Web 2.0 tool

you can use prezi in any class to  make presentations, and it is like power point but theres a lot more features. it can be used for history, to make detailed presentations or for science to make interactive/animated presentations.

you can also save presentations online, where everyone can see them any time, so it would be good to use in case a teacher is absent, or so you can review it for a test, project, etc.