The 4 L's is a poster for the expectation of what should take place during 'elbow time' or 'turn and talk' time. With clear expectations outlined on this poster, as a teacher, you can establish a protocol that will work throughout your school year for all content areas. This file is ready to print, and is self explanatory in teaching - once you purchase the file. It's been incredibly effective in my classroom.
This is a strong Classroom Management protocol.
As a teacher, you create the expectation - and rich discussions will develop as students follow the expectations.