The academy courses have a progressive mode of learning. What this means is that each module in the courses, and each topic in the module, must be completed in a sequential order. They can not be skipped, or fast forwarded.
They must be viewed and completed in sequence. The following chart for the engineer’s curriculum shows that three sub-courses for the engineer’s curriculum must also be taken in sequence. Each of these courses have modules with topics and must be again followed in sequence.
These courses have an unlocked period, where the enrollee can review previous level course topics during the unlocked period.