At 11 and 12, the arm gets stronger and the habits around it start mattering as much as the throws. Three builds anchor the session: the CROW HOP (the hop-gather that turns a strong throw into a carrying one), an honest introduction to long toss (stretching the arm out with arc and easy effort, pulling back in with intent), and accuracy under time, because game throws happen with a runner attached.
This session runs about an hour, and it installs the arm-care frame that should now travel everywhere: warm up throwing before throwing hard, effort climbing gradually, genuine rest days in the week (especially for kids who also pitch), and the iron rule said plainly: soreness is information, PAIN is a stop sign, every time, no exceptions, no toughing it out.
This plan was written for every 11 and 12 year old. ParentEdge writes one for yours.
Built around their game, their goals, and what they’re working on.
Two phases, both submaximal: stretching out with arc and easy effort to whatever distance is comfortable that day, then pulling back in to about sixty feet for a handful of firm, flat throws. No forcing distance, no max-effort launches. Done that way once or twice a week, it is the safest arm-builder there is.
At least a day or two per week completely off overhand throwing, more for kids who pitch (pitching days carry their own league-mandated rest, and those counts are law). The weekly out-loud rest-day audit in this plan exists because the kids most at risk are the ones playing on three teams nobody is adding up.
General next-day muscle soreness that warms away with easy throwing is normal training. Pain that is sharp, localized (especially elbow or shoulder), present during easy throws, or that changes the throwing motion is a stop sign: shut the session down and rest it, and see a doctor if it lingers. At this age, no throw is worth pushing through pain, ever.