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Blog Support for Growing Mathematicians

Archive for August, 2012

Free Mathematics Courses

August22

Udacity offers many free online courses – some ideally suited to the budding high school mathematician. Check out this one:

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Operations simplified for growing mathematicians!

August18

Get this right and you get Maths! When working in Algebra (like any other work) you need to follow the rules to get it right. Yes, of course there are other ways to handle problems but getting the basics right is the first step! Here’s how I teach it. Think about a BMW (BEMA). This […]

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The Poetry of Mathematics

August15

“The mathematics we choose to hate in school is not the mathematics which, being a part of our soul, we will always love. As Gottfried Leibniz said, “Music is the pleasure the human soul experiences from counting without being aware that it is counting.” It is true of all arts, for symmetry and pattern are […]

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The Quadratic Formula

August15

The Quadratic Formula is widely used in senior high school Mathematics. Click here for more explanation and examples of its use:

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Thanks to our first 1000 visitors

August13

We appreciate you all stopping by H3 Maths, and for your comments and feedback. Our visitors are from 60 different countries which makes us realise how universal Mathematics is  – the gold medal subject of the academic olympics.

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Looking for Patterns in Calculus

August12

Below is the formula for differentiating a fraction, using the Quotient Rule. Note that the ‘v‘s form a V on the outside of the formula, while the ‘u‘s are next to each other. D = Differential. This may help some senior students quickly learn the Quotient Rule (I tried this with a student some 30min […]

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Practice your times tables here

August12

A great way to refresh your multiplication skills, or to learn your times tables. Regular, daily practice will ensure better agility at Mathematics. This is excellent brain exercise and you can set your own pace. Click on the image for more.

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Measurement – from TB to ZB

August11

Computer storage measurements have had to increase dramatically as the internet has grown. From Terabytes to Zettabytes! Full article here.

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Inequalities the easy way…

August9
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Scale and Measurement – Part I

August8

Here’s a good introduction to the concept of Scale and Measurement in Mathematics (answer in Post Support): Estimate the length of this Crocodile that was found in a public pool:

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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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