1) The document discusses a science teacher's use of blogging to connect students to class content, extend learning experiences, inform parents, and showcase student work.
2) The blog is used to connect students to engaging content related to topics covered in class, keep parents informed of class activities like dissections, and allow students to demonstrate their knowledge through activities and podcasts.
3) The teacher seeks ways to improve blog use, such as encouraging more student posting and journaling, and initiating other class blogs to further engage students in science.