More than just a game, not really a game at all. Use Rob8 to investigate functions and their graphs.
The aim is to find out what operations each of Rob8's brains performs. There are four types of brain (same brains) which do the same operation every time you use this activity. Each of these brains carries one of the four operations: addition, subtraction, multiplication or division.
Two types of brain (random brains) are slightly random: ie the operation they carry out might change. These brains also carry out one of the four operations.
The special brains do the same each time: it could be quite tricky to work out what they do.
Pupils should describe the brains according to the shape pattern on them; thus using their knowledge of polygons.
Lots of 'what happens if...' questions can be asked if used with the whole class.