English or German speaking school in Poznan

Hello everyone, I need your advice and experience regarding schools in Poznan. My children, 14 years old and 9 years old, are German-speaking and speak English because they go to an English school. We will probably move to Poznan for 2 years.
Could you please tell me about your experiences with the English and German-speaking schools in Poznan?

(International School of Poznan, The British School.... are there any other alternatives?( What are these schools like anyway?
Thank you very much!

I sent you a private message as to your query the other day. Have you received it?

Perhaps it would be a good idea for your children to start learning Polish too, if you plan to permanently live in Poland. The younger they are, the easier and faster it will be.

Right on, Ron2!