A cooperative learning experience from middle school

In Middle School, we did lots of cooperative learning activities and projects. Some that I remember are: creating our own fake business, preparing skits about historical events, rotating-writing activities,and a trust walk.
Two stand out to me as really memorable, The trust walk, and writing a story in a group of four .
The trust walk was done in my 8th grade literature class after we read The Miracle Worker. The Miracle Worker is a biography of Hellen Keller. The Trust walk was a way to experience the way that Hellen may have felt being blind and having to trust someone else for guidance. We got to blindfold one another (one at a time of course) and lead one another around the whole school, wherever we wanted to go. It was really a fun and different experience.
The other group project that I remember was a short chapter book that we wrote as a group. The first student would start the story, and write a chapter or two, then pass it on to the next student. The next student would not be allowed to change anything, but would add on the next chapter or two however they pleased. The process went through all four students in the group. Each student would have a few nights to do their part of the story. After the rough draft of each section was done, we did peer editing. Then we each did final copies, complete with intermittent illustrations. Finally, we all brought our finished parts of the story and bound them into a finish book. It was really fun to see how the collaborations turned out.