Design or case days provide an intense day long (or more than that) focused learning experience. We cover the design of these days elsewhere. This note is about the student experience itself and the growth that occur during the day.
Possible growth can in many possible areas. It can be growth in their executive functions, how to get their act together to pull off the day. It can be how to work within a group. It can be in the foundational skills associated with the course - how to do things, what to do, when to do it, what factors to consider, what assumptions need to be thought about, etc. It can be about how to learn about something in a compressed period of time (the what). It can be about how to recognize the early signals of good and bad decision making. We have seen these and many other types of lessons learned.
During the day, it is likely that growth will occur in any design or case day. Whether you want it to happen or not. The day is being done for a reason and there should be clear learning and growth outcomes driving the day. Some skills and growth will depend on scaffolding and multiple days to incrementally build up the learning outcomes. Are the growth elements the ones you want, expect? The days are a great expense if you think about it and they should be carefully aligned and designed.
Any growth will be ad hoc and very momentary, will not stick, unless the concept of growth is explicitly designed in and consciously thought about.