This document discusses different ways of arranging students for classroom work. It introduces four main arrangements: pairwork, groupwork, pyramid, and cocktail. Pairwork involves students working in pairs, either openly sharing with the class or closed without sharing. Groupwork is similar, with groups of students working together. Pyramid and cocktail are specific group arrangements where students find other group members based on certain criteria. The document discusses advantages and disadvantages of pair and groupwork, as well as engaging students in these activities. It provides examples of effective and ineffective group behaviors. Later sessions will explain the pyramid and cocktail arrangements in more detail.