This is a manual that aims at introducing to teachers SCY-Lab. The manual is separated in two parts. Part A focuses on introducing SCY-Lab and its content to teachers, whereas, Part B focuses on presenting what a teacher should know before using the SCY-Lab from a technical perspective. Specifically, Part A includes information on what comprises the SCY-Lab learning environment and how it could be used for teaching, as well as information on the components of SCY-Lab for students and teachers. Part B includes information that concern the technical aspects of SCY-Lab, such as how to get started, what are the requirements needed to run SCY-Lab on a computer and what tools are included in SCY-Lab and how they are used. For the latter we include a series of videos.