Today, the use of web-based videos in science classrooms is becoming more and more commonplace. However, these videos are often fast-paced and information rich--science concepts can be fragmented and embedded within larger cultural issues. This article addresses the cognitive difficulties posed by many web-based science videos. Drawing on concepts…

Around 1590, Zacharias Jansenn of Holland invented the microscope. Jansenn, an eyeglass maker by trade, experimented with lenses and discovered that things appeared closer with combinations of lenses. Over the past 400 years, several refinements to microscopes have occurred, making it possible to magnify objects between 200 and 1,500 times their…

The National Science Teachers Association (NSTA) supports and encourages the use of e-Learning experiences for preK-16 science students, as well as for science educators engaging in professional development in the traditional, informal, or distance learning environment. NSTA defines e-Learning as the effective learning process created by combining…

Commercial computer games contain "physics engine" components, responsible for providing realistic interactions among game objects. The question naturally arises of whether these engines can be used to develop educational materials for high school and university physics education. To answer this question, the author's group recently conducted a…

A research study was carried out to measure the effect of a computer animation as part of the assessment of conceptual understanding of second-semester general chemistry students. The major impact of the animation was observed to be in minimizing the difficulty students have in visualizing the particle motions for each distractor.

This paper investigates the use of online technologies to extend the learning of a group of junior secondary school students after attending a Sun, Science, and Society camp. The students were of mixed ages and came from metropolitan and rural schools. Their teachers described them as students of high ability or students interested in science who…

Computer bulletin board systems, commercial services, technical services, and academic/professional networks are described. Directions on how to get started using these types of networks and examples of ways they can be used are provided. (KR)

Discusses the notion of variables in computer algebra, mathematics, and science. Central are the questions of how variables are actually used in mathematics and science, how computer algebra supports the various uses of variables, what conceptual differences exist, and what consequences follow from this for teaching, learning, and doing…

Describes computed tomography (CT), a medical imaging technique that produces images of transaxial planes through the human body. A CT image is reconstructed mathematically from a large number of one-dimensional projections of a plane. The technique is used in radiological examinations and radiotherapy treatment planning. (Author/MM)

As a veteran teacher at a NCSSSMST (National Consortium for Specialized Secondary Schools of Mathematics, Science and Technology) high school, the author takes pride in allowing her students to stretch their minds. But as a teacher of gifted juniors and seniors, it has always been a challenge to keep her students up to date with key events in…

The development of inquiry and project-based materials is challenging in many ways, not the least of which is the design of supports for teachers implementing such materials. We report on the design of educative and just-in-time teacher supports for an online project-based unit in ocean science. The teacher supports were visible as tabs on the…

This article concerns the development of conceptual understanding of a physical phenomenon through the use of computational representations. It examines how students make sense of and interpret computational representations, and how their understanding of the represented physical phenomenon develops in this process. Eight studies were conducted,…

In this paper, we present a review of research into the problems of implementing authentic scientific inquiry curricula in schools and the emerging use of educational Multi-User Virtual Environments (MUVEs) to support interactive scientific inquiry practices. Our analysis of existing literature in this growing area of study reveals three recurrent…

Describes studies designed to examine the instrumentation used to assess both graphing abilities and the impact of microcomputer-based laboratories (MBL) on students' graphing abilities. Results suggest that numerous disparities between the results of multiple-choice and free response instruments. The analysis also revealed that the impact of MBL…

Describes a project in which a group of primary school students tried out a range of IT activities using Xemplar Pocket Book computers. Demonstrates that they improved the quality and range of pupils' learning and supported literacy in science. Explains that pocket computers do not replace but complement the classroom PC. (Author/ASK)