Free operations classroom lesson
Students map a process, diagnose its likely bottleneck, test one operating change, compare throughput, quality, and financial evidence, and write a practical improvement memo. No account or student information is required.
Direct answer
Use two comparable runs to make a process constraint visible. Students first record a baseline, then change one capacity, staffing, inventory, maintenance, or workflow decision while holding other choices steady. They compare customers served, waiting or lost demand, quality, cost, and profit to decide whether the change relieved the bottleneck or merely moved it.
The lesson emphasizes evidence and tradeoffs rather than the highest score. A good recommendation names the process constraint, cites comparable measures, considers a new downstream bottleneck, and recognizes that a simulated result is not a real operating forecast.
Choose a process
| Simulation | Process focus | Question to test | Worksheet |
|---|---|---|---|
| Coffee shop | Queue, baristas, service capacity | Does added service capacity reduce waits without creating excess labor or waste? | Open |
| Food truck | Prep, cooking, event demand | Is the constraint prep inventory, cooking labor, service speed, or location demand? | Open |
| Car wash | Bays, uptime, queue flow | Does more demand help when bay capacity or equipment reliability is constrained? | Open |
| Bakery | Production, freshness, waste | Can production meet rush and wholesale demand without costly overproduction? | Open |
| Auto repair | Diagnostics, bays, rework | Does higher throughput remain valuable after comeback repairs and trust are counted? | Open |
| Childcare | Enrollment, rooms, staffing ratios | How do capacity, required staffing, quality, and cash flow interact? | Open |
Ready-to-use activity
Learning goal: students will represent a simple operating process, use evidence to identify a constraint, test one improvement, and explain the effect on flow, quality, cost, and profit.
| Measure | Baseline | Changed run | Operational meaning |
|---|---|---|---|
| One operating decision tested | |||
| Demand, arrivals, or available work | |||
| Customers served or units completed | |||
| Wait, backlog, stockout, or lost demand | |||
| Quality, satisfaction, rework, or rating | |||
| Labor, inventory, or capacity cost | |||
| Revenue and profit |
Process: Name the input, main stages, and useful output.
Constraint: Identify the limiting stage and the baseline evidence.
Change: State the one decision tested and why it should improve flow.
Evidence: Cite at least two measures from comparable runs.
Tradeoff: Explain the effect on quality, cost, safety, workload, or inventory.
Next test: Name the new constraint or uncertainty and a small, measurable follow-up.
Grade the diagnosis and reasoning, not the largest simulated profit.
Assign one simulation and one operating variable. Compare a baseline with one changed run, record four measures, and write a claim with one tradeoff.
Provide a partly completed process map, preselect the dashboard measures, and pair a simulation operator with an evidence recorder who checks comparability.
Calculate a throughput rate or capacity cushion from available figures, run a third test, or compare how the same improvement behaves under lower and higher demand.
Efficiency does not override safety, labor standards, accessibility, licensing, environmental requirements, quality controls, or human judgment. Do not recommend unsafe workload, inadequate care, skipped maintenance, deceptive service promises, or noncompliant staffing simply because a simulated profit rises.
These simulations simplify demand and operating relationships for learning. They do not model every constraint or predict a real business. A real improvement should use verified local data, involve affected people, follow applicable rules, and be tested at a safe scale with stop conditions.
Start with Coffee Shop for an accessible queue, staffing, capacity, quality, and waste problem. Use bakery for production and freshness, car wash for bays and uptime, auto repair for diagnostics and rework, or childcare for capacity and required staffing.
Students practice process mapping, capacity and demand comparison, bottleneck diagnosis, utilization, staffing and inventory tradeoffs, controlled experiments, service quality, and continuous improvement.
The full investigation takes about 50 minutes. A focused baseline-and-test version can fit in about 25 minutes.
No. The simulations run in a browser without student accounts, personal information, or downloads.
No. They show relationships inside a simplified model. Real operating decisions require verified data, safety and labor requirements, applicable regulations, stakeholder input, and controlled validation.
Use the supply chain management lesson to connect flow with inventory and sourcing, the accounting class lesson to trace operating costs and margins, the marketing class lesson to separate demand generation from delivery capacity, or the teacher hub for more lesson formats.