This study explores general-chemistry instructors' awareness of and ability to identify and address common student learning obstacles in chemical equilibrium. Reported instructor strategies directed at remediating student alternate conceptions were investigated and compared with successful, literature-based conceptual change methods. Fifty-two…

The prevalence and severity of child and adolescent overweight (OW) in the United States have been documented, but little is known regarding the prevalence of OW and "Extent of Overweight" (EOW) in individual states or specific regions within states. The aim of this study was to determine the prevalence of OW and EOW in school-aged…

The problem addressed in the study was whether 10-year-old and 11-year-old children, collaborating within a computer-supported classroom, learned an explanation-driven process of inquiry that had characteristics of the progressive nature of scientific inquiry. The technical infrastructure for the study was provided by the Computer-Supported…

While learning and teaching difficulties in genetics have been abundantly explored and described, there has been less focus on the development and field-testing of strategies to address them. To inform the design of such a strategy a review study, focus group interviews with teachers, a case study of a traditional series of genetics lessons,…

In April 2003 the first European Science Olympiad took place in Dublin City University in Ireland. In this competition second level students were asked to carry out a number of tasks involving biology, physics and chemistry. Students had qualified initially in competitions in one of these subjects and were organised into integrated teams which…

The paper brings the results of a project that passed on to students the opportunity for re-presenting their acquired knowledge via the construction of multi-modal "learning resources". These "learning resources" substituted for lectures and books and became the official learning sources in the classroom. The rational for the…

Little research has investigated sociocultural factors in the development of body dissatisfaction in preadolescent girls. This study examined the combined influence of media and peer factors. The participants were 100 girls aged nine to 12 years. The girls completed questionnaire measures of media exposure (television and magazines), peer…

The goal of this study is to analyze the images of science and scientists in science biographies written for children. We examined 12 biographies of historic and contemporary scientists written for primary/middle school children in relation to three dimensions: characteristics of scientists, nature and process of scientific knowledge, and social…

The following paper is intended as an exercise in "friendly criticism" of one of Harvey Siegel's and Mike Smith's ("Knowing, Believing and Understanding", this volume). I'm in substantial sympathy with the general thrust of their paper and my remarks merely provide some criticism of their discussion's conceptual coherence and clarity and a…

As students apply their knowledge of scientific concepts and of science as a method of inquiry, learning becomes relevant. This laboratory exercise is designed to foster students' understanding of the genetics of quantitative traits and of the nature of science as a method of inquiry by engaging them in a real-world business scenario. During the…

In view of students' alternative conceptions about basic concepts in astronomy, we conducted a series of constructivist activities with future elementary and junior high school teachers aimed at changing their conceptions about the cause of seasonal changes, and of several characteristics of the Sun-Earth-Moon relative movements like Moon phases,…

For most middle school-level students, summarizing main ideas can prove to be difficult, especially for those with low vocabulary and language acquisition skills. Working specifically with students who are English Language Learners (ELLs) and in a special education program, we discovered that teaching summarization as a reading strategy increased…

The body mass index (BMI), or the ratio of weight in kilograms to the square of height in meters, is widely used to determine the presence or absence of overweight and obesity in adults. Although many consider BMI an acceptable clinical surrogate of body fatness, it does not differentiate between fat and fat-free tissues. Thus, children and…

Students are most motivated and learn best when they are immersed in an environment that causes them to realize why they should learn. Perhaps nowhere is this truer than when teaching the biological sciences to engineers. Transitioning from a traditionally mathematics-based to a traditionally knowledge-based pedagogical style can challenge student…

Recent advances in genomics and structural biology have resulted in an unprecedented increase in biological data available from Internet-accessible databases. In order to help students effectively use this vast repository of information, undergraduate biology students at Drake University were introduced to bioinformatics software and databases in…