This is a very simple game that took me quite a long time to make; it would have been a lot easier if Microsoft Powerpoint had the ability to make an action button that takes you to a random slide.
Students simply guesstimate the percentage of the circle shaded, and then click to see the answer. Click on a red, amber or green button to be taken to another question.
The idea is simply to give students an idea of what percentages look like. I'll be playing it throwing a soft ball to whichever student I want to answer. I may well throw in a timed element too - see how much they can score in 2 minutes.
I'm sure it would make a good starter for any class who respond to this sort of activity.
What's The Percentage?