A directory of useful objects found on the web for teaching Maths.

Investigate Pythagoras’ Theorem and its application to solving simple problems involving right angled triangles (ACMMG222) * understanding that Pythagoras’ Theorem is a useful tool in determining unknown lengths in right-angled triangles and has widespread applications * recognising that right-angled triangle calculations may generate results that can be integral, fractional or irrational numbers known as surds