The communication done largely via UR's LMS, namely Blackboard,
which is also where student grades and any course documents are
generally stored.
However, as a heads-up if you are enrolled and considering
starting to come to the course after the term has started, or if you
are considering adding the course after the term has started, please
do be aware that you'd be starting with 0% grades for each missed
attendance and for each missed graded exercise/etc. (and there will be
many graded exercises/etc. during the course). So if you are taking
the course please attend from the first day of classes, and if there
is room and you wish to add the course after the term starts, do be
aware of the above.