Hi @Olha_from_m
Your son is currently at stage two of DaZ classes. While stages one and two can be completed in a year, some school pupils need longer to get to stage three, where they are fully integrated in the school lessons and only receive additional German tuition if necessary.
You refer to a school director and a school principal. This is generally just one role, known as Schulleiter or Schulleiterin. The Schulamt will base their decision on what his teacher and/or school principal feel is appropriate so I do not understand why their recommendations were disregarded.
You should have consultations about your son’s progress called Bildungsberatung with the school over the course of the DaZ classes. His teacher should discuss together with you and your son about how he’s doing with the language and when he can move to stage three of DaZ.
Your son is at secondary school level. The Schulamt does not assign a particular school to him. At primary school level, it is determined according to what school district. At secondary, you are free to apply to the schools that your son would like to go to, as long as he fulfils the requirements (i.e. the recommendation ‘Bildungsempfehlung’ for the Gymnasium if he wishes to go to one). You do not have to wait until the end of school year. For example, if someone moves to a new city during a school year, they also have to apply at a school of their choice and are not assigned one by the Schulamt.
For young migrants between the ages of 12-27 there are youth migration advisory services (JMD – Jugendmigrationsdienste) throughout Germany. They have experience in dealing with schools. Here you can **** for one:
https://***-jugendmigrationsdienste-de.translate.goog/?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=wapp
If you feel your son if being treated unfairly with respect to other school pupils, then you could discuss this with an anti-discrimination office:
https://***.antidiskriminierungsstelle.de/EN/we-offer-advice-to-you/we-offer-advice-to-you-node.html
The services are for free, in English and confidential.
You say that his grades are good. If, however, his German language ability still needs to improve, then you could organise some extra tuition (in German ‘Nachhilfe’) for him. Depending on your financial situation, this tuition can be paid for by the Jobcenter or Sozialamt.
Please note that school education in Germany is a state matter. Each state can regulate things like DaZ slightly differently, although the information I have provided should be more or less the same throughout Germany.
Best,
Éanna