Examined how programmed materials could be implemented to promote a higher level of process skill proficiency. Conclusions from this pre- and posttest study involving 55 undergraduate elementary science methods students were that review strategies did not affect science process skill proficiency and programmed instruction was more effective than…

Describes the effects of teacher subject-matter knowledge on classroom discourse at the level of individual utterances. Details analyses conducted in a year-long study of language in the classrooms of four new biology teachers. Among the findings are that these teachers talked more, asked more questions, and relied heavily on low cognitive level…

Presents a classroom activity where students vote on topics of interest and then discuss the top ideas through the use of science roundtable discussions. (PR)

Presents a laboratory activity for use during the first or second week of school that engages students in the basic principles of the scientific method. (PR)

Explains how Darwin's observations and experiments can be used to show the true nature of science and good scientific methods. (PR)

Discusses the principles of sustainability and how it relates to human impact on the environment. Describes modern society as a paragon of waste in contrast to natural ecosystems. (PR)

Describes experiments by Thomas A. Knight on geotropism. These experiments took place about 200 years ago and used a centrifuge. (PR)

Describes an interview-a-scientist assignment for preservice elementary teachers. Preservice teachers realized that scientists frequently repeat experimental work, that science is not neat and tidy, and that science requires patience and perseverance. (PR)

Presents activities and learning outcomes that came from a project studying the agricultural and architectural technologies of the Hupobi Pueblo who lived in New Mexico some 500 years ago. A large poster with the activities is presented. (PR)

Describes using the aquatic plant, duckweed, for open-ended investigations and learning about factors important in photosynthesis. (PR)

Describes the new public television series called "The Secret of Life," and explains how the program can be used in an elementary school classroom. Large color poster is included. (PR)

Students experience the distinction between observable fact and scientific theory by taking a critical look at how spaghetti can be sucked up into the mouth. A demonstration shows that air is needed to suck up the spaghetti but that the scientific explanation is not as simple. (MDH)

Presents an activity in which students model the processes of meiosis, fertilization, development, and birth using model creatures called reebops. Students breed reebops to analyze chromosome combinations. Makes recommendations for activity utilization and identifies the strengths of the activity. (MDH)

Describes activities in which students learn that it takes teamwork, problem solving, and personal commitment to save the environment. (PR)

Discusses the necessity of effective AIDS/HIV education in the secondary schools, its inclusion in the biology curriculum, and methods of educating teachers concerning the topic. Provides recent data related to AIDS and proposes that science teacher stress abstinence and behavior modification as possible solutions. (MDH)