Interactive teaching programmes
 

Activity 9: Difference

Synopsis: This ITP allows you to compare two rows of beads and to analyse the calculations they can represent. It can be used to promote the language of addition and subtraction, particularly the interpretation of difference. The ITP operates as a series of animations which show how the rows of beads can be represented by two number lines and then as a single number line with the difference indicated by a ‘jump’.

Explanatory notes on activity (Word 123KB)

Open and investigate activity (SWF 41KB)