Ethan and I taught 4 sessions, totally ~175 kids, at Chelmsford. This was our first chance to work with students in that school district. Huge thanks to Ed Despard for making the map!
Some thoughts.
Special needs kids: I think it would help to send their aides and parents information a couple weeks ahead of the program, so that they are more prepared. Maybe some information and visuals about maps and orienteering, and exercises with the specific map that we'll be using. A full explanation of what the lesson will be like.
Kids who can't run: there was a student who had to sit out because they were recovering from concussion. We had in the lesson plan that we could use a student to manage the leaderboard, and we did in fact work with him in that way. But if we connect with the teachers ahead of time to find out whether there are any students who can't participate, again, that would be helpful - if the student knows they'll have a role and what it is.
I really love how kids respond to our format. By giving the map out ahead of time, with the courses on them, we encourage them to look and plan where they're going to go for a few minutes. The result is they take off running out of the start, instead of standing around puzzling over the map. By having them in groups of 2 or 3, they discuss together and show each other where controls are while they are waiting to start. I heard a PE teacher, while getting them into the start line, say: "if you are near the end of the line, you'll have more time to plan your route."
There were a few kids who had done orienteering before (we always ask). Around 5-10%. One kid, Miles, in 5th grade, had done it several times with his dad, and was super fast.
A few girls in 5th grade who do other sports (swimming, cross-country), were fast and competitive.
I invited a thumbs up, down, or in between at the end. When I asked the thumbs downers why the downed thumb, they said because of how hard it was to run so much. (The distances were around 500-800m per course.) This was cool because they were told they could choose whether to walk or run, and these were kids that were pushing themselves.
We'll be seeing most of the PE teachers again in 2 weeks at a presentation we're doing at NPEN in Methuen to 75 PE teachers (our session is maxed out for attendees :-), and then again in December and February at half-day workshops for PE teachers in Chelmsford. These next couple months will be crucial for us to figure out whether we're going to be able to attract clients to continue our work.