Conceptual knowledge refers to the understanding of concepts, principles, theories, models, classifications, etc. . It is the knowledge of, or understanding of concepts, principles, theories, models, classifications, etc. that we learn through reading, viewing, listening, experiencing, or thoughtful, reflective mental activity. Conceptual knowledge is also referred to as declarative knowledge.

Conceptual knowledge is different from procedural knowledge, which refers to the knowledge of how to perform a specific skill or procedure. Procedural knowledge is knowledge of following steps, specific steps that need to be followed to perform a certain skill.

Conceptual knowledge is important in various fields, including the workplace, education, and mathematics. In the workplace, conceptual knowledge can improve business results. In education, conceptual understanding can help students take what they learn in class and apply it across domains. In mathematics, conceptual understanding broadly refers to a deep and integrated grasp of related ideas. Students with conceptual understanding of mathematics can apply and adapt prior knowledge to new tasks, making math applicable beyond solving just a single math problem.

Conceptual knowledge is important because it provides a strong foundation on which further learning can be built. When there is conceptual understanding, it is easier to see connections between different ideas and one has to remember less. Conceptual understanding also supports retention because facts and methods learned with understanding are connected, making them easier to remember and use.