The article explores how university teachers design their courses. The researchers studied 30 teachers from 16 Australian universities and found that design is a step-by-step process where teachers start with a basic plan and add details over time. Designing a course happens before, during, and after it is taught, showing that it is always changing. Reflection is important in this process. The researchers created a model to describe how teachers design courses, comparing it to other types of design. They also suggest areas for future research.