What is grandschool?

Answer 1

GrandSchool is a software system providing messaging for parents about the achievement of their children. Moreover Grandschool makes it possible to generate the schedules for each teacher and each class automatically.

Answer 2

"Grandschool" does not appear to be a widely recognized term or concept. It could potentially refer to a specific educational program or institution, but without more context it is difficult to provide a clear answer.