01
Name the simplification
Choose one concept and state which details you are deliberately leaving out. An example about the meaning of a conversion action does not need to simulate an entire advertising account.
Invent the scenario rather than copying private data. The exercise should be recognisable as learning material wherever it appears, including in a portfolio or conversation.
02
Explain what the example shows
Describe the question, the information available and the reasoning you used. A reader should understand why the example is relevant without assuming that it proves a commercial result.
Do not attach fabricated clients, spend levels or success claims to make the exercise look more impressive. Its value lies in the clarity of the thinking it makes visible.
03
Try changing one assumption
Ask how the explanation would change if one condition differed. This can reveal which part of the reasoning is general and which part depends on the simplified setup.
Record the limitation alongside the conclusion. A good exercise leaves a reader better able to ask questions about real work, rather than overconfident about a situation it did not model.