Rocket Languages offers Arabic Pronunciation Made Easy. This free resource uses web-based voice comparison software to check whether your students are pronouncing words and phrases correctly. Topics include greetings, hobbies, weather, and others. Note that the recordings are in Egyptian colloquial.
The pronunciation exercises are available at http://www.rocketlanguages.com/arabic/learn/pronunciation
NCLRC Arabic K-12 Bulletin - April 22, 2013. (firstname.lastname@example.org, 22 Apr 2013).