Some concepts have both everyday usages and specific disciplinary uses, and they may not be the same. In music, students learn to identify musical passages as being either a part of or not a part of the romantic period of music. Art students must identify paintings as belonging to the class of impressionist painting or as not belonging to the class.
Young learners learn to identify squares as squares, but disqualify circles as squares.
Most teachers have a pretty good idea of what constitutes the concepts they are teaching, but a thorough analysis allows them to give clearer definitions, more and better examples and non-examples, and to predict the errors students will make. In order to analyze a concept, the teacher must first define it. A concept definition includes its superordinate class along with the critical attributes of the concept. The superordinate class is the class of which the concept you are teaching is a member. The superordinate is the level directly above the level of the concept you are teaching.