I'm no pro, but I've helped a little.
Focus on the fundamentals. Shooting in particular. No kid is going to do much of anything in high school if they can't shoot.
Most of what we worked on was defensive movement (helpside and closeouts), screen and roll and basic stuff along with a lot of setting up shots at various spots on the floor.
We also did some 3 on 2 drills. If they can manage that, 3 on 2-2 on 1 drills are better. Those type of drills are good for conditioning, ball handling, and are competitive, so it is fun.
3 man weave is a big one.
Screen and roll against defense is a good one.
I guess some tips I've learned are:
- Don't take and ounce of shit from them. Don't let them **** off or make fun of each other. They'll continually try to push the limits. Suicides are your friend.
- Keep constant feedback coming. Kids that young often don't have a clue what they're doing, so the more feedback, the better
- Keep the energy up, even though it is tough with fundemental drills.
- Keep as much competition in there as you can. It doesn't all have to be scrimage, freethrows, passing drills, ball handling drills can all be competitive. Just find a way to keep track, and find a way to reward the winners.
Good luck.