Tankeborgen Svartlå fria in Boden
Headmaster: Pär Steen
58 /100
Skolkoll Score 58 out of 100. The scale goes from 0 (lowest) to 100 (highest). 50 is the average. This value is above average. Limited confidence: the sample is small, so the score may vary more than usual.
What is the Skolkoll Score? Tankeborgen Svartlå fria is a small independent compulsory school with 20 pupils.
Tankeborgen Svartlå fria is a small independent compulsory school with 20 pupils. The share of qualified teachers (78%) is above the national average of 74%.
- 20PupilsMunicipality: 2,620High reliability
- 78%Qualified teachersMunicipality: 64% · Sweden: 74%High reliability
- 4.8Pupils per teacherMunicipality: 11.2 · Sweden: 12.1High reliability
- 137,700 SEKCost per pupil (municipal avg.)Sweden: 142,155 SEKLimited history
The Data view is optimised for in-depth analysis: history, sources, methodology and export. For a summary interpretation, see Overview.
Key figures over time
Summary of the central metrics for the most recent 5 academic years. Visit each source for the full time series.
| Academic year | Pupils | Qualified teachers | Avg. grade | Cost/pupil (municipality) |
|---|---|---|---|---|
| 2526 | 20 | 78% | — | — |
| 2425 | — | 78% | — | — |
| 2324 | — | 77% | — | — |
| 2223 | — | 61% | — | — |
| 2122 | — | 55% | — | — |
Source: Skolverket + Kolada (cost is municipal average, not school-specific).
School history
Events from Skolverket's unit register, Skolinspektionen inspections, group history, and locally-computed statistical signals. Source events and computed signals are shown separately so authority data is not mixed with deviation indicators.
Most significant registered changes
3 priority events out of 7 total: Lifecycle — School started; Signal — Pupils per teacher changed unusually much; Signal — Pupils per teacher changed unusually much.
All 7 Lifecycle 1 Statistics 3 Signal 3
high 4 medium 3 low 0
12 months3 years10 yearsAll
Quick overview
Few, high-confidence events for guardians and pupils. Low-confidence events, statistics publications, and technical source traces appear in the views below.
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Lifecycle School started
Skolverket records 2013-10-01 as the start date for this compulsory school operated by SVARTLÅ-SANDTRÄSK EKONOMISKA FÖRENINGEN, current status AKTIV.
Source history
Name, operator, status and headmaster changes; inspection decisions; statistics publications; and traceable group history. These rows are source-tagged with origin and confidence.
No source-tagged name, operator, status, headmaster, inspection, statistics or group events for Tankeborgen Svartlå fria in the sources Skolkoll holds locally.
In-depth analysis
Indications, low-confidence rows, statistics publications, and technical source history — for school leaders, journalists, and analysts.
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Statistics Pupil count: statistics vintage available
Pupil count is available for 2026. This is data availability, not a school event.
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Statistics Pupils per teacher: statistics vintage available
Pupils per teacher is available for 2026. This is data availability, not a school event.
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Statistics Qualified teachers: statistics vintage available
Qualified teachers is available for 2026. This is data availability, not a school event.
Computed signals
Larger year-over-year movements in historical key figures. These rows are Skolkoll's computations from existing history and should NOT be read as authority decisions or quality judgements.
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Signal Pupils per teacher changed unusually much
Pupils per teacher decreased by 29% from 6.8 to 4.8 between 2025 and 2026. This is a calculated signal, not a register decision.
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Signal Pupils per teacher changed unusually much
Pupils per teacher decreased by 30% from 9.4 to 6.6 between 2023 and 2024. This is a calculated signal, not a register decision.
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Signal Qualified teachers changed unusually much
Qualified teachers increased by 16 pp from 61% to 77% between 2023 and 2024. This is a calculated signal, not a register decision.
Register sources: Skolverket (fetched 27 May 2026), Skolinspektionen (fetched 3 May 2026), and group lookup from Bolagsverket/Skolkoll. Computed signals are tagged with source "Skolkoll calculation" and have year-level date precision.
Spotted something wrong? Report an error in the history.
Quality data (Skolverket Statistical Database)
Costs, personnel data and school survey results from Skolverket's quality system.
Personnel
Source: Skolverket Statistical Database (Statistikdatabasen). Updated annually.
Pupil forecast — Boden
Number of children in the age group ages 6–15 in the municipality, according to SCB's forecast.
Forecast covers all children in this age group across the entire municipality — not just this school's catchment. Local enrolment depends on school choice and migration patterns.
Source: SCB (population forecast for Boden municipality, by school-form age group).
Boden municipality — history (school form: compulsory school)
Municipality-aggregated key figures from Kolada over the most recent 5 years. Shown as municipality average — not school-specific values — because Kolada reports financial and pedagogical metrics at school-form level per municipality.
| Measure | 2025 | 2024 | 2023 | 2022 | 2021 |
|---|---|---|---|---|---|
| Pupils | 2,601 | 2,645 | 2,614 | 2,692 | 2,688 |
| Merit value yr 9 | 214.7 | 211.6 | 222.3 | 211.3 | 222.7 |
| Eligibility for upper secondary | 63.7% | 63.5% | 60.6% | 62.5% | 64.4% |
| Pupils per teacher | 11.2 | 10.3 | 10.2 | 9.8 | 10.6 |
| Cost per pupil | 137,700 SEK | 134,274 SEK | 129,558 SEK | 122,080 SEK | 114,620 SEK |
Source: Kolada (Swedish council for municipal analyses).
Data sources
Skolkoll is built exclusively on public data sources. Each row below shows the source, fetch date, and which metrics come from it.
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Pupil count, qualifications, grades, teacher numbers per school
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Model-based expected results based on pupil composition
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Inspection decisions, remarks, complaints
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Fetch date is missing in dataset metadata; no school-register date is used as a substitute.
Population and economic data
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Municipal key figures, financial data per school form
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Fetch date is missing in dataset metadata; no school-register date is used as a substitute.
Property register, buildings, orthophotos (CC BY 4.0)
Methodology and definitions
- Skolkoll methodology (overview) — how data is fetched, validated and displayed.
- Skolkoll Score — calculation, weighting, interpretation guide.
- SALSA model — what it measures and what it doesn't.
- Qualified teachers — definition and data source.
- Corrections policy — how errors are fixed and documented.
Export
Download data for your own analysis. Files are CSV with UTF-8 encoding.