There are sites online with free flash games. A lot of these carry advertising so you need to be judicious in their use but some could be used as a 'carrot' to complete an activity.
This one carries adverts for acne treatment and the game and sound effects are a bit 'graphic' as it involves popping zits! It's a flash file in swf format. These can be dragged straight onto a Smartboard notebook page. Alternatively you can use a flash player such as SWF opener.
You obviously would not play this if there were any children in the class with a significant problem! I will leave you to be the professional judges of what is appropriate! That said, I have used this with quite a difficult yr 9 group revising for a test and it was a real motivation for them to get as many answers correct on the work to 'earn' the right to have a go at this challenge.
