Differentiation is the first movement. The learner begins by noticing distinctions. A child touches this object, then that object.
They begin to recognize differences: hot and cold, hard and soft, mother and stranger, sound and silence, safe and unsafe, one shape and another shape. In Piaget’s language, the child is forming and adjusting “schemas,” or inner patterns of understanding, through direct contact with the world. Learning begins by separating the world into meaningful parts.
Then comes integration. The learner does not leave the parts scattered. They begin to connect them. They see relationships, patterns, sequences, causes, meanings, and uses.
This is where “this goes with that” begins to emerge. In constructivist learning theory, learners actively build meaning by connecting new information with what they already know, sometimes fitting it into existing understanding and sometimes changing their understanding to make room for something new.
Then comes generalization. Once the pattern has been differentiated and integrated, the learner can carry it into new situations. They no longer only know this one thing in this one setting. They can apply the learning elsewhere. In educational psychology, this is closely related to transfer of learning: the ability to apply knowledge, strategies, or skills from one context to another.
Generalization is also tied to abstraction: the learner recognizes the deeper pattern beneath many particular examples.