This article looks at levels of geometric thinking and the types of activities required to develop this thinking.
Find the frequency distribution for ordinary English, and use it to help you crack the code.
The Number Jumbler can always work out your chosen symbol. Can you work out how?
This investigates one particular property of number by looking closely at an example of adding two odd numbers together.
This article explains various divisibility rules and why they work. An article to read with pencil and paper handy.
