In the past few years, I have been teaching classes on Introductory Microeconomics (at the PhD and Master's levels), Emerging Risks & Insurance, and Decision Theory & Games (both Master's level), Economics of Insurance, Economics of Organizations, and Introductory Industrial Organization (at Bachelor's level). I have furthermore offered PhD-level topics courses on strategic experimentation and a Master's-level workshop on Microeconomic Topics.
Learning by doing--the only way!