On average, every fourth student in the last decade has graduated ninth at Ersängsskolan without admission to upper secondary school.

It is worse than the average in the municipality, which shows that nine out of ten students pass the qualification for vocational high school, according to figures from the National Agency for Education.

- If you look at statistics with underlying factors, such as how many newly arrived students we have, parents' educational background and so on, we have a better result, says Ewa-Marie Huss, principal of the upper secondary school.

The purpose of the Swedish Schools Inspectorate's review is to see if the municipality or the private principal has done enough to increase the results.

At Ersängsskolan in Umeå, all staff have been trained to work in language development.

Hear more about it in the clip.