Flashcards

Stratum includes a spaced repetition (SRS) flashcard system for active recall learning.

How Flashcards Work

Create blocks with question:: and answer:: properties in your notes. Stratum automatically generates flashcards from these blocks.

- What is a monad in functional programming?
  .question:: true
  .answer:: A monad is a design pattern that allows chaining operations while handling side effects.

- What is the difference between `var` and `let` in Rust?
  .question:: true
  .answer:: `var` doesn't exist in Rust. Variables are immutable by default (`let`); use `let mut` for mutability.

Opening Flashcards

Click Flashcards in the sidebar or navigate to /flashcards.

Review Session

1. Open the Flashcards panel
2. Cards due for review are loaded automatically
3. Look at the front — try to recall the answer
4. Click the card to show the back
5. Rate your recall:

Rating	Meaning	Interval
0–2	Forgotten	Card resets to short interval
3	Recalled with effort	Moderate interval increase
4–5	Easy recall	Large interval increase

Spaced Repetition Algorithm

Stratum uses a modified SM-2 algorithm:

• Ease factor — adjusts per card based on recall difficulty
• Interval — grows exponentially with successful recalls
• Next review — calculated automatically after each rating

Card Properties

Property	Description	Example
question:: true	Marks a block as a flashcard question
answer:: <text>	The answer (can be on a child block or in properties)

Session Complete

When all due cards have been reviewed, the session shows a summary:

Tips

• Create flashcards as you take notes — "write once, review forever"
• Use the #flashcard tag alongside question:: for easy searching
• Review daily — short sessions are more effective than cramming
• Rewrite cards you consistently fail — the problem might be the card, not your memory