Synopsis
Be clear what you mean otherwise the Problem Blob will make trouble for you, as 4 finds out.
Similar broadcast resources

Ratio and Fractions | Who Needs Maths?
Sanjeev Kohli is having a party. The recipe is for four people and he needs to scale this up for twenty. A professional cook, Emili Fusaro, helps him to calculate and mix the ingredients.

Area | Who Needs Maths?
To decorate his friend's bathroom, Sanjeev Kohli enlists the help of a professional tiler, Steven Lang. They work out how many tiles they need before carrying out the job.