I think you need to break this down. When we work to change children’s behaviour we do it a step at a time.
Start with one thing that you want to change. From above…coming in from playing outside.
Set out, including the DC’s, how you are going to change this. Focus on the positives, with lots of praise when they achieve this.
Unless unsafe, ignore other behaviours.
You need to adopt strategies to help this happen. Apply strategies consistently.
Strategies to support them to come in.
Visual timetable of the day showing key event. At each point of change, look at the timetable together. Talk about, next we are playing outside, then it is bathtime.
Use language such as ‘first you play outside, then it is bathtime’.
Give a countdown, shine visually. Timer and ‘in 5 minutes it is time to come in, in one minute, it is time to come in’.
And when they do, massive praise.