ABSTRACT
As described in Chapter 15, concepts (schemas) are the bases of human understanding and reasoning. Concepts mentally represent things in the world. Concept categorization is the most pervasive cognitive process in everyday life (Rehder, 2003) as we access terms to describe what we are thinking or interpret what others say to us. Except for identifying instances of a concept, they are rarely accessed or applied individually. Rather, most forms of understanding require humans to associate combinations of concepts into relationships between concepts (Jonassen, 2006b).
