This blog impressed me because the teacher not only talks about what the children are learning in class and from classrooms around the world, but she also gives the children a page where they can "write" about their own day.
The KinderKids' blog (Kindergarten)
I liked this blog because it asks for input from the blog viewers. Many posts ask for readers to participate in whatever lesson the class just learned about. Example: "Can you help us find more shapes".
Manaia Kindergarten
This blog seemed to be mostly for parent information (which is a good way to communicate with the parents). But the more I looked at the blog, the more I saw that it shows/talks about what the children are learning in ALL areas of development. The academic lessons are in there, but so are things like physical/social development and talents of students.
RSS
http://blog.betterthanburgers.net/
http://www.macaroniandcheesecake.com/