Discusses the value of electrophoresis in the fields of protein chemistry and biochemistry. Describes how to build an inexpensive electrophoresis setup for use in either research or teaching activities. Details the construction of both the separating device and the power supply. (TW)

Presents a series of activities that use dinosaurs as a theme for teaching biological and geological concepts. The activities can be adapted for use with middle school through college level biology students. Exercises address such topics as: evolutionary relationships of vertebrates; Mesozoic ecology; animal tracks; and mineral replacement…

Surveys the present status of science instructional software in the United States. Describes project efforts at the University of Pittsburgh on the development of intelligent tutoring systems (ITS). Explains the major components and provides microworld examples of ITS. Includes the software evaluation instrument and summarizes the evaluation…

Explains a formal scheme for analyzing biological communications for implicit structural themes using principles of kinetic structural analysis. Presents study findings which focused on the role of sequential communication structures for enhancing reception learning of knowledge and conceptual schemes. (ML)

Determined if a written, persuasive communication would positively affect the attitudes of preservice teachers (N=98) and if the communication would differently affect subjects rated on three levels of self-esteem. Results indicate written persuasive communication could change the attitudes of the preservice elementary teachers in this study. (JN)

Includes the complete listing for a computer program which draws the best curve to fit calibration data obtained from a set of five standard solutions. (DH)

The study sought to ascertain whether four structurally different instructional strategies would have statistically significant differential effects on the science and reading-language skills of seventh-grade students. The findings indicated that the three experimental strategies and one control method did have differential effects on the…

Presents the information and opinions obtained in a survey of the penetration made by technological and socio-economic aspects of science in English schools. Findings indicate that technological, social, environmental, and economic aspects received greater emphasis in further education institutions than in secondary schools. (ML)

Describes a lecture manual for an introductory soil course, how it is used by students, and how it affects student learning. Students indicated that the manual and its condensed lecture material, exam schedule, and grading procedures were beneficial to their learning in the course. (ML)

Describes a freshman chemistry experiment designed to introduce scientific methodology, provide practice in measurement skills, and illustrate a fundamental chemical relationship (conservation of volume). Provides the experimental design, a materials and equipment list, sample calculations, and results. (JM)

Describes a study conducted to investigate the learning styles of Native American students enrolled in college-level biology courses at College of DuPage (IL); to implement pedagogical changes based on resulting data; and to develop suggestions for science curriculum modifications. (AYC)

Describes the construction of a chemistry laboratory. Also discusses the place of science in school technology teaching, a study of students' understanding of simple quantitative relationships in chemistry, and the objectives of school physics. (JN)

Investigated the development of formal reasoning among students (ages 10-18 years) from predominately White, middle-class communities located in rural, suburban homogeneous, and suburban heterogeneous areas. Results indicate clear differences among communities in formal reasoning ability. Implications for using science instruction to promote…

Describes an operative model of secondary science curriculum development (the Secondary Science Curriculum Review-SSCR). Explanations of the levels of organization, styles of management, and role functions are stated. Characteristic elements include teacher participation, group autonomy, and shared decision making. Interaction and consultation…

Discussed is the deliberative process--the verbal interchange that is carried on, usually by a group, with the intent that some kind of curriculum plan, policy, or program will emerge. A case study involving a curriculum committee deliberating over a new science program for their Ontario (Canada) school board is presented. (RM)