One of the key features of Adaptive learning is that the student progresses through the material at their own pace. If you need all of the students to be at the same level at the same time, you are not doing adaptive learning—even if you are using computerized materials. The primary remaining hurdle for competency-based education is managing the logistics of large numbers of students all moving through their programs at different rates, with course completion divorced from seat time.

Also, because Skinner wrote about using "teaching machines"  everyone thinks that adaptive learning has to be done on computers. This… >>>