Describes an activity using a large balloon to help children understand that, even though the horizon appears to be flat, the Earth is, indeed, round. Uses a toy ship to reinforce evidence from the first part of the activity. Stresses the importance of confronting naive theories at an early age. (CW)

Describes a series of activities designed to help students understand the dynamics of flowing water. Includes investigations into determining water discharge, calculating variable velocities, utilizing flood formulas, graphing stream profiles, and learning about the water cycle. (TW)

Advocates the accuracy of the common belief that the possession of energy drives, gives potential for, or accounts for change. Argues that the term "free energy" or entropy represents the possibility of change. Recommends that educators reexamine their use of these terms to prevent common misconceptions about energy. (TW)

In 1944, noted conservationist Aldo Leopold wrote: "Acts of conservation without the requisite desires and skill are futile. To create these desires and skills, and the community motive, is the task of education." Almost sixty years later, in January 2003, the National Science Foundation released a report of its Advisory Committee for…

The Academic Senate for California Community Colleges has maintained long-standing support for the no-fee, open-access concept of California's community colleges. This paper documents the history of the introduction of fees and the seemingly inevitable subsequent increases--all of which have been vigorously opposed by the Academic Senate. It makes…

How can we fix America's floundering public schools? The conventional wisdom says that schools need a lot more money, that poor and immigrant children cannot do as well as most American kids, that high-stakes tests just produce teaching to the test, and that vouchers do little to help students while undermining our democracy. But what if the…

This study examines the changes in students' conceptual thinking and problem solving abilities. Conceptual thinking skills and problem solving abilities are important factors for medical school applicants as diagnosis and treatment procedures strongly depend on these skills. Underrepresented minorities in medicine is a concern in United States,…

This report describes a comparison of the effectiveness of two types of instruction on undergraduate students' learning of the concept of force. Findings indicate that students who participated in the Integrated Freshman Year Curriculum for Science, Engineering and Mathematics improved slightly more on the Force Concept Inventory than students who…

Traces change in conception of gravity in a boy from kindergarten until second grade, focusing on the process by which persons restructure ideas that differ from accepted scientific understandings, and acquire scientific ideas. Provides criteria for defining an alternative conception; suggests how conditions in the initial interview may have…

Discusses 10 Internet misconceptions: all information is available, no copyright laws apply, all information is free, complete research papers can be completed, all sites are true and equal, objectionable material is everywhere, information can be found faster, complex databases are easier to search, latest information is always available,…

Explores the influences of text structure on students' conceptual change. Case studies were conducted and results showed that individuals used refutational text to change their alternative conceptions and acquire new concepts. Findings indicate that refutational text does cause cognitive conflict. While refutational text is effective for groups,…

Provides examples and a discussion of the Inquiry Cooperation Model (ICM). The ICM is a way of describing a pattern of communicative cooperation between teacher and students. It tries to develop students' preconceptions into mathematical competence. Contains 15 references. (DDR)

Reviews evidence on gender inequities in science education and gender differences in "ways of knowing" and argues that making science instruction more effective can promote greater equity. Describes a conceptual change approach to science instruction that explicitly activates students' preexisting conceptions and misconceptions and helps students…

States unequivocally that the classification of humans into races has no validity within the discipline of biology. Maintains that such classification is strictly cultural and any attempt to discern differences in cognitive or other abilities among populations must confront the limits of scientific knowledge. (MJP)

Examines some of the misconceptions about the nature of critical thinking. Focuses on the characterization of critical thinking in terms of processes or skills and the separation of critical thinking and knowledge. Offers a different conception of critical thinking. (Contains 46 references.) (DDR)