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.
Direct students to read assigned material in class, individually highlighting what they see as key portions. Then they should sit in silence (like at a Quaker meeting) until someone volunteers to read his highlighted material out loud. Others then follow. End with discussion and then a brief writing about what was learned from these key passages.
This method gives students not only practice in finding main ideas in a reading but also in gaining insight on what others consider key points. They also practice discussion and reading skills.