I think blogging as a genre must be a welcome relief to many people in place of the structured writing they were previously required to complete in formal classes or in a workplace setting. The posts are free-flowing and therefore easier to read. Most blogs and their correlating comments “read” like a conversation. As far as the writing goes, I believe that when people must write in expository form, they very often feel as if they should use the largest words and the most complex sentence structure they can, in order to impress the audience or to out-do a competitor (as in a debate setting).
Commenting helps the reader absorb the blog post, I think. It’s like taking notes in school. By that I mean that when one is an active participant in the learning process, or spends what people call “hands-on” time on any endeavor, s/he more readily remembers the material consumed. Of course, comments help the blog poster, too, perhaps to re-evaluate and polish her or his initial presentation.
I would like to think there is a blogging literacy, and I believe that most people realize they should do the best they can with the grammar, since these things go out all over the Web, and all over the world. After all, who wants to shoulder a bad first impression?
Blogging can facilitate learning because it is more enjoyable than many formal types of (required) writing, and therefore, most people are more amenable to spending quality time on their posts.
I did read five of the blogs and liked particularly the one on homework by Mr. Meyer. I agree with him that it’s not the AMOUNT of homework, nor is it the number of sample problems, but the type that is important. In other words, some students “get it” in class and for them, homework is just busy-work. For others who did not understand very well in the first place, struggling with twenty or thirty math problems after class, and without instructional support, will not accomplish their teacher’s desired result of student comprehension. It WILL create frustration, and perhaps, the student’s permanent dislike of, or aversion to, whatever subject matter s/he is attacking.