Describes experiments which demonstrate how different diets affect the growth rate of earthworms. Procedures for feeding baby worms are outlined, the analysis of results are discussed, and various modifications of the exercise are provided. (CS)

Numerous examples of devices designed by primary school children are provided. The instructional methodology and classroom setting are also described. (CP)

Describes an earth science laboratory approach designed to involve students in an ongoing method of solving problems; student questions and discussion provide the basis for laboratory exercises. (Author/SL)

This inexpensive, effective chemiluminescence demonstration requires minimal preparation. It is based on the oxidation of oxalyl chloride by hydrogen peroxide in the presence of an appropriate fluorescent sensitizer. The reaction mechanism is not completely understood. (BB)

Identifies the characteristics and components of a quality laboratory program for secondary science students. Suggests approaches, questions, and activities that aim to provide challenging experiences in the sciences. Also provides a listing of recommended laboratory standards and procedures. (ML)

Current scientific and technologiical issues should be incorporated into more active classroom, laboratory, and extracurricular learning so that students can perceive the future as personally relevant. (MJL)

Presents position statements indicating the necessity of laboratory experiences for the teaching and learning of science in the elementary school. Three different perspectives are addressed: research, curriculum, and teaching. (DS)

Authors describe a biology course for nonmajors that appealed to student interests while retaining content integrity. The other philosophical foundations of the course were to increase student involvement and to conduct at least half of the laboratory aspect of the course at field-based locations. Details of transportation considerations,…

Describes the study of sandy beach zonations as a seashore activity for either high school or lower-level college courses in biology, ecology, or marine biology. Students first draw a profile of a beach scene and then collect specimens from the zones of the shore. In a laboratory, students identify their specimens and relate them to the beach…

Describes an assignment and the results of having elementary school students design their own interesting and exciting science classroom environment. (PR)

Details undergraduate physiology laboratory experiments that demonstrate mechanical properties of cardiac muscle, using strips from the ventricle of a rat heart. Includes procedures for obtaining length-tension curves, demonstrating the role of calcium in excitation-contraction coupling, and showing effects of several cardiovascular drugs…

Describes a performance assessment protocol that rates six goals: (1) methodology of research, (2) use of equipment, (3) accuracy in measurement, (4) application of concepts and formulas, (5) use of mathematics, and (6) completeness and clarity. Provides an example performance task evaluation sheet. (MVL)

Presents instructional methods biology teachers can use to make their presentations more interesting. Author describes variety of methods for introducing lesson on the heart and discusses use of metaphors, form, models, and fractals in instruction pertaining to circulatory system. Presents idea of using Capon's "The Supper of the Lamb"…