The transfer of matter and energy from one organism to another and between organisms and their physical setting is a fundamental concept in life science. Not surprisingly, this concept is common to the "Benchmarks for Science Literacy" (American Association for the Advancement of Science, [1993]), the "National Science Education Standards"…

Group learning has been embraced by many middle school teachers as a critical component of teaching and learning about science. Teachers have developed techniques to facilitate group learning, but sometimes wish for a better method to keep students on task, allow the teacher to track the progress of individual groups, and promote higher-level…

In November 2000, wild Atlantic salmon were placed under the protection of the Endangered Species Act of 1973. Washington Academy (WA) in Maine has played an integral role in the education and restoration of this species. Efforts to restore the salmon's dwindling population, enhance critical habitat areas, and educate and inform the public require…

The "Central Dogma" of genetics states that one gene, located in a DNA molecule, is ultimately translated into one protein. As important as this idea is, many teachers shy away from teaching the actual mechanism of gene translation, and many students find the concepts abstract and inaccessible. This article describes a unit, called Genetics…

Research indicates that students with exceptionalities such as visual impairments are more academically successful when they are included in the regular classroom setting and have opportunities to engage in active learning. Therefore, science educators must address their needs by motivating visually impaired students in science and making…

In this article, the author discusses "The Biology of Food" course. This course--a large lecture course with no laboratory section--is a mixture of kitchen chemistry, post-eating food metabolism, origins of different foods (from crop breeding to evolution), and ecological and environmental impacts of farming and harvesting practices. Nearly every…

Inquiry can be implemented in various ways, ranging from simple classroom discussions to longterm research projects. In this article, the authors developed a project in which high school students were introduced to the nature and process of scientific discovery through a two-week guided inquiry unit on "limnology"--the study of fresh water, which…

Although most high school students want their biology classes to include evolution, most high school biology classes in Minnesota do not emphasize evolution. This lack of an emphasis on evolution defies state educational standards and is associated with most students (high school and college) having serious misconceptions about evolution. The…

This article presents a comparison between the professional and curricular conceptions of two samples of secondary education science teachers in Spain, who differed in their years of teaching experience and in whether or not they had participated in a long-duration scientific-pedagogical refresher course. Using the data from their responses to a…

This article explores trainee teachers' conceptions and ideas about endangered bird species and their protection. The study involved 191 students majoring in kindergarten education, primary school natural science or secondary school biology education at the University of Ljubljana Faculty of Education, Slovenia. Data analyses showed that the…

In this study, the effect of problem-based learning on students' academic achievement and performance skills in a unit on the human excretory system was investigated. Sixty-one 10th grade students, from two full classes instructed by the same biology teacher, were involved in the study. Classes were randomly assigned as either the experimental or…

This study reports on research examining what students think about aspects of solution chemistry and seeks to establish what alternative conceptions they hold in this area. To achieve this aim the researchers developed a test comprising of open-ended questions that evaluated students understanding of solution chemistry. The test was administered…

In chemical education, many secondary school students experience difficulties in understanding three mutual related meanings of topics, that is, the macroscopic meaning, the microscopic meaning, and the symbolic meaning. As a consequence, student teachers should be prepared carefully to learn how to teach this difficult issue. This article…

Student reflective ideas were examined with respect to Group Investigation (GI), which was employed in 11th grade Korean earth science classrooms. A modified GI method was implemented during the course of an action research effort consisting of two yearlong projects. Students' writings, which had been produced twice a year, were analyzed to reveal…

This paper reports research about upper secondary school pupils' views about science investigations in school. Although researchers, teachers and examiners have expressed opinions about investigative work in science, there have been relatively few studies of pupils' experiences. The present study identified pupils' concerns about the limited time…