Poland provides up to five weekly hours of remedial instruction in Polish language and other core subjects to migrant youth …

„Poland […] provides up to five weekly hours of remedial instruction in Polish language and other core subjects to migrant youth with limited Polish language skills, for a maximum of 12 months following their arrival. Similar schemes exist in Hungary and Luxembourg. In Portugal, for instance, students with Portuguese language needs enrol in Portuguese as a second language classes and schools can benefit from additional teaching staff for this purpose. In cases with less than ten students with Portuguese language needs at a given school, students attend regular classes, but follow a specialised curriculum and benefit from support language classes.“
OECD (Hrsg.), Young People with Migrant Parents (2021), S. 25.