My sister works in one of those "tards included" schools in Germany. It - doesn't - work. You basically have a class of between 25 and 30 kids, 5 of those have some sort of learning disability and 2 or 3 need constant attention or they either won't understand anything or worst case they'll fuck shit up constantly.

Now normally you have 2 teachers per class and if you are lucky 1 aide (who could be anyone from some high school girl helping out to an actually qualified person).
Most of the time though it's 2 teachers, one running the lesson, the other one walking around helping out. But there are about 8 kids who definitely need help all the time. Meanwhile, 1 of those 3 very special kids is throwing a tantrum, making it impossible for anyone to concentrate. When he has finally calmed down, some of the normal kids have decided to chime in and throw stuff at each other. All this noise has severely intimidated a shy special girl who is now sitting underneath the desk, crying, sobbing and rocking back and forth.

Now that is a good day. What happens though if the 2nd teacher is sick? Tough shit, that's what happens.
So as much as I like the concept of these schools, they aren't really helping anyone.

I went to a "Non-mainstream" school in the UK, had a much better set up. I didn't really need to go there, just had mild aspergers and had problems in my first high school. I had learning support follow me everywhere which is embarrassing as fuck. I got picked on by one of learning support staff, that was ignored by the rest of the teachers and I refused to go back. Moved into new school a few months later.

How they operated was most classes had between 5 and 10 kids, one teacher and if there was hard to handle kids or a troublesome class in general 1 learning support person. My class had 4. The school was actually alright, very patient teachers of course. Had some really badly effected kids though, people who would never have responsibility EVER. Couldn't stand it by the end though, still don't like socializing with autistic people because of it.