— core concept of ~ you must master the prerequisites before moving on
achieving a high level of competence (e.g., 90% accuracy) in prerequisite knowledge before moving on to new material
— wiki
Pervading all of the augmentation means is a particular structure or organization. While an untrained aborigine cannot drive a car through traffic, because he cannot leap the gap between his cultural background and the kind of world that contains cars and traffic, it is possible to move step by step through an organized training program that will enable him to drive effectively and safely. In other words, the human mind neither learns nor acts by large leaps, but by steps organized or structured so that each one depends upon previous steps.