App for pushing out tests/quizzes

Hello!

I just got my first grant filled, one whole iPad to be used in my middle school math classroom. I already have another 12 I should be getting in May (going to wait for the new iPads). If this goes well, I can expect another 10.

I have all sorts of apps I will be using. The one app I need is a good app for pushing out a test to the students. Not just a poll, as some apps do. Best would be if it would pop up a notification, but that is whip cream.

Any ideas?

Also, if you have any suggestions on apps for the math classroom, id love to hear them!