Hi, I’m not sure about how long teachers stay with their classes in your area, but it sounds like the 3rd grade teacher made a connection. It might be worth seeing if you can meet up with the 3rd grade teacher and find out what they felt made the biggest difference for your son. If he has a different teacher now maybe you could get the two teachers together to work on some strategies for him. If he still has a good connection with that teacher you can use that connection to help to build a more positive attitude to his school work, maybe taking work he is particularly proud of to show that teacher. it doesn’t take a lot of extra time for anyone, but can make a difference.