Describes a study of fifth and sixth graders that investigated the effects of cooperative training and ability grouping on microcomputer learning. Results on four measures of achievement did not support the use of cooperative learning or ability grouping to enhance achievement in computer-assisted instruction. (Author/LRW)

Describes the orientation and management of a science hotline managed by the University of Kentucky for the benefit of teachers. Results include a more positive public image of science and the creation of links between academic scientists and precollege teachers. (DDR)

Provides rich description of the biological diversity found in a 30-mile section of Nebraska known as the "biological crossroads." Argues that the seven major associations of the Niobrara River valley provide a great classroom. Includes a complete listing of plant species. (DDR)

Presents a series of laboratory exercises designed to introduce students to a realistic experience in biological research that is feasible with large numbers of beginning biology majors. The exercises center on the study of alkaline phosphatase. (DDR)

Defines approaches to inquiry-based science teaching and describes many ways in which to conduct this kind of science instruction. Argues that with science reform underway, opportunities exist to transform classrooms into environments with active learners engaged in inquiry. (DDR)

Describes a teacher's experiences with Global Lab, which is depicted as a real-world networked science laboratory connecting individuals investigating global and local environmental change. Focuses on techniques to monitor indoor air quality. (DDR)

Although museums are considered optimal venues for informal learning, this study concludes that most school classes visiting museums are restricted and structured, teachers use mainly task-orientated teaching practices, and the museum activities are rarely linked to topics being studied at school. A research-based framework to guide teachers in…

Proposes a model that displays the five components of the statistical problem-solving process. Focuses on the collection of coins in sets by mint location and fully describes the procedures. Includes ideas for data collection and analysis. (DDR)

Compares the acquisition of the syntax of negation in first-language development and second-language acquisition, particularly the acquisition of colloquial French and German by native speakers of Spanish. The comparison is intended to shed light on the principles and mechanisms underlying first- and second-language development. (67 references)…

Describes an educational program that asks students to attempt to prove that the earth is spherical and that it rotates. Presents tips to pique student interest and charts related to sensing the spin, nonrotation notions, flat earth fallacies, evidence that the earth is spherical and rotates, and the role of watersheds in proving that the earth…

Examines learner strategy in two English-as-a-Second-Language classes in Singapore; one class received instruction in asking higher-order questions, whereas the other did not. The treatment class asked significantly more higher-order questions and provided significantly more elaborated responses during small group discussions. (51 references)…

Illustrates the construction of conceptual models on pressure and flotation using high school students' previous ideas on these concepts. Identifies three models and uses them to analyze students' ideas about physical phenomena and to recognize the inferential structure they use. Contains 28 references. (DDR)

Reports on the implementation of an extracurricular course for fifth-grade students that focuses on the structure and function of animals. Students participate in direct observation of animals, watching videotapes, group discussion, and building kits and games. (DDR)

Discusses various problems with Activitymania (prepackaged activities for science instruction) in the context of teaching scientific inquiry. Suggests that teachers clearly define conceptual goals and their relationships to students' lives and interests before selecting classroom activities. (PVD)

Reports on a project in which children develop instructional technology skills while learning a great deal of science. Explains how children construct a multimedia presentation on the topic of invertebrates. (DDR)