TWO ACTIVE. OTHERS LINE UP.
One server and one receiver play. Everyone else waits behind the launch line.
An original wall-reaction recess game using called targets, a launch line, one rebound box and a clear two-player rotation.

Wall games often break down because players disagree about where a throw was aimed, whether the rebound was legal, or when the receiver was allowed to move. Reflex Fix makes those decisions visible before students go outside.
Mark four coloured wall targets, one launch line and one rebound box. Two players are active; everyone else waits in one line.
The projected training shows a short playground scenario, freezes at the exact decision point and gives the class three possible calls. Everyone thinks; one randomly chosen Call Crew makes the official decision.
Turn a wall game into a predictable two-player reaction challenge with called targets, one bounce and a fixed rotation. The screen is the rehearsal. Recess is the destination.
The Fix is intentionally not a professional rulebook. It teaches the moments most likely to stop this schoolyard version, then gives students one neutral sequence for restarting play.
One server and one receiver play. Everyone else waits behind the launch line.
The server names one wall target before the ball leaves their hands.
Use a controlled underhand throw. Both feet stay behind the launch line until release.
The ball must contact the colour that was called first.
After the wall, the ball must bounce once inside the rebound box before the receiver plays it.
The receiver catches after the first bounce and becomes the next server.
The receiver waits behind the reaction line until the ball hits the wall. No body blocking.
A miss sends the server to the line. A missed legal return sends the receiver to the line.
The teacher can run the whole activity from one projected screen. Students do not need devices, logins or accounts. If the class makes a poor call, the moment replays and the rule is repaired before it is locked into the final outdoor play card.
Use the indoor training once when the game is new, then return only when the same close call starts consuming recess again. A successful Playground Fix should gradually become unnecessary because students can start, rotate, settle ordinary disputes and keep playing without a teacher standing beside the game.
One soft ball · wall · chalk/cones for 4 targets and rebound box
Mark four coloured wall targets, one launch line and one rebound box. Two players are active; everyone else waits in one line.