Answering the questions...

I think this activity starts with this phrase: "Our lives begin to end the day we become silent about things that matter."- Martin Luther King, Jr., because this blog is a way to express our ideas, opinions and things that we care about, so we don't keep them just for ourselves and we can share it with other people.

In this course, I could use the blog to tell my teacher or others whenever I don't understand something or don't agree with a subject or something like that.