Moodle - Make Course Available to students
Instructors have the OPTION opening the course early for student. They can open the course up-to one week prior to the official start date.
But cannot require any-type of work done prior to the first day of class.
Step 1: Login to your course, locate and click the Setting at the top of the page.

Step 2: From the General tab, locate Course visibility and change from Hide to Show.

Step 3: At the bottom of the page, click on Save and display. Your course is now available to the students.
