What is active learning? What is the scientific evidence about it in the classroom? What is the lecture-textbook trap? What are the alternatives, and how difficult are they? What about issues such as "first contact", and linkages between before-, during-, and after-class. Is there a motto about student reading? What are the rewards of active learning for both teachers and students? How much inertia is there? I will address these questions based on pedagogy developed in 17 distinct university courses at all levels over 20 years. And there will still be plenty of time left for discussion.