New technology is always confusing at first, even in the Middle Ages. A funny little video from a show called Øystein & Meg (Øystein & I) produced by the Norwegian Broadcasting television channel. The actors are speaking in Norwegian but you can read the subtitles to get the joke.
Cool Apps for School has a variety of suggested apps that you can use on your mobile device. There are apps for specific subject areas and for creativity and presentations. Most are free there are a few that have a cost.