It's really tangled. The best way is to let your mother come to your city for the Mid-Autumn Festival and take a trip nearby. If she wants to, things will be solved. If this road is blocked, go home. After all, there is only one mother, so you should communicate well with the teacher. Just say I don't want to delay my child's study, but my mother is old and in poor health (if I can mention it). I haven't seen my child for years. I missed it. Filial piety is also a compulsory course for children. As for the children's lessons, you can make up for them during the holidays.