Looking for a way to make Operating System scheduling hands-on and interactive? This activity turns abstract algorithms into a classroom puzzle students can see, move, and solve! What Students Do: Cut out time slice manipulatives and arrange them into a working Gantt Chart. Work through task cards that guide them in simulating scheduling schemes. Record solutions on a student worksheet to turn in. Calculate average waiting time, turnaround time, and throughput. Differentiated Levels: Level