Introduction. Knowing about learning informs our teaching -- 1. Deeper learning and better retention. Principle 1 : Desirable difficulties increase long-term retention ; Workshop 1.1 : concept maps -- Principle 2 : Meaningful and spaced repetition increases retention -- Principle 3 : Emotion and relevance deepen learning ; Workshop 3.1 : community-based learning -- 2. Actively engaged learning. Principle 4 : Multisensory instruction deepens learning ; Workshop 4.1 : the flipped classroom -- Principle 5 : Small groups engage students ; Workshop 5.1 : problem-based learning ; Workshop 5.2 : process-oriented guided-inquiry learning -- 3. Assessment. Principle 6 : Formative assessment or low-stakes -- Evaluation strengthens retention ; Workshop 6.1 : grading, summative assessment, and high-stakes evaluation ; Workshop 6.1A : creating assessment tools ; Workshop 6.1B : constructing rubrics ; Workshop 6.1C : tips for grading papers and essay exams ; Workshop 6.2 : soliciting midsemester student feedback to improve a course -- Appendix A : Course design workshops. Workshop A.1 : the syllabus ; Workshop A.2 : strategies for the first and last days of class -- Appendix B : Workshop on lectures and mini-lectrures. Workshop B.1 : planning and delivery -- Appendix C : Workshop on classroom discussions. Workshop C.1 : classroom discussions.