I discovered Nearpod at a technology conference last year and it may be one of the neatest apps for instruction that I have stumbled upon in quite a while. Install the app on your iPad or you may install the app into your Google Chrome web browser from the Chrome Store. Create a Teacher Account. Have students/others install the app on their smart phone. Go to nearpod's store and purchase or download free presentations. Once you open the presentation your are assigned a pin #. Distribute that pin to the class and have them enter it after opening their nearpod app. Be prepared for the excited response of having students, as they follow along with the lesson and engage in live feedback. What a great new way to present!