This document discusses active learning and how to design active learning units. It defines active learning as learning that involves students and makes the subject matter relevant to their own purposes. Active learning facilitates participation and involves students' feelings as well as intellect for lasting learning. Benefits include reinforcing content, developing teamwork skills, enhancing self-esteem, and improving retention. The document provides guidelines for designing active learning units that include choosing topics, defining learning aims and tasks, and evaluating students. It stresses creating an enjoyable learning environment where teachers motivate and encourage students to have fun.