If your child is already going to school continue to give him a positive learning environment even at home because it will prepare him for the challenges he may encounter in the future with regards to school and in his daily life. You should also think of healthy activities like educational video viewing and play time at home. So it will be easier for him to adjust to school work better, I suggest you make things/activities organized and simple, routines, have a proper place for everything and always praise him for his process.