the Jigsaw Class is a way to make the students work in groups of peers. The goal is to make them learn to work collaboratively and recognise each member of the class as a valuable partner, whatever his differences or problems. The method aims at accepting cultural diversity, reducing competition between the students and creating a cooperative spirit.
in short :the jigsaw class in 10 Easy Steps
http://www.jigsaw.org/steps.htm
implementation tips (how to include any type of student)
http://www.jigsaw.org/tips.htm
the method (in 59 .pdf pages)
http://www.jigsaw.org/basics.pdf