1. Communicate with students and parents. Parents always like to know what goes in the classroom. A teacher should have a link to a blog and post what goes on week by week. If they parents have questions, they can comment. Teachers like to know how students feel. Each student should have a blog and post how they feel about assignments and other things in the class. Teachers can also post upcoming assignments, homework, and activities.
2. Blog about the subject you teach. A teacher can post different things about the subject they teach. What they didn't have time for in class, they can post on the blog. If a student has a question, they can ask the next day. Teachers can also post links and study guides in the blogs as well to help students.
Those are just a couple of ways blog can help in the classroom. When students blog, they can write in their own voice, speak their minds, and ultimately express their opinions in a welcoming environment. It is a freedom of expression. It is also a way to connect with students and teach them to speak their mind.