1)MPA generally focuses on public management and general administration, but if there is an education management major, it may be related to public management in education.

2)EDM generally focuses on education and general education system, but if there is an education management major, it focuses on the management of education field.

3) Many famous normal universities have EDM in-service master courses in front of them. Please go to the school website for details.

I hope it works for you.