Existing student work in a Class Notebook to a new Class Notebook in Teams

Hi 

At the school I work at, we are getting all our staff to move to Teams and create Class Notebooks. When we created the new Class Notebook in Teams we were able to bring in the Content Library, Teacher Section however the existing work the students had completed or are working would not come across to the new Class notebook. Besides doing a Merge or a Move/Copy of different sections of the students work, is there another more efficient way of doing a information dump from one to the other Class Notebook