Having at TI calculator on your computer is very handy. I've been using Virtual TI by Rusty Wagner for 3 years now, even before I had a Tablet. You can download Virtual TI for free
"integrating video projects into the classroom can be as simple or complex as you want. Just grab a phone, digital camera or tablet and your students are on their way.
Here are some video project ideas, divided into ideas for any classroom and ideas for specific subject areas:"