Describes the Space Shuttle Commander software package, which utilizes the dynaturtle microworld to teach elementary and middle school students about Newton's laws of motion. Design considerations for computer-based microworlds that represent a compromise between the philosophies of constructivism and direct instruction are presented. (91…

Discusses myths underlying the curriculum, teacher knowledge of the curriculum, and constructivist perspectives of the curriculum that need to be considered if curriculum reform is to succeed. Goals, pedagogical features, a typical session, and field test evaluation results for the ScienceVision hypermedia system are described. Sample screen…

Describes a study that investigated the effects of using different forms of computer-based feedback on high school students' learning of science material. Hypotheses tested are discussed, five feedback conditions are described, posttests are explained, and results are discussed in terms of the information processing effects of different feedback…

Reports on a naturalistic study conducted with 24 low-achieving high school biology students that determined how the teacher and students used two computer-based videodisk programs, a print-based activity, and a dissection laboratory to learn about frog anatomy and to conduct a frog dissection. Future research is suggested. (Contains 14…

Describes study that investigated achievement and motivation effects related to locus of control and learner control on seventh and eighth grade Hispanic students completing a computer-assisted instruction (CAI) science lesson. Use of the Intellectual Achievement Responsibility scale is discussed, and a questionnaire that assessed student…