Students in a grade 2-3, two-way bilingual classroom increased their understanding of scientific practice through a model-based methodology for science instruction. Students collaborated with peers and teachers to create computer models, construct physical models, and talk about their models in the classroom. Aspects of second language usage in…

Introduces internet resources that are available for instructional use in biology classrooms. Provides information on video-based technologies to create and capture video sequences, interactive web sites that allow interaction with biology simulations, online texts, and interactive videos that display animated video sequences. (YDS)

Studies the effectiveness of biology teachers in the southwest Missouri area. Introduces the Biology Laboratory Internship Program which provides preparation and teaching experience to preservice teachers. (YDS)

Addresses the difficulty that teaching assistants and new faculty members may experience in finding a convenient outline of the task of preparing an experiment for undergraduates. Explains all phases of developing a laboratory exercise and includes a list of things to consider for each phase. (DDR)

Shows how the tobacco mosaic virus can be used in conjunction with the common bean plant Phaseolus vulgaris to provide a discernable, experimental model that students can use to study induced resistance. (Contains 17 references.) (DDR)

Tests a multifaceted curriculum for use in introductory earth science classes from the secondary school to the introductory undergraduate level. Simulates the greenhouse effect with two fish tanks, heat lamps, and thermometers. Uses a hands-on science approach to develop a deeper understanding of the climate system among students. (Contains 28…

Describes how latex-based creatures are made and used to explore various topics in inquiry-based middle school science. Provides a variety of sample data and includes sections on safety concerns and chemistry notes for the teacher. (DDR)

Recommends the use of heart models in teaching about the circulatory system. Argues that simulation activities can deepen students' understanding of heart structure, dispel misconceptions of the cardiac cycle, and foster awareness of the importance of maintaining a healthy heart. (DDR)

Provides an overview of a student research program that stresses the role of science in everyday life, knowledge and understanding, and the methods of scientific inquiry. Provides concrete examples of how these purposes can be achieved in a holistic way. (DDR)

Explains an online introductory biology course that applies the inquiry approach to hands-on laboratories. Evaluates learning objectives such as the knowledge of biology, reasoning, attitudes, and graphing skills. (YDS)

Presents the Isaac Newton Olympics in which students complete a hands-on activity at seven stations and evaluate what they have learned in the activity and how it is related to real life. Includes both student and teacher instructions for three of the activities. (YDS)

Children make discoveries spontaneously while participating in hands-on science learning experiences. The students in this study were attending an after-school science program that was organized around authentic literacy activities and hands-on science learning experiences related to the theme of wetlands. Literacy connections formed natural…

Students enjoy carrying out an exciting and challenging research project that combines science with computers and mathematics to investigate how polyacrylate animals change in size over time when placed in water and aqueous salt solutions. The hands-on activity motivates students and provides them with the necessary skills and information to have…

Linear measurement is more than just learning how to use a ruler. In the early grades, measurement activities develop students' understanding of the properties of objects as well as what it means to measure objects. Hands-on activities can enable students to explore such measurable properties as height and length, and direct comparisons of various…

Two studies examined the roles of altruistic values, egalitarianism, self-efficacy, and perceptions of utility in shaping children's interest in scientific fields. In Study 1, middle school girls attending an intervention program ("n"=617) heard presentations by female scientists (expected to increase egalitarianism), engaged in hands-on science…