This document summarizes various Kagan structures, which are cooperative learning techniques. It provides instructions for 18 different structures, including Stand Up, Hand Up, Pair Up; Mix Pair Share; Rally Robin; Rally Table; Quiz-Quiz-Trade; Numbered Heads Together; and Single Round Table. For each structure, it lists the steps students take, such as sharing answers in pairs, taking turns writing responses, or quizzing each other. The goal of these structures is to engage students in discussion, problem-solving, and peer teaching in a structured yet interactive way.