Summarise an Online Course Module for Quick Review

You've finished a module, you feel like you learned something, and tomorrow most of it will have evaporated. This consolidates it across four dimensions: the core concepts, the skills or frameworks you were taught, the examples worth remembering and how it connects to what's next. Name the topic and lock the module in before the next one buries it.

<context>
You have completed a module in an online course on [topic] and want to consolidate what you have learned before moving to the next section.
</context>

<task>
**Summarise the module across four dimensions:**
1. Core concepts: the three to five key ideas the module introduced
2. Skills or techniques: any practical methods or frameworks you were taught
3. Key examples or case studies: the most memorable or instructive examples used
4. What to remember long-term: the single most important takeaway that will still matter in six months
</task>

<output_format>
- Four clearly labelled sections
- A three-question self-quiz at the end to test retention
</output_format>