Concept maps are graphical tools used to organize and represent knowledge in a hierarchical structure. They include concepts connected by linking words or phrases to indicate relationships. To develop a concept map, key concepts are identified and ranked from most abstract to most concrete. Closely related concepts are clustered and arranged diagrammatically, with linking lines labeled with propositions. Concept maps help connect new ideas to prior knowledge, provide a framework for organizing information, and can be used as a learning or evaluation tool.