**Overstanding basic arithmetic**

In our approach to learning we use these custom designed posters to teach the deepest ideas of number:

- what number is?
- add-subtract relationships
- multiply-divide relationships
- fraction arithmetic
- positive & negative exponents
- rhythmic arithmetic with binary
- non-verbal hand-signing arithmetic
- types of number (sets)
- number relations introducing algebra
- number relations introducing other big ideas in mathematics

Overstanding basic arithmetic with the wonderful numbers Two, Three and Seven as keys to the whole number system.