A worked example shows the decisions involved in solving a problem. Its value comes from understanding why each step is valid. Merely copying the final calculation may hide a gap in the method. Read the problem first and predict the next step before uncovering the solution. Label the purpose of each step: choose a formula, convert units, isolate an unknown, or check a condition. Then cover part of the solution and complete the missing section yourself. For a percentage problem, explain what quantity represents the whole before multiplying. Change one number and solve again. Finally try a differently worded problem. If the method no longer fits, identify the changed assumption rather than forcing the old steps. Try it today: Choose one worked example. Write the reason for every step, solve a variation, and check whether the answer has sensible units and size.