## Welcome to H3 Maths

Blog Support for Growing Mathematicians

### Welcome to H3 Maths!

February14

We are moving on to Ratios next. My Dad (who was a keen maths student) taught me a cool way to use ratios and this secret will be shared at class next week! Also, I now have your logons for MathsOnline, so there is plenty of work heading your way ðŸ™‚

by posted under Uncategorized | 4 Comments »

#### “Welcome to H3 Maths!”

1. Alina Jacob Says:

Mr Hayden
for maths online do we have to do all the tasks or just week 6.
Thanks
Alina

• h3maths Says:

Thanks Alina. Just the Week 6 ones, but please feel free to go on to the next ones if you have time.

2. millicent hargrave Says:

hey mr hayden…..

just wondering when will we be getting our 1st assingment ?
and also do we have any homework?

thanks
from millicent hargrave
9.3/9c maths bcc 2011

• h3maths Says:

Hi and thanks for your questions. The first assignment is on March 15 (numbers, etc. from Chapter 1 and 2 in the text). Yes, there is homework after most lessons! Very rarely do I not give homework as it helps revise important concepts used in class and reinforce your understanding of a topic. Can you imagine concrete without reinforcing? It would turn to powder! The same applies to our learning – we need to reinforce by going over what we have done in class and apply our learning to new situations. This way we get good exercise for our brains too!

#### 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)?]