This is something I typed up based on what I learned at the AP reading this year, 2016, in order to help my kids get these two critical points while writing their essays. I had always taught them to answer the question rather than rephrasing it, but I didn't know that the thesis didn't count if it didn't specifically address all parts of the question. I also did not realize that the contextualization was expected to be in the first paragraph. These two concepts apply to every APUSH essay, not just the DBQ so I consider it something that definitely needs to be explained and practiced.
This one addresses concepts in Periods 1 & 2, so that it can be introduced very early on in the course.