After several debates with the teacher and his former class teacher, I came to the conclusion that it is not worth trying extremely hard to achieve significant changes in him, because this cannot be achieved without the cooperation with his parents. He is indifferent to the parents and claims that any mistake is on the side other than his (this was also the reason for moving to another class).
After several debates with the teacher and his former class teacher, I came to the conclusion that it is not worth trying extremely hard to achieve significant changes in him, because this cannot be achieved without the cooperation with his parents.