## Welcome to H3 Maths

Blog Support for Growing Mathematicians

### Why do some students find Math difficult?

December23

“It’s not yours to reason why, just learn to multiply”. Too often, as students (or even as adults) we simply do our Mathematics by learning a rule, rather than finding out why a certain rule works! Then, when we forget the rule, we give up. That is not good Mathematics (unless we have a great memory)!!

“Understanding the math is critical. Once students realize they can do the math, the whole notion of math anxiety can be overcome. Teachers and parents have an important role to ensure students understand the math being presented to them.” Read more here.

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#### Post Support

The graph on the left (Coronavirus) is for a time period of 30 days, while the one on the right (SARS) is for 8 months! Very poor graphical comparison and hardly relevant, unless it is attempting to downplay the seriousness of the coronavirus?

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)?]