This activity demonstrates the concept of 'cycle time' within a basic assembly line, which is the time it takes to assemble a part or product.  Work that is done to build skateboards is simulated through videos and animations, allowing students to experience the basic steps of the manufacturing, or assembly, process. Students can calculate the time it takes to assemble various parts of the skateboards well as the entire skateboard.   Students can also gain an appreciation for how changing, or redesigning, the work can impact the cycle time.