This NRC book is freely available as a pdf.

Even though the products of this company have been ranked highly as an education app, I am unable to see how this game is any different from the drill type computer games that have been around for ages. Am I missing something ? I think there is a need for both clear guidelines and regulation before a product can be claimed to have educational value.

This data base from the edWeb site (Games for learning) that Stephanie shared is a crowd sourced collection of learning games. Has the learning been intrinsically integrated into these games ?. How wise has the crowd been in collating this learning resource ?

I have found it useful to compare and contrast the links below ( shared by Stephanie and Bharat) Trial ST Math ( mindresearch.net/ ) Reflex math ( http://www.reflexmath.com/)

A popular article that argues play is a universal feature among animals and serves valuable functions

This article details how a charter school ("Rocketship education") is using computer games based on drill to improve test scores. Assessment procedures in place is obviously a very important driver for such initiatives.

This article talks about how play has become more structured / commercialized and that imagination is one of the components lost.They further state that this leads to diminishing executive function stated to be responsible for decreasing self control.Like the Marshmallow experiment, perhaps there is a need for more evidence ?