If you search on YouTube you will find many movies about using the iPads in the classroom. As my bandwidth is now shaped watching them at home is impossible and as YouTube is banned at school I cant watch them there also. So here are the links for you to watch. Let me know how they go.
iPad for educators 101 accessories
iPad in class
Student using an ipad to reinforce a lesson
Apple iPad VGA adapter demo
Think I found an app for that somewhere. I’ll look again and let you know.