“One More Round”: The Early Signal of Self-Directed Learning
I don't measure how many problems a child gets right. I measure whether, after one round, they say those four words on their own.
Every product needs a north star metric. For momomori's first product, the north star is just three words:
One more round.
Not the score, not the accuracy, not the completion rate. It's whether, after finishing a round, with nobody asking them to, the child looks up and says: "One more round."
Why that line
Because the essence of self-directed learning is internalized motivation.
- Passive learning: the motivation is outside (parent, teacher, reward, punishment).
- Self-directed learning: the motivation is inside (curiosity, competence, wanting to try again).
When a child asks for "one more round" on their own, it means the motivation has moved from external to internal. They're not completing a task — they're chasing something they want.
That's where learning actually begins.
It can be measured
It sounds mystical, but it's actually a behavioral metric you can record. In EXP-001 I define it as:
A spontaneous "one more round" rate of R ≥ 50% — the core loop holds.
I invite at least five children to play, and I observe — no guiding, no teaching. I just record: when they finish, do they put it down and walk away, or do they ask for another round?
Grades lie. Scores inflate. But whether a child wants to play one more time, on their own — that doesn't lie.
That's why I've chosen to trust it.