Research on learning and instruction of science has shown that learning environments applied in preschool and primary school rarely makes use of structured learning materials in problem-based environments although these are decisive quality features for promoting conceptual change and scientific reasoning within early science learning. We thus…

Problem-based learning (PBL) is widely endorsed as a desirable learning method, particularly in science. Especially in light of the method's heavy demand on resources, evidence-based practice is called for. Rigorous studies of the method's effectiveness, however, are scarce. In Study 1, college students enrolled in an elementary physics course…

Discusses the different varieties of rice and how these differences are important in cooking and health. Discusses the cultural and historical importance of rice. (YDS)

Investigates whether science permeates the design environment and is thus contexted within the other activities of collaborative management and technology. Focuses on which contexts gave rise to science talk. Studies a classroom with (n=33) students divided into seven teams. (Contains 46 references.) (Author/YDS)

Closing the Loop (CTL) is a science curriculum designed to introduce students to integrated waste management through awareness. This document presents five lesson plans focusing on developing an understanding of natural resources, solid wastes, conservation, and the life of landfills. Contents include: (1) "What Are Natural Resources?"; (2)…

Focuses on the implementation and evaluation of instructional strategies in a core science education methods course within a Bachelor of Education preservice program. Examines how a collaborative learning experience that incorporated components of problem based learning was implemented and how students reacted to and reflected upon this approach.…

Details a study exploring a problem-based learning framework used to develop preservice teachers' knowledge base for teaching and pedagogical reasoning ability. Emphasizes an undergraduate preservice science teacher education unit. Contains 30 references. (DDR)

The NASA "Why?" Files is a free annual instructional distance learning program that integrates science, mathematics, and technology. The program targets 3rd through 5th grade students and uses a problem-based teaching approach. This lesson guide includes four segments, each with objectives, vocabulary, video component resources, career ideas, and…

Reports on the views on problem-solving developed by prospective elementary teachers as a result of experiencing problem-centered learning in an integrated math-science methods course. Discusses four assertions related to students' attitudes toward problem-solving, their knowledge of problem-solving and problem-solving processes, and the role of…

For the thirty-sixth year, the Research and Theory Division of the Association for Educational Communications and Technology (AECT) is sponsoring the publication of these Proceedings. Papers published in this volume were presented at the annual AECT Convention in Anaheim, California. The Proceedings of AECT's Convention are published in two…

For the twenty-eighth year, the Research and Theory Division of the Association for Educational Communications and Technology (AECT) is sponsoring the publication of these Proceedings. Papers published in this volume were presented at the National AECT Convention in Orlando, Florida. The Proceedings of AECT's Convention are published in two…