The comprehension of interdependent complex systems, which is part of state and national standards, is an enormous challenge for learners. In traditional physiology teaching materials, which structure the human body into decoupled subsystems (e.g., respiratory and cardiovascular) isolated in separate chapters, there is a ubiquitous absence of…

Hypermedia technology offers new opportunities for developing earth science teaching materials. During the past 3 years, the U.S. Geological Survey has conducted a series of research and development projects to assess the effectiveness of hypermedia technology in providing innovative teaching products for middle school students. The goal of this…

Science process skills include basic skills like observing, inferring, measuring, communicating, classifying, and predicting, as well as integrated skills like controlling variables, defining operationally, formulating hypotheses, interpreting data, experimenting, and formulating models. Recognition of the value of science process skills has…

A science classroom was used to study the effects of a shared intranet environment on students' problem-solving ability and metacognitive reflection skills through shared contextualization. Subjects were first-time 9th- and 10th-grade biology students from three public high schools. An evaluative analysis of the CourseInfo software (Blackboard,…

This paper reports on a project involving the development and formative evaluation of an interactive World Wide Web-based learning tool. The interactive graphing tool (IGT) permits students to sketch a graph on screen using a mouse and responds to a wide range of common graph types. The IGT facilitates an iterative approach to understanding…