Valve, a game developer has released their hit game Portal for free with a series of educational resources targeted at teaching Senior Physics and Maths. Will be checking this one out over the holidays, but so far looks excellent.
This is a nice site that includes real-world problems covering a wide range in Math, Science, and more. Lesson plans included.
Please take a look at ourCommon Core and Ed Tech blog. Would like any feedback or ideas you may have about what you'd like to see.
Videos for everything from why do it, to how to do it (buy the boards, set up the lectures, set up the tripod, upload).
Amazing resource for anyone slightly overwhelmed, but really interested in, the flipped classroom