Is this new? If not, then....
Where is the link to the calendar, within the site?
It should be very obvious on every Virtual Classroom page, or at very least the VC homepage.
I have not seen it available on any page I have visited.
It would seem that the the point is to make it easier to identify courses that fall on the days and times when you have time available.
If the link is not easily seen or found, then how does that make it the correct answer. Having something and making it readily available for all are two very different things.