This document discusses different teaching techniques including exposition, brainstorming, and buzz sessions. Exposition involves the teacher giving new information to promote thinking among students. Brainstorming allows students to generate many ideas without criticism for a short time. Buzz sessions split students into small groups to discuss a topic and then report back, aiming to develop critical thinking and problem solving skills. The document provides details on how to organize and conduct buzz sessions, and notes potential advantages and disadvantages of each technique.