Ooh honestly I could talk about this all day, it's been such a paradigm shift in how I think. They basically "gentle teach" in the same way that I try to "gentle parent".
So to start with, there are high expectations and high standards of behaviour. All the times I've popped in (4-5 times, unannounced to drop stuff off etc) the classrooms have been busy but calm and focused. These high standards are coupled with the belief that children want to meet these standards. As such, the school doesn't use the words naughty, bad, disruptive, they only say disregulated. If a child is acting in a detrimental way in the classroom they take the approach of helping the child fix the problem in order to help them learn, rather than fixing the resulting behaviour.
But it all goes hand in hand with meeting their needs, so in the classroom under the whiteboard there are a stack of wobble cushions, a stack of fidget toys, there are sensory items to fiddle. The behaviour expectation is that children sit quietly on their spot in the carpet, so the tools are there to help them do so "Jayden, you look like you've got the wiggles- do you want a wobble cushion or a weighted toy to look after?", and so the child is encouraged to learn to self regulate their behaviour, rather than going in with a "you'll move to yellow if you don't sit on the mat". It empowers the child, lets them self advocate, rather than now giving them an extra worry of "I'm in trouble" on top of "I need to wiggle".
So you've got this positive feedback into the child's self esteem going on, and the kid now knows they're a good kid, and the next day the teacher has praised them for picking a wobble cushion on the way to the carpet and managing half the session without wandering. The day after that they manage even longer. The teacher then loudly tells the parent at pick up, "Mrs Smith, Jayden has has the most amazing day, he sat on the carpet nicely for a whole session. I was so proud".
And some days Jayden will get it right, and some days he'll need a bit of support. Sometimes he'll get cross at having to join in, and some days he will be the first with his hand up. But they just seem to take the attitude that it's ok. They treat them like little adults- you're having a bad day? Ok, what do you need, in this moment, to help with that? Five minutes peace? Some fresh air? A run round. Ok let's do that then.
The teachers teach the children to learn and settle themselves before they really start learning. It is honestly.... Fascinating. There is just so much respect and trust between the children and the teachers. My mind is honestly blown by it.