One component of Pennsylvania's Science for the Seventies Project, an experimental science curriculum for elementary schools which makes extensive use of instructional television, was an evaluation which compared the effectiveness of the project to that of existing instructional programs. As part of the evaluation, a model was developed and…

The purpose of this study was to determine the relative effectiveness of three different types of visual devices in an instructional program designed to teach an understanding of selected theoretical science concepts to elementary school children. The visual devices were prepared using Bruner's three modes of representation (enactive, iconic, and…

Reported is an evaluation of the Child-Structured Learning in Science (CSLS) Curriculum using the intellectual models of Piaget and Guilford. A cognitive test instrument was designed to measure cognition of figural classes (CFC), convergent production of figural classes (NFC), evaluation of figural classes (EFC), cognition of figural relations…