To generate all of the tables, indexes, FK's, etc, just right click on the database in the Explorer window, click on "Tasks", and then on "Generate Scripts".

This (generating scripts for everything in the database) is , in my humble opinion, one of the worst ways to teach developers about relationships and DRI. It's much easier and effective to make a simple example using two or three such tables along with the "Diagram" functionality in SQL Server. That way, they don't actually need to know much about the tables and can concentrate on learning about DRI, instead.