A Particulate Nature of Matter Evaluation Tests was used to explore the effect of computer animations depicting the particulate nature of matter on (n=400) college students' mental models and comprehension of chemical phenomena. Treatment groups received significantly higher conceptual understanding scores than did the control group. (30…

This report details results of providing gifted and talented middle school and early high school students with computer-based advanced placement courses in mathematics and physics. Three such groups in the Education Program for Gifted Youth at Stanford University (California) were followed. Results support acceleration for such students and the…

Presents Texas Instruments' new Calculator-Based Laboratory (CBL), a hand-held device that connects to a graphing calculator, as a tool to make sophisticated measurements outside the classroom laboratory. Describes activities that use the CBL to make measurements in motion studies. (JRH)

Describes a teaching experiment that uses the Learning Cycle to achieve the reorientation of physics' students conceptual frameworks away from commonsense perspectives toward scientifically rigorous outlooks. Uses Archimedes' principle as the content topic while using the Learning Cycle to remove students' nonscientific preconceptions. (JRH)

Describes the Science Education Program and Leadership (SEPAL) project, a model science program for elementary teachers and students, designed to improve the teaching of science at the K-8 level. Focuses on experiential learning for teachers and promotes an inquiry-oriented approach to science teaching. (JRH)

Describes the effects of ability-paired student interactions on achievement as fifth graders (n=83) worked on laboratory activities relating to balance. Results revealed that low ability student achievement is greater, they speak more words, exhibit less distracting behavior, and move blocks on the lever less when they are paired with a partner of…

Maintains that, for a cognitive construct to be accepted as explanatory, it must specify target behaviors, posit antecedent variables, and indicate how the antecedent variables can be measured independently of behavioral changes. Discusses epistemological tools that can be used in similar fashion. (CFR)

Describes five formats of alternative assessment (journal writing, open-ended problems, portfolios, interviews, and performance assessments) for mathematics and science, how these methods can be implemented, and benefits of each type. Samples are included. (13 references) (Author/MKR)

Uses a moderately priced digital multimeter that has output and software compatible with personal computers to make a portable, computer-based data-acquisition system. The system can measure voltage, current, frequency, capacitance, transistor hFE, and temperature. Describes field measures of velocity, acceleration, and temperature as function of…

Provides a method of demonstrating triangles on a curved surface to aid the student in seeing that the sum of the angles are either more or less than 180 degrees depending upon which side of the sphere the triangle is placed. (MVL)

This study focused on students' development of inquiry skills in a computerized learning environment. Seven Year-11 classes (n=120) interacted with a computerized database, "Birds of Antarctica," and curriculum materials while the teacher used an inquiry approach to learning. Students perceived their classes as more investigative and…

Describes the use of NASA Spacelink Computer Information Service for Educators to obtain instructional materials and ideas for classroom demonstrations. Uses the free-fall concept of zero gravity as an example. Provides NASA Spacelink contact information. (JRH)

Describes a set of hands-on corridor demonstrations that illustrate various aspects of interference and diffraction of light waves and sound waves. (11 references) (JRH)

Describes the use of the TI-82 graphics calculator as an intermediate step in introducing computers to the high-school physics lab. Discusses linking the calculator with other machines so that students can save data, enter programs on a computer and later download to the calculator, and transfer graphs to a computer for printing. (JRH)