Learning Ledger.
Evidence based mastery tracking, built from what you actually do.
Every concept you touch gets a mastery percentage and a confidence percentage, both built from real evidence: quiz results, tutor sessions, transfer question checks. Clicking "I understand this" doesn't move the number. Passing a fresh transfer question does. The Ledger shows how far you are from mastery, how many independent checks are still needed, your streaks, and the next thing worth reviewing.
Mastery only moves when you show the work. Explanations alone don't count.
Your mastery % is bounded by how much independent evidence exists for that concept. No amount of self reported "I got it" moves the number on its own.
Mastery is what you can do; confidence is how sure you are. The Ledger tracks both so overconfident gaps and underconfident strengths both show up.
Every concept has a recommended next step: Quiz me, Master this, Build confidence, or I got it. Pick one and Aluma sets up the session.
Streaks count independent successful checks on the same concept across spaced sessions, not consecutive days of opening the app.
Every tutor session, quiz, and transfer check writes evidence into the Ledger automatically.
Open a concept to see mastery %, confidence %, and how many more independent checks are needed.
Quiz me, Master this, Build confidence, or I got it. The Ledger routes you into the right session.
Concepts you've truly mastered move to the retired list and resurface only when spacing says they're at risk.
You can mark I got it, but the Ledger caps mastery at what evidence supports. A concept with one correct answer will not read as mastered no matter how many times you click the button.
Yes. Concepts are tracked per class and rolled up so you can see mastery for a whole course, not just a single assignment.