Using “Lack of Fidelity” to Improve Teaching

Author:
Anne K. Morris University of Delaware

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The author presents a procedure for learning from variations that occur when instructors implement lesson plans designed by others. This kind of variation, occurring in many classrooms every day, can provide a source of information for improving curriculum, both in terms of instructional activities for students and especially in terms of clarifications for instructors to support more effective implementation. The author provides detailed descriptions, in the context of a mathematics course for preservice K-8 teachers, for using implementation variations in a practical, research-based way to study and improve teaching. The goal is to build an accumulating knowledge base for teacher education. Examples are presented to illustrate how increasingly rich lesson plans, based on observing implementation variations, can move toward achieving this goal.

Contributor Notes

Anne K. Morris, 105B Willard Hall Education Building, University of Delaware, Newark, DE 19716; abmorris@udel.edu

(Corresponding author is Morris abmorris@udel.edu)
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Mathematics Teacher Educator
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