This interactive classroom resource is for teaching about Carroll diagrams and for practising using Carroll diagrams. It is built around sorting multiples so it is also useful for kids to practise times tables. There are two modes:
Demonstration Mode: This is untimed and unscored. It gives immediate feedback and numbers can be moved repeatedly. Teachers may like to use this on an IWB or tablet to demonstrate the concept of Carroll diagrams.
Challenge Mode: This is timed and records scores. Players must allocate the numbers as quickly as possible. Numbers can only be moved until the player goes on to the next number. Each wrong answer incurs a 10 second penalty. Scores are retained on the device for subsequent sessions.