Presents a simple mathematical model in which resultant speed is the sum or difference between wind speed and runner speed and a more complex model that assumes that only a proportion of the wind's speed affects one's running speed to describe the time difference between running with and without wind. (MDH)

Scientific and everyday knowledge domains are compared so as to reveal the distinctive differences between their goals and the cognitive processes used to attain them. The main goals, working goals, learning difficulties, knowledge structure, concept specification, knowledge organization, role of school science, program-solving instruction, formal…

Presents four stoichiometric problems and their solutions that use spot metal prices quoted from the newspaper to integrate economics and chemistry. (MDH)

Presents a class activity in which students use trigonometry to calculate the height attained by a water rocket. Provides a lesson plan that includes a list of materials needed, procedures to carry out the experiment, suggestions to extend the activity, and a reproducible worksheet for the students to register their calculations. (MDH)

Results of a HyperCard method for assessing the performance of expert and novice high school chemistry students solving stoichiometric chemistry problems (balancing chemical equations) is reported. MANOVA results indicate significant difference between expert and novice students solving the five stoichiometric chemistry problems using…

Computer-assisted genetics instructor (CAGI) is a database program to help students and teachers identify conceptual weaknesses, provide interactive drill to master problem solving, and reduce teacher tutorial time. Results of a comparison of users and nonusers indicates that CAGI users averaged between 6 and 10 points higher on hour exams than…

Presents the following guidelines to consider before, during, and after hands-on inquiry: (1) plan and prepare; (2) create problem intrigue; (3) give students the responsibility of solving the problem; (4) offer feedback and guidance; (5) debrief; and (6) anticipate, prevent, monitor, and adapt. (PR)

Describes a Russian approach of using literature to make physics instruction more interesting and attractive to students. (PR)

Presents a problem-solving activity in which students determine the effects on the water level in a pool when rocks are removed from a boat floating in the pool and placed into the water. Students discuss the problem, design an experiment to test solutions, conduct the experiment, and draw conclusions. (MDH)

Describes a contest where sixth-grade students observe the results of a week of planning, folding, testing, and comparing their best paper frog designs and hopping techniques. This integrated unit helps children unleash their imaginations and develop problem-solving skills. (PR)

Explores the potential for and limitations to learning science when middle-school students interact with computer simulations designed by scientists and built by professional programmers. Findings suggest that computer simulations can be used effectively when teachers use learning needs to guide choice of pedagogical style and alternate…

Points out that college freshmen expect major changes in the academic environment as they move from secondary school. Recommends that faculty use this opportunity to show students how to think for themselves. (DDR)

Evaluates the effects of the scaffold explanation-based approach to collaborative discussion on students' understanding of photosynthesis. Forty-eight fourth- and fifth-grade students were divided into groups of high, average control (AC), and average intervention (AI). Students worked collaboratively and individually on two reasoning tasks.…

Presents a conceptual framework for teaching science to students with disabilities. The framework suggests integration of explicit instruction in critical concepts, with cognitively-based approaches that emphasize problem-solving skills on real-world tasks. Implications for policy, professional development, and creation of learning environments…

Discusses the importance of science education in early childhood education and describes different approaches in incorporating physics into the preschool curriculum. Provides examples of experiments and encourages parent participation in children's science activities. Concludes by looking at science as an equity issue and emphasizes that science…