The instructional design presented in this article discusses a procedure for arranging and sequencing examples and nonexamples for concept teaching in the classroom. Concepts are divided into two types: definition and observation. A definition concept is one in which the critical attributes are determined by the definition, e.g., war. Observation…

An experiment replicated and extended a previous study on the value of negative instances in concept learning (i.e., an instance of something which does not exemplify the concept helps to make clear what the concept is). In this experiment, the concept to be learned was "adverb". The subjects were seventh grade students. Some groups of subjects…

Results indicated that negative instances were an integral part of concept acquisiton. The relationship between the positive and negative instances was based upon similarity of irrelevant attributes and sentence difficulty. (Author)

Results from the data analysis show that children learn mathematical concepts for clear cases, and that an analysis of attributes common to examples of a given concept is not a prerequisite to concept formation. The protocol findings provide information as to why this may be happening. (Author/PN)

The proposition was investigated that concept learning is a twofold process: acquisition of a prototype and development of generalization and discrimination skills. The assumption that formative evaluation procedures are necessary when attempting to prepare better instructional treatments for improved student performance was tested. (Author/GK)

Two computer-based instructional design strategies were investigated to improve the two-phase process of concept learning by being response sensitive to error patterns. The first strategy determined the format of examples by adaptive or fixed selection; the second strategy adjusted the selection according to rules of generalization and…