I only work with younger males, but females/males are the same species and according to recent findings by women's studies majors, there is no biological difference between men and women.
As for what to do; I don't really know because I'm not there and can work with them on a day/day basis. Generally speaking, I try to get the kids to bodyweight squat, do push-ups, jump on a box and long jump and run. Throwing the med ball (total body; don't be one of those idiots who does "handclap push-ups or seating med ball tosess") would also be on my list if I had the balls (Hey-O!!!) and the space/help. I would recommend total body overhead forward/backward and total body chest pass: once they get the hang of these, they should get off the ground during/after each throw.
If they can't do push-ups, do them on an incline. If they can't squat correct, put them on a box; this is all real simple shit any coach can figure out. Generally speaking think about it like this: if you can get them to squat, jump, run and have enough coordination to "link" their body with throws, you are well on your way.
Do NOT have them do a ton of movements; they are physically stupid. You know the schmo's that try to "confuse the body"? Well, they are fucktards. The kids have to learn how to jump/run/squat/throw correctly so don't start doing weird shit until they master this.
I see you have jump ropes; this is great. Just be a little wary of jump rope volume due to shin splints. Also, understand that you don't need to spend 90 minutes doing some silly "I'm a fucking Navy SEAL" workout. Don't teach a million things in one day; in fact, we generally start with some kind of jumping, rolling, movement as a warm-up. Then we do two "movements" supersetted; have them get the hang of squatting and push-ups, for example. And then you can do some running/jump roping or whatever.
Once you teach them this stuff and they get the hang of it, you'll be fine. We generally use DB's (for squats), boxes to jump on, boxes to squat on (if needed), some place to do incline push-ups (if needed) and a place to do long jumps, movement, etc.
Granted these kids are in 7-8th grade. I have no idea what I'd do for a 2nd grader other than send him home because I wouldn't want to coach them. Sorry man - no idea about that age. They should be out playing or mowing lawns or whatever.
Good luck. Be patient, don't treat them like "kids" or rather "babies" and don't let one shithead bring the others down.