Students had great fun using a new activity in our makerspace rotation selection: the augmented reality app, Ballstrike, free and available from the store on Windows 8 tablets. Apparently available on apple devices as well. We only used the free levels, but was very easy to use and students had heaps of fun, while also learning another application of augmented reality.
http://www.techradar.com/au/news/mobile-computing/tablets/augmented-reality-fitness-games-coming-to-tablets-and-phones-1188130