of PISA

May12

When I was at university one of our senior lecturers was a widely recognized Coastal Geomorphologist. In other words, he was an expert on coastal landforms. I don’t remember anything he taught but I do remember vividly a story he told – which in itself is food for thought for how we teach Mathematics? The […]

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Post Support

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)?]

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