How much time should you allow for creating an in-depth module, which includes Facilitator and Participant Guides with all the additional "stuff?" The industry standard, or a good rule of thumb, is forty hours of development for every one hour of instructor-led training. So, a four hour class can take as many as 160 hours or four weeks.

That's 400 hours (10 weeks) of development time for a new module with 10 hours of teacher-managed time, which feels about right. I've never measured the amount of time for developing or updating a module because I have been busy researching how to do it well, rather than how to do it quickly. At times there has been a need for a rapid approach due to circumstances beyond my control, such as a late change of platform. Shortage of time does not create a great learning experience, though I've been grateful for students who have been brilliant critical friends.