vs. Borlänge Municipality (same form)
School compared with all schools in the same municipality and form.
| Metric | Tjärnaskolan | Municipal avg. | Difference |
|---|---|---|---|
| Qualified teachers | 62.0% | 65.4% | −3.4% |
| Pupils per teacher | 8.9 | 12.0 | +3.1 |
Headmaster: Stefan Fredriksson
A composite of five open data sources — a starting point, not a grade.
Skolkoll score is Skolkoll's composite indicator based on available data sources. It is not an official quality measure and should be read together with the underlying data.
2 of 5 score dimensions have school-specific data.
When school-specific data is missing for a dimension, the neutral value 50 is used. That does not automatically lower the school, but it makes the score less informative.

Tjärnaskolan is a medium-sized municipal compulsory school with 250 pupils.
Tjärnaskolan is a medium-sized municipal compulsory school with 250 pupils. The share of qualified teachers (62%) is below the national average of 72%.
School compared with all schools in the same municipality and form.
| Metric | Tjärnaskolan | Municipal avg. | Difference |
|---|---|---|---|
| Qualified teachers | 62.0% | 65.4% | −3.4% |
| Pupils per teacher | 8.9 | 12.0 | +3.1 |
School compared with the national average for the same form.
| Metric | Tjärnaskolan | National avg. | Difference |
|---|---|---|---|
| Qualified teachers | 62.0% | 72.3% | −10.3% |
| Pupils per teacher | 8.9 | 12.0 | +3.1 |
Five schools most similar in geography, size and pupil composition.
| Metric | Tjärnaskolan | Similar avg. | Difference |
|---|---|---|---|
| Qualified teachers | 62.0% | 61.9% | ≈ same |
| Pupils | 250 | 244 | ≈ same |