## Using the Number Boxes 1 to 10

### Order the Number Boxes 1-10 »

The Number Boxes are a powerful tool to teach:

- Sequencing
- Hierarchical inclusion
- Fact families for the numbers up to 10
- The relationship between addition and subtraction
- Fact fluency
- Problem solving with addition and subtraction

### Discovering all the combinations to make a number

Children discover that there are many ways to make a number and all the patterns in those combinations: each block appears twice, providing a visual presentation of the associative principle (“turn-around” facts), and the inverse relationship between the two addends (one staircase goes up while the other side goes down).