I have found a great software package called Reflector which you can download onto your computer to allow students to mirror their iPad’s onto your screen.
The free trial allows you to use it for 10 minutes and the full version costs $12.99.
Your computer will need to have a wifi connection.
For me this is fantastic because I do not have Apple TV in my classroom but I do have my laptop, Data Projector and wifi.
I love using this because it not only allows me to display my students work for the whole class to see, it also allows me to take screen shots of their work and save to my computer straight away instead of trying to get my students to email it to me.
In the current school I work at I do not have an interactive whiteboard in my room.
Having just invested in an iPod I came across an app called Air Display which allows you to control your computer remotely from your mobile device, trialling this by using one of the school’s iPads I then invested in an iPad myself.
I now successfully run my lessons with my laptop attached to a data projector and pass my iPad around the class for the students to interact with the screen. The students love this and I feel it is just as interactive as if I had an IWB. In fact I like it better as my students remain seated and I take the iPad to them.