The document outlines the key elements of an effective Supplemental Instruction (SI) session, including using collaborative learning techniques that encourage students to work together and rely on each other's collective knowledge. An SI leader should talk for less than half the session duration, allow students to contribute most of the content, and implement opening and closing activities as well as facilitation techniques like redirecting questions and checking for understanding. The document also lists assignments for an upcoming SI training, such as exploring the relationships between SI leaders and students, professors, and supervisors as well as introducing SI to a class and demonstrating how to transition from a lecture to an SI session.