Interactive teaching programmes
 

Activity 6: Counting on and back

Synopsis: This ITP simulate a 100-bead string. You can move all the beads to the right of the string and move individual or groups of beads to the left side of the string by clicking on selected beads.

The controls also allow you to move 1 or 10 beads to the left or right of the string to show addition and subtraction. This ITP can be used to model different counting and calculation strategies.

Explanatory notes on activity (Word 80KB)

Open and investigate activity (SWF 34KB)