Alison has been working very hard with the less able children this week, trying to get them to understand what is meant by 'the difference between' two numbers. They've built towers with bricks, jumped along stepping stones, counted on 10x10 squares and generally been as active as they could possibly be.
Alison: So who can tell me what is two more than three?
Struggling Little Boy: er . . . is it 5?
A: Well done, S L B. So - what is the difference between three and five?
S L B thinks very, very hard, then his little face lights up.
S L B: I know, I know - three is all curly and five has a straight line hat at the top.