Dan Willigham has a new video up on the importance of content instruction in reading and comprehension. Willingham and Don Hirsch have making these same points for some time now. But the video makes this information more accessible.
BTW, Willingham also has a new article on memory in the new American Educator which you should also read.
And, would you believe that I actually beat the inestimable Core Knowledge Blog in posting the video. Take that Pondiscio.