Hey, how do I download it?
This is a warmer, and there is nothing to download. It's just an idea for your lesson, not a worksheet.
After a reading or lecture, have students write for several minutes about what they view as having been the “muddiest” or most difficult or unclear portion of the material. They can then confer with a peer before a general class discussion about the different “muddy points” students found and debriefing and clarification from the instructor.
With this method, students are not only clearing up any confusion but also gaining insight into their peers’ thinking processes while practicing reading and writing skills.