Normal page as child of custom post type

I have a website with the custom post type school. I also have normal pages called Presentation, Team and Teachers.

What I would like to do is set the pages as children of the custom post type school:

mysite.com/school/presentation
mysite.com/school/team
mysite.com/school/teachers

I’ve been looking for a solution to do so but I found nothing clear and documented. I would prefer to avoid creating a normal page School to replace the archive page.

Any help would be much appreciated, thanks.