Relay-Loop Race — Summary Overview This activity turns for loops into a physical relay race. Students take on roles to act out loop execution: Counter — reads the loop header, tracks the counter (i, k, etc.), and signals laps. Runner — physically runs laps (or steps) and announces variable updates. Variable Tracker — records variable changes without seeing the runner. (Optional) Recorder — writes down final values for submission. The structure helps students internalize loop iteration, in