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Posts tagged with I can’t do math

Math Trauma in Teachers and Parents

December10

“Maths trauma in teachers and parents contributes to the difficulty in learning and teaching mathematics. It is estimated that one third of primary school teachers suffer from “Math Trauma”. It is NOT their fault. When I was in primary school in the sixties, I was in the first cohort to use the textbooks adapted from […]

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Learning Math by Doing Math…

July16

It is absolutely, 100% wrong to suggest that you simply “Can’t do math” – unless, of course, you have sustained a brain injury. Even then, the brain is a most remarkable organ that is capable of growth and change, especially in young students. Take the example of Cameron Mott, a young girl who had half […]

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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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