"On Monday, the American Library Association its list of the "most-challenged books," that is, books that have received the highest number of "formal, written complaint[s] filed with a library or school requesting that a book or other material be restricted or removed because of its content or appropriateness." Dav Piley's Captain Underpants tops the list, and is joined by books like Khaled Hosseini's The Kite Runner, Toni Morrison's Beloved and E.L. James' Fifty Shades of Grey."
This is a great question, and while I don't think you can just students' understanding one way or another simply with test results, I think the question still has to be asked: do videos support new learning, or simply reinforce incorrect learning. Derek Muller discusses his doctoral thesis: "It is a common view that 'if only someone could break this down and explain it clearly enough, more students would understand.'... they do not engage with the media on a deep enough level to realize that what was is presented differs from their prior knowledge." The answer isn't a simple yes-no, of course: if misconceptions are presented and then refuted (a la Mythbusters) then students can learn from videos. -- Downes OLDaily march 20