Thursday, September 10 conversion day, classes follow a Monday schedule. This does not mean you have to convert.
Sunday- Tuesday September 13-15 no classes scheduled says the BC calendar of events but I would check with your professor http://www.brooklyn.cuny.edu/web/calendar.php
There is an App for Blackboard.
7 Big Changes Coming to City Schools This Year https://www.dnainfo.com/new-york/20160907/upper-west-side/7-big-changes-coming-city-schools-this-year
A website where you can register to vote.