In case of problems at school, you should always first contact the class teacher of your child. Together, you can advise on what to do. The class parent speakers are also contact persons, if you need support. If you cannot solve the problem with the class teacher, you can contact the headmaster. If you cannot find a solution here, you can contact the responsible school supervision in the state school office in your region.
Contact for questions of everyday school life in Rheinland-Pfalz: https://eltern.bildung-rp.de/ansprechpartner-fuer-fragen-im-schulalltag.html
You can find the responsible contact person in the school area in Rheinland-Pfalz under the search function, if you enter the name of the school and the town: https://addinter.service24.rlp.de/cgi-bin-inter/schulen1.mbr/auswahl
You will also receive advice and support from the parents’ association:
Landeselternbeirat Rheinland-Pfalz https://leb.bildung-rp.de/