Make the complex make sense.

Help me understand {{concept}}. My current level is {{level}}.

Start with a plain-language explanation in 150 words or fewer. Then give:
1. One concrete example.
2. One analogy, and where it breaks down.
3. The three most common misunderstandings.
4. Three questions to test my understanding.

Do not answer the test questions until I try. After I answer, explain any gaps and give a small practice task. Avoid oversimplifications that make the explanation wrong. If the concept is disputed or context-dependent, tell me.

Tip: fill the fields to replace the {{placeholders}} before copying.