How it works · The Digital Twin

μikor knows how your child learns.

The Digital Twin is a private learning profile. It starts empty, fills in from your child's own lessons, and decides what Jero teaches next and how.

A mother and daughter reading together with Jero beside them
What it keeps track of

Three sides of how a child learns

Most learning apps track five to ten numbers, like scores and streaks. The Twin keeps 50 to 75, so it can say something useful: “ready for two-step problems, remembers best with spaced practice, keeps going longer on real-world problems.”

Cognitive
Visual reasoningStrong
Working memoryAverage
Abstract vs. concreteConcrete
Prior knowledgeGrade 3
+ 16 more
Learning habits
Hints neededFewer
PersistenceHigh
Long pausesFew
Repeated mistakesLow
+ 18 more
Behavioral
Preferred paceSteady
Best time of dayAfternoon
Session length18 min
Help-seekingAsks early
+ 14 more

Sample Twin for an 8-year-old scholar.

What it changes

Four things change for every child

The concept and the standard stay the same for everyone. How your child meets it changes.

Difficulty

Set at the edge of what your child can do, and moved after each answer.

Examples

Football scores, animals or building blocks, depending on what keeps them going.

Pacing

Guided steps first, or straight to the challenge.

Presentation

Objects, pictures or puzzles, chosen by what your child still remembers a week later.

Jero pointing at a glowing world map for two children
How it decides

Ready means really ready

  1. 1After every answer, not one testMastery is estimated after each answer with Bayesian knowledge tracing, so one lucky or unlucky moment doesn't decide anything.
  2. 280%, then checked again laterA concept counts as learned at 80% or above. It comes back days later to make sure it stayed.
  3. 3No tests for the youngestAges 2 to 4 are never quizzed. μikor notices what they do, a tap, a sound, a point, and you can add what you saw at home.
What it never does

Your child's Twin stays yours

Never sold

The Twin is never sold and never used for advertising.

Never a label

It decides the next lesson. It is never used to rank children or label them.

Never hidden from you

You can see it, download it and delete it from your portal.

Kept where you live

Stored in your family's data region, under the privacy law where you live.

Trust and privacy in full →

NextHow a lesson is built →The ten steps every lesson follows.NextThe Fusion →What we took from nine school systems.NextOverview →The three engines together.

Start your child's Twin today.

A girl painting at an easel while Jero watches