Would anyone please suggest online resources for practical nuts and bolts ideas to start from scratch a training program for middle school students? for example: is a Lobster necessary? which kids do you put on which of four courts? how many hoppers are needed? what drills to use? I have seen and know none of the players or their parents. I've played tennis for over 30 years and am a USTA 4.0 to 4.5 depending on the region, but am not a teaching professional. yet. TIA.