HE Instructor Knowledge Base URL: http://cmg.screenstepslive.com/s/MacmillanMedia/m/52444/l/609222
By default, labs will be available throughout the semester, but you can easily assign your own start and due dates.
Go to the Assignments page
On your Courses page, click the title of the section where you want to add due dates to your labs.
Click Set Due Date
Click the Set Due Date link on the right for the lab you'd like to update.
Enter the desired date(s)
Click in the Start Date and Due Date fields to type or use the calendar icon to select dates from a calendar.
Students will only be able to access the lab and lab assignment between these two dates starting and ending at midnight PST.
You can repeat this process to change or remove these dates at any time.