## Welcome to H3 Maths

Blog Support for Growing Mathematicians

## Posts tagged with teachers

### How to fix decline in Math Scores

May5

Recent data released in New Zealand paints an alarming picture of decline in Mathematics scores for Primary School leavers. These students then enter High School without the math skills to succeed. Here are some of the results: “Maths scores have been declining since 2002, according to OECD data. National Standards figures show a slight climb […]

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### Maths Links – Resources for teachers and classes

February10

The MathsLinks network has great starter activities, exam and task timers, graph paper, etc. for classroom use

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### What makes a good maths teacher?

February3

The website “Engaging Maths” posts this interesting article; So, what makes a good mathematics teacher and, if you like your maths teacher will your grades improve? Dr Catherine Attard, from the University of Western Sydney, wrote her PhD thesis on a longitudinal study on engagement in middle years mathematics. She notes,  “early in the study I […]

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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)?]