'Taxes, after all, are dues that we pay for the privileges of membership in an organised society'. Franklin D Roosevelt
Yes you can. Registered Teachers can create classes, and decide which modules and/or activities their students will undertake.
When you create your class, you can select from the checklist by checking or unchecking each of the course items to choose which course items your students will undertake.
After you have created your class, you can update the course items in that class by clicking on 'Manage Classes' and then 'Edit' to access the checklist of course items.