Don’t think of the assignment activities as doing the “homework” or you will miss the whole point of the class. There is no textbook. The main source of information about the topics comes from your online research and the discussions with other students. You need to make time to read and write over several days to ensure that others can respond to your postings and you can comment on theirs.
You really need to log in to the class everyday. The course is based on discussion participation. This isn’t something that you can do in a couple of hours before the due date.