Why Haruko has no grades

When some parents first see Haruko, they ask: "But where's the grade?"

The short answer is: there isn't one. The long answer is worth reading.

Grades are evaluative noise

A grade is a number that tries to compress everything a student knows into a single digit. It loses information. A 70% in math doesn't tell you whether the student masters algebra but struggles with geometry, or understands concepts but makes calculation errors.

What Haruko measures instead

Haruko measures two things: coverage (what percentage of the curriculum the student has seen) and mastery (how well they understand it). Both are broken down by unit and sub-skill.

The result is a map, not a number. And a map is much more useful for deciding what to do next.

For parents

The parent dashboard shows global coverage and mastery, weekly evolution, and qualitative observations from Haruko. No grades. No rankings. No pressure.