Answer-first page
Mastery Flow: how does red-yellow-green progression work?
Mastery Flow tracks vocabulary stability over time, not one-off answers.
Direct answer
Mastery Flow moves each word through red, yellow, and green states based on repeat evidence so learners practice weak words first.
How it works
Placement Quiz starts calibration, quiz signals update Unknown Words, and Review Debt controls re-prioritization.
Claim -> evidence
Every statement maps to live product behavior in the claim-evidence registry.
Who this is for
Learners preparing for exams and global users building long-term retention.
Why measure first before learning more words?
Most learners overestimate active recall. Measurement prevents mis-prioritization.
Mastery states and actions
Red
- Signal
- Unknown or repeated errors
- Action
- High-frequency review
- Outcome
- Baseline recall
Yellow
- Signal
- Partial recall
- Action
- Spaced reinforcement
- Outcome
- Stable retrieval
Green
- Signal
- Consistent recall
- Action
- Maintenance review
- Outcome
- Durable memory
Visual product story
Step 1
Word-type selection
What this screen shows Learners start each session by selecting the right word scope.
Message it supports It avoids random memorization and improves relevance.
User impact Practice sessions stay aligned with user goals.
How Vocount applies it Placement Quiz signals and goal settings shape each session scope.

Step 2
Quiz signal capture
What this screen shows Each card captures whether a word is known, weak, or unknown.
Message it supports The model separates known vocabulary from weak vocabulary fast.
User impact Users focus on the words that still block progress.
How Vocount applies it Unknown Words and Review Debt pools update from each quiz signal.

Step 3
Mastery Flow red-yellow-green
What this screen shows Words move across tri-state mastery bands over time.
Message it supports Vocabulary mastery is a progression, not a binary event.
User impact Users can see where retention risk is increasing.
How Vocount applies it Review Debt can downgrade a word and trigger follow-up review.

Step 4
Pronunciation Support and examples
What this screen shows Each word can include pronunciation and contextual usage.
Message it supports Context and audio cues improve long-term retention.
User impact Users move from passive recognition to active use.
How Vocount applies it Pronunciation Support is embedded in the repeat cycle.

Step 5
Unknown Words and Favorites
What this screen shows Unknown words are captured automatically while favorites are user-driven.
Message it supports The system keeps high-priority words visible.
User impact Learners always know what to review next.
How Vocount applies it Unknown Words influences Review Debt scheduling.

Step 6
Goals, streak, leaderboard
What this screen shows Daily goals, streaks, and ranking mechanics support consistency.
Message it supports Consistency is the main driver of vocabulary retention.
User impact Users keep momentum during long study cycles.
How Vocount applies it Exam Pathway and General Learning share one motivation layer.

Frequently asked questions
Is Mastery Flow just a score?
No. It is a progression model linked to recall quality and review timing.
