Por si algún profe quiere investigar sobre estas 70 apps y ver si le son de utlidad. Yo uso algunas // The 70 Best Apps For Teachers And Students - Edudemic. These are listed as itunes apps, but I'm sure a lot of them can be found for Android as well.
First Week Of School Activities. I like the idea of classmates interviewing each other. Could also be used as a writing assignment or after an interview the student must introduce their classmate to everyone else.