Investigates the relationship between science and technology in industrial research laboratories, comparing the lab as "ivory tower" with the customer-oriented science approach. Describes similar patterns in science and technology curricula. Concludes that mutual commitment and shared project work would benefit integration of science and…

Considers some consequences of altering intracellular calcium supply by magnesium concentration changes. Focuses on using this procedure as an exercise with allied health students as they witness therapeutic uses of magnesium and other calcium entry inhibitors. (DDR)

Describes a project in which students create wind machines to harness the wind's power and do mechanical work. Demonstrates kinetic and potential energy conversions and makes work and power calculations meaningful. Students conduct hands-on investigations with their machines. (DDR)

Describes a set of laboratory activities in which students construct a model for the relationship between potential difference (measured in volts) and current (measured in amperes) in a DC circuit with a single resistor. (SAH)

Introduces the chicken wing project in which students assess the microbial contamination of chicken wings for the safety of foods. Uses the colony counting technique and direct wash fluid examination for determining the microbial contamination, and investigates methods to reduce the level of microbial contamination. (Contains 14 references.) (YDS)

Points out the difficulties of teaching evolution and recommends using simulations to circumvent these problems. Uses artificial organisms called caminalcules for teaching which allows students to focus on principles without preconceived ideas. (Contains 16 references.) (YDS)

Discusses revisions in general chemistry laboratory to include group project work. Describes evaluation techniques and sample projects. (MKR)

Explores associations between students' (n=1,592) perceptions of their chemistry laboratory classroom environment and their attitudes towards chemistry. Findings indicate significant associations between the nature of the chemistry laboratory classroom environment and the students' attitudinal outcome. "Integration" and "rule…

Laboratory schools for preservice teacher education are challenged by operational and philosophical dilemmas such as equity and increasing public school placements. Professional Development Schools face similar challenges in becoming institutionalized. They need strong connections among schools, colleges, and communities; a balance of innovation…

Presents the results of a study analyzing students' gestures and scientific discourse by supporting three assertions about the relationship between laboratory experiences, gestures, and scientific discourse. Discusses the implications for laboratory experiments which students should attempt to explain while still in the lab rather than afterwards…

Discusses procedures for investigating animal motion and makes suggestions for conducting a field or laboratory experiment using video. Recommends using nature videos to perform motion analysis. (YDS)

Explores using corn seeds to demonstrate plant growth and development. This experiment allows students to formulate hypotheses, observe and record information, and practice mathematics. Presents background information, materials, procedures, and observations. (SAH)

Modifies an extended lab activity from a cookbook approach for determining the percent mass of water in copper sulfate pentahydrate crystals to one which incorporates students' prior knowledge, engenders active mental struggling with prior knowledge and new experiences, and encourages metacognition. (Contains 12 references.) (ASK)

Develops and modifies a series of 11 lab activities designed to strengthen and build science laboratory and inquiry skills for students in physical science classes. Includes a figure that summarizes the sequencing skills and concepts developed by these lab activities. (ASK)

Explains the teaching opportunities, especially in science activities and laboratory experiments, of using technology in science classrooms. (YDS)