Read the other great reasons over at her blog post!
Blogging encourages student voice. First person writing lets the students share who they are.
Blogging creates a stronger connection with the teacher. I’m a better teacher when I know my students better. When they blog, I learn a lot about them and am able to design lessons that interest them. (This is an important part of differentiated instruction.)
Blogging gets students writing. The student who sent me flowers was literally unleashed. He had three required assignments, he wrote ten and counting. He ranted, he pontificated, he shared his thoughts — but he WROTE. And as he wrote, something magical happened. This student who didn’t really like essays loved blogging and sharing his hobbies and others responded.