If you haven't started using Prezi you are missing out on a chance to connect new concepts and engage yours students.This user friendly site allows teachers and students to upload slides from Powerpoint or start from scratch. They have a number of templates to choose from or you can create your own Prezi. Teachers can search for their content area on the site and use existing Prezi's. This site does a great job of saving every Prezi you create so that you can go back and reuse or recreate old Prezi's. Prezi has an app for the iPad and is even compatible with Edmodo when uploading it to the site.
Trust me, you want to be using this!