The robot's program has one buggy block. Watch it run and miss the 🚩 flag, find the bad block, and fix it — just like a real programmer!
3 wrong guesses ends the run. Fixes in a row build your streak!
🎯 GoalOne block in the robot's program is buggy. Watch the run go wrong, find the bad block, and fix it so the robot reaches the 🚩 flag.
🎮 ControlsPress ▶ to watch the program run. Tap the block you think is buggy, then pick the right command from the fix bar. Keyboard: 1–7 picks a block, A/S/D picks the fix, Enter watches.
💡 TipFollow the program with your finger along the yellow dots — the spot where the robot leaves the path points straight at the buggy block.
What students learnDebugging: programs fail at a specific step, and you find it by comparing what SHOULD happen with what DID.
Try in classPair hunt: partners must agree on the buggy block before tapping. Exit ticket: how did you know which block was wrong?