Issue #24 - MathsLinks Newsletter - resources for maths teachers
This edition includes: a nice video introduction to Pythagoras' Theorem; a re-release of the HSC Online resource site and a brief summary of research on using calculators in primary schools.
What do Euclid, 12-year-old Einstein, and American President James Garfield have in common? They all came up with elegant proofs for the famous Pythagorean theorem, one of the most fundamental rules of geometry and the basis for practical applications like constructing stable buildings and triangulating GPS coordinates.

A succinct history of Pythagoras' Theorem.

The CSU (Charles Sturt University) HSC Guide for Mathematics. On this page, you will find resources for Mathematics (2 Unit) and Mathematics General. 

This site has one job: to tell you whether a given number is prime or not.

If you go to, for example,, it will tell you that 57 is not a prime number.

This interactive number line is helpful for teaching decimals and negatives.

Another number line:

This interactive number line is helpful for teaching decimals and negatives.

How does the use of calculators in primary schools affect mathematics teaching?
Expresso is a short selection of research on mathematics education.
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