While a lot of people have said no mods, I would highly suggest getting the ISA mapsat mod added. Allows you to set some realistic goals of Mapping moons and planets. You can have the kids calculate an orbit with a period different then the rotational period and explain why that is important. Also allows you to be much more generic with your exploration goals while at the same time allowing for the students to be more likely to find the anomalies. For example say 50,000 for doing a full map of Mun, and 200,000 for the first team to post on your forum a screenshot of them at the anomaly. Overall love to see teachers doing this sort of thing, Good job.