Hi. I'm on supply in a lovely primary school. I'm generally coving ppa however I'm spending more and more time in one particular challenging class. There are quite a few children who are very disruptive. There main teacher is current off sick and the class is been covered by SMT. They have begun to put some strategies in place but these don't generally work. I haven't had much experience with such challenging classes and am wondering if anyone has any advice or strategies I could try.