This document summarizes key learnings from a design thinking action lab course. It discusses three main lessons: 1) The importance of prototyping and iterating on ideas rather than assuming the first solution is perfect; 2) The importance of empathy in understanding problems from others' perspectives; 3) Learning a new way to frame problem statements that stimulates varied solutions. It also outlines the course process, including using empathy maps to understand user needs, defining problems through interviews, ideating solutions, and prototyping and testing ideas with stakeholders. The document ends by discussing how the design thinking process could be applied in a real-life context of designing training programs.