Concepts are how we make sense of the world. When new information is perceived, the mind relates it to previous experiences. This allows us to assimilate new material and develop conceptual understanding. As we pass through life, our concepts change as the diversity of information we encounter increases. If our brain works in this manner then it is logical to teach in this way.
Whilst concepts provide the organizational power of the mind, knowledge is an essential element of them. Indeed, concepts and skills would not exist without the individual facts and experiences we have learned during our lives.
Some examples of concepts include: change, development, identity, and systems. These concepts allow connections to be made between subjects and act as the basis of interdisciplinary work.