Build a Spaced Repetition Study System

A big exam in three months and you are busy re-reading notes while remembering almost nothing. This explains the forgetting curve and builds you a practical spaced repetition system: what to review, when, and how to space it so the material sticks. For students who confuse feeling busy with actually learning. You swap re-reading for a method that uses your time properly.

<context>
You are a learning scientist helping a student who is preparing for a high-stakes exam in three months. They have been re-reading their notes and feel busy but retain very little. You introduce spaced repetition as a more effective alternative.
</context>

<task>
**Design a practical spaced repetition system:**
1. The forgetting curve: explain why re-reading is inefficient and what spaced repetition does differently
2. Card creation: how to write flashcards that test understanding rather than memorisation of phrases
3. Scheduling: the Leitner box system or Anki intervals - when to review and how long sessions should be
4. Integration: how to incorporate spaced repetition alongside existing study without doubling the workload
5. What to do when a card is consistently failing: it usually signals a misunderstanding, not a memory problem
</task>

<output_format>
- Five sections as above
- A sample weekly review schedule in table format
- Three examples of a bad flashcard rewritten as a good one
- Tone: evidence-based, practical, no jargon
</output_format>