Check out the new site, http://youcubed.org/teachers. The site includes links to pages of ideas, videos and other resources you might find useful.
The article "Ideas and Tasks for Back to School" in this newsletter features information from the Youcubed website.
One recent post on the Youcubed site addressed math apps. Boaler writes, "In my recent presentations I have been talking about the need to get rid of short – and particularly timed – questions, replacing them with rich and deep math questions. Many teachers ask how students can develop automaticity without short questions and I share that the best way to help with practice and automaticity is engaging students in good math apps and games. There are many bad math apps and games out there, that are speed driven, but some are excellent and I have put 4 of my favorites on youcubed."
You can find them at
http://youcubed.org/teachers/2014/math-apps-and-games-we-like/