Fit Brains - Brain Fitness and Brain Training

Fit Brains is a collection of free games designed to strengthen five areas of cognitive brain function. While the website seems to be targeted toward an older audience there are some games on Fit Brains appropriate for students at all grade levels above the third grade. Reading through the background information about Fit Brains you do get the impression that the games are grounded in sound research and practices. Fit Brains offers some "premium" services in addition to their free game offerings.

Applications for Education
Fit Brains could be a good site to direct parents to if they're looking for some games for their children to play during summer vacation.The Fit Brains blog has a number of interesting articles about brain science that teachers and parents will find interesting.