## Backward number word sequences

### Level 0: Emergent

The emergent level characterises children who have not yet developed knowledge of the backward sequence of number words from ten to one.

### Level 1: Initial (10)

At the level of the initial backward number word sequence up to ten the backward sequence of numbers from ten to one can be produced but not the word for a number immediately before one in this range.

### Level 2: Intermediate (10)

At the intermediate backward number word sequence to ten, the number word just before a given number word can be produced within this range but only by dropping back to count from one when doing so.

### Level 3: Facile (10)

At the facile backward number word sequence to ten the number word just before a given number word can be produced within this range without dropping back to count from one.

### Level 4: Facile (30)

When students are facile with backward number word sequences up to thirty the backward sequence of number words from thirty to one can be produced and the number word just before a given number word can be identified within this range without dropping back.

### Level 5: Facile (100)

When students are facile with backward number word sequences to one hundred the backward number word sequences can be produced in the range from one hundred to one and the number word just before a given number word can be identified within this range without dropping back.