Literature Circles address the four lenses of learning simultaneously!

Students come together to discuss their individual interpretations of a short story, novel, poem, or piece of non-fiction.

Social lens= students all discuss in groups of 5-7 (Summarizer, Discussion Director)
Meaning-centered lens=students are encouraged to make connections with their real-world experiences by sharing (Connector)
Human-centered lens=students' voices are all equal and are all heard (Illustrator, Discussion Director)
Language-based lens=students are reading, writing, speaking, and listening

Check out this link for the basics!
http://www.edselect.com/literature_circles.htm
http://olc.spsd.sk.ca/DE/PD/instr/strats/literaturecircles/index.html

The NCTE site is the most comprehensive site for all grade-level literature circle materials.
Check out the Roles of a Film Crew on the resources page:
http://thinkfinity.org/PartnerSearch.aspx?Search=True&orgn_id=9&subject=all&partner=all&resource_type=all&q=literature%20circles&grade=all
http://www.readwritethink.org/resources/index.asp

Elementary literature circles
http://www.teachersclubhouse.com/litcircles.htm
http://www.readwritethink.org/lessons/lesson_view.asp?id=19

Explanation of High School Literature Circle Roles


Literature Circle role Sheets--Elementary