analogy
How does the brain learn? The question might seem too broad, and the answers might seem complex. But if we were to state it in a word, the answer would be Analogy.
A new concept is often best explained by means of an example or an analogy. It is not easy to come up with a good metaphor every time: Some educators and instructors are more adept at it, some less so. That said, we can list what to avoid while giving a learner an analogy to explain a concept.