Welcome!



I am a high school maths teacher in Australia. This site hosts free web tools I have created to help my students learn mathematics.

Everything here is free for non-commercial use. Please attribute if you reuse or share.

Unit Circle Tool

Visualise angles, radians and coordinates interactively.
Matrix Multiplier

Multiply matrices and see the working clearly.
Graph / Network Drawer

Create and experiment with graphs and networks.
Doomsday Algorithm Trainer

Practice John Conway’s mental calendar method.
Golden Spiral Builder

Draw an approximation of the Golden Spiral using squares, rectangles and φ.
General Maths Grade Calculator

Estimate final grades using Queensland assessment weightings.
Pi Memoriser

Train for Pi Day here!
How Many Days Left?

Tells you how many days are left in the QLD public school year!
Scientific Notation Converter

Turn big or small numbers into scientific notation!
Similar Triangle Scaling Problem Generator

It's in the name.

If you find bugs or have suggestions, please email me at the address below.