A “theme” or “composition” is a writing with a purpose, not necessarily to make a point or state a moral. It could be a story (narrative).
An “essay” is a kind of “theme” or “composition,” with form and content–and a purpose.
(Blogs are “compositions,” of course.)
A writing course has a goal: to allow those enrolled to have the opportunity to do better writing than before. It’s that simple.
Or, if not “better,” then to learn more than they knew before. And, if they know it “all,” then to produce a product worthy of them, exhibiting knowledge and skills–and art.
Crafting an essay or theme or composition (or blog) is not easy for most. Composing and writing this piece requires awareness of what has been learned and an ability to use drafting, revising, and proofing (editing) skills (to say nothing of using a keyboard on a computer, perhaps, even, to transcribe from a hand-written rough draft).
The basics of writing knowledge we learn by and through sixth grade–if all goes well. After that, it’s a matter of chance and choice: having a good foundation, choosing to learn, having the opportunity to “get” learning, staying healthy, being subject to many other variables.
Note that all compositions reflect care, concern, and competencies:
Caring about self and goals
Concern for a subject
Competencies in language skills.
Bloggers must ask:
What do I care? What’s the point of doing this?
Why should I do something “stupid”–ever? Like write about a dumb topic I really am not concerned about?
Why should I care about my language or punctuation or spelling? Do I really have to learn all the rules of such a difficult language? Do I want to exhibit my confidence and competency–or ignorance? (And who really cares about who and whom?)
The point to all of this:
It is as simple as that.