You need to have JavaScript enabled to view this video clip.

Description

An introduction to positive and negative numbers. Cartoon-style numbers initially form a line from 0 to 9. The negative numbers 1 to -9, they then join the line in the correct sequence. The clip shows how with each addition the negative number increases in positivity.
This clip is from:
First broadcast:
14 September 2007

Classroom Ideas

Use as an introduction to negative numbers. After watching the clip, create a horizontal number line (or have one already prepared) for the pupils to further practise. Try starting at the number 9 and subtracting 5 until you reach the negative numbers. Ask the children which negative number would come next. Alternatively, start at -9 and add 4 each time. Ask the children to record their ideas on mini whiteboards to ensure the whole class understands. You could progress onto a vertical number line and ask the children for real life reasons for using negative numbers.

This clip also features in: