Modeling mastery as a set of skills to be acquired with prerequisites and requirements is clearly valuable. Visualization can serve as a map that guides learner

Modeling mastery as a set of skills to be acquired with prerequisites and requirements is clearly valuable. Visualization can serve as a map that guides learners. Universities employ this on a larger scale - degrees require classes that require passing grades and prerequisites. I like the idea of using it for smaller-scale learning like lessons, classes, and job training.