1. Starting in the course platform, click on the "Modules" page on the left-hand side menu.
2. Scroll to the assignment you'd like to assign to only specific students or sections of your course.
3. Click on that assignment, and then select "Edit" from the upper right-hand side.
4. Scroll down to the "Assign" box.
5. In the "Assign to" field, remove "Everyone" and enter the name of a student or a section of your course.
Save, and you're set!