Martha, this is a really great start! I love that you have called out each of the essential elements here. By incorporating oral history and the outreach materials you are also introducing a nice cross-disciplinary opportunity with history, journalism, english, video production.... how exciting! Your driving question is well-situated in the local context and open ended enough for students to make it their own. I imagine that the background research your students will take part in will include looking at different datasets (precipitation and temperature at least) as well as considering different agricultural practices overtime. This sounds really exciting and I'm looking forward to seeing this develop over the summer.