Kg goes from 3-6
Primary 6-10 (Y1-Y4)
Secondary 10 on. This is where the German system does your head in as at the age of 10 (or 9 dep on d.o.b.) in the 1st half of their fourth year at primary school (so after 3.5 yrs school) it is decided whither your child will takes A levels & attend university.
That's Gymnasium - grammar school.
Bavaria may be slightly different but here:
Or Realschule = vocational school till 16
or Hauptschule = dole queue fodder (I'm paraphrasing der Spiegel)
There is a different streamed school here which allows for children who fall between the 3 types and is generally much better with SENs, called Gesamtschule but don't know how they are in Bavaria.
Parents tie themselves and their children at times trying to get into Gymnasium, you need an Empfehlung from the school. Here it's not binding but may well be in Bavaria. I know from NN that the Bav way of life partic wrt schools is even more rigid than here.
In your shoes and facing ? more expat moves and esp if money's not an issue, I'd go for the International School.
We haven't even talked about ADHD. Schooling aside there are many wonderful things about living in Germany. Transport, health care, letting the children run around more easily, go to places on their own from an earlier age (not the same stranger danger and NO school run, they walk, bike, bus, tram) - but there is not the same perception of SEN.
Ds1 has a mild SEN. He's now happy at his new school but I was told countless times in hushed shocked voices by other parents (thinking I maybe didn't know as a foreigner) that I couldn't poss send my son to that school with those children. Many have SENs, ADHD etc. The attitude is that 4 yrs of primary "mit solchen Kindern" was enough, that's what the head told me when I said I thought the school sounded great and why was it so looked down upon...
I'm telling ya, it's barking.
And I know some of us go on about the school system here and it upsets some Germans but honestly, if your not on the sunny side of the system, it's crap.
Berolina has a nephew with ADHD (I think) and he's facing the secondary choice this year and facing Hauptschule/Sonderschule. Children with SENs and SNs are not integrated on the whole. No SENCO's, no IEP's, no teaching assistants...
There is more to school and more to learning than Noten. Sadly that's not the case here.