Book excerpt: The Teacher’s Guide to Scratch – Advanced is a practical guide for educators preparing sophisticated coding lessons and assignments in their K–12 classrooms. The world’s largest and most active visual programming platform, Scratch helps today’s schools answer the growing call to realize important learning outcomes using coding and computer science. This book illustrates the expert-level potential of Scratch coding, details effective pedagogical strategies and learner collaborations, and offers actionable, accessible troubleshooting tips. Geared toward the advanced user, these four unique coding projects will provide the technical training that teachers need to master Scratch, feeling comfortable and confident in their skills as they unlock the program’s full potential for themselves and their students. Clear goals, a comprehensive glossary, and other features ensure the project’s enduring relevance as a reference work for computer science education in grade school. Thanks to Scratch’s cost-effective open-source license, suitability for blended and project-based learning, notable lack of privacy or security risks, and consistency in format even amid software and interface updates, this will be an enduring practitioner manual and professional development resource for years to come.