Introducing new concepts to learners in an order of increasing complexity appears to be beneficial for learning, but typically introduction of concepts does not always adhere to this principle. We examined whether introducing new algebra concepts in a contrasted manner or in an order of increasing complexity instead of a different more typical…

The complexity hypothesis suggests that the hierarchical arrangement of learning tasks is related to the complexity of the task. Using a definition of complexity based on an analysis of the rules governing performance on a task, the present study lent support to the hypothesis. (Author/GDC)

The strategy variables investigated were: 1) sequence, a presentation of instances according to a defined relationship of the stimuli--organized versus random; and 2) analytical explanation, a verbal statement presented with each instance which analyzed the presence or absence of the critical attributes. Concept learning implications were…