Microphone

A microphone is something everyone knows what it is and everyone has seen. It can be used for games or singers. They can also be used in education by teachers that have large amounts of students to talk to and give presentations.

http://hyperphysics.phy-astr.gsu.edu/Hbase/audio/mic.html

Powerpoint

Video

ipod Touch

This technology can do more than just play music and movies.  educational games can be loaded onto them for school children to play helping them to learn while having fun at the same time.  also notes can be recorded onto them and even presentations recorded and downloaded so that the user can go back later if they need to refer to something in a presentaion.

http://www.apple.com/ipodtouch/