Responds to the criticism offered by M. Scriven of the call for a radical new approach to teacher evaluation made by M. Roth and K. Tobin, noting that more builders of evaluation theory are needed, especially builders of theory that can be useful as the starting point for change. (SLD)

Describes strategy analysis procedures which enable preservice teachers to implement science lesson segments in a manner that was consistent with strategies incorporated into science teaching models. Conformity to the model was uniformly high for phases related to preparing the learner, investigation planning, and data processing. (JN)