"His goal, not always realized, is to find items that cause students to say "Cool! I wonder what the answer is."
No Richard, his goal is to blog to other teachers like yourself, desperate for anything. Trust me on this, this is not about students, this is about Dan and the little bit of fame he gets on the Internet. I have looked at the results of the school he teaches at, remember? I differ from Josh on this point. I don't think Dan even has a method. He has sparked interest in some teachers with pictures, but it hasn't helped his students, according to their performance.