I use this assignment as an introductory activity to the drama unit. Students are asked to meet in their literature circle groups (my students read selected literature circle novels throughout the course) and create a reader's theatre script for a selected passage.
When introducing them to this assignment I have them read (and perform) "Riddles in the Dark" first as an example. It is an adapted reader's theatre script based on The Hobbit that you can find online.
Included in this bundle is the reader's theatre assignment description, criteria, grading rubric and a student sample script based on Aldous Huxley's Brave New World.