New science shows that exposure to toxins prenatally or early in life can have a devastating and lifelong effect on the developing architecture of the brain. Exposures to many chemicals have much more severe consequences for embryos, fetuses, and young children, whose brains are still developing, than for adults. Substances that can have a truly…

Over the last two decades there has been an increase in the use of qualitative research, particularly in the human sciences. Such a move has resulted in an increasing number of researchers across disciplines using various types of qualitative software specially designed for managing text and facilitating analysis of qualitative data. However, we…

This article questions why a somewhat singular focus on orphanhood in the context of AIDS persists despite important shifts to more inclusive terminology of "orphans and vulnerable children." Analysis of data from South Africa raises questions about the "spin" placed on "orphanhood" and its perceived consequences for…

Too often, conversations about Latinos in education are based on ignorance. Put simply, ignorance is "not knowing." As often as not, people in these conversations assume they know more than they actually do--based on individual experiences or cliches shared by others--rather than on data. Excelencia in Education addressed this by providing…

These proceedings contain the papers presented at the 1995 annual meeting of the Canadian Mathematics Education Study Group. Papers are organized into four sections: (1) plenary lectures; (2) working groups; (3) topic sessions; and (4) ad hoc sessions. Papers include: (1) "The Role of Epistemology in the Analysis of Teaching/Learning…

The use and analysis of student generated propositions linking two scientific concepts (photosynthesis and respiration) were examined before and after the study of photosynthesis. A proposition-generating task (PGT) was used as a diagnostic tool to indicate student misconceptions and partial understandings. Focus was on determining: how the nature…

The aim of this study was to incorporate a web-assisted program to normal traditional classroom instruction and study about students' misconceptions in force and motion concepts in physics. The Web-based physics program was incorporated with the traditional lecture. Specifically, 30% of class time was allocated for using this tutorial program, and…

Misinformation at the point of implementation for educational policy is a serious problem with legal as well as financial implications. As is apparent in public education when central authority for policy making increases due to shifts in power and control, and local decision making decreases, as in public education, local districts and individual…

The teacher's role in directing science activities is examined in this book. Suggestions are offered on what teachers might do with the activities and advice is given on how the activities could be used. Each of the eight chapters contains a brief summary at the beginning, a detailed review at its close, and a list of specific guidelines for…

Designed to address the major conceptual problems associated with light and vision, appearances of surfaces, and color, this module can be used with high school students or college nonscience majors including those in elementary education. It is one in a series developed by the project "Overcoming Critical Barriers to Learning in Nonmajors'…

This document is the last of three volumes of the proceedings of an international seminar which focused on student misconceptions in science and mathematics as well as teaching strategies intended to deal with those misconceptions. An introduction to the volume explains the format of the conference and the organization of the sessions. It stresses…

This paper evaluates the strengths and limitations of a computer tutor designed to help students understand physics concepts. The tutor uses a teaching strategy called "bridging analogies" that previous research has demonstrated to be successful in one-to-one tutoring. The strategy is designed to remedy misconceptions by appealing to existing…

It is often both possible and valuable for a teacher to be a researcher in his or her own classroom. This paper describes the nature of cognitive research and focuses on two areas of research that may be of special interest to classroom physics teachers. The first area refers to misconceptions that students bring with them to their physics…

Trying to change the predictive rule for the sinking and floating phenomena, students have a great difficulty in understanding density and they are insensitive to empirical counter-examples designed to challenge their own rule. The purpose of this study is to examine the process whereby students from sixth and seventh grades relinquish their…

Shows that the second law of thermodynamics is in the common experience of many people and if taught first, before the law of conservation, can result in fewer misconceptions among pupils. Stresses the use of common experiences in teaching. (CW)