While I am having individual conferences today and tomorrow, you will read this essay about grades:
http://www.alfiekohn.org/teaching/tcag.htm
Afterwards, write a response to it on your blog, including the following points:
1- What is the author's main point / position / thesis?
2- How does he support that point?
3- What, if anything, does he say about opposing views?
Follow this with a response of your own in which you agree / disagree with the author's point and make your own about this issue.