Check out the link below for a brand new app, (I think the only one of its kind) with 100s of ideas for teaching and even stress relief tips. Geared especially for TEFL/ESL classes.
It came on the App Store last week and it’s called Teachideas.
Only for iPhone and iPad so far.
https://itunes.apple.com/us/app/teac...378081956?mt=8