It's called a revision wheel

So, half a term into school and the glorious powers that be decided that we need to do tests. In every subject. Although we've learnt nothing yet...

Here's just a sample of one of the many revision techniques that our chemistry teacher tried to force upon us. Other gems include:
-battleships
-speed dating
And of course everyone's favourite, sitting motionless at a desk for hours reading the same page over and over trying desperately to cram the night before
My personal favourite