I would think this is an easy start for schools/teachers in primary to use gaming as a way to introduce technology in classrooms, especially for young learners.

I have come across this website and it has been pretty useful to provide ideas on what are the gaming tools that can be used for different teaching objectives.

www.educationarcade.org

Try this out.

Come across this interesting research from MIT> Worth reading. http://education.mit.edu/papers/GamesSimsSocNets_EdArcade.pdf