Explores changes in students' (n=250) thinking about basic chemical ideas during a context-based curricular approach. Suggests that 16- to 18-year-old students enter chemistry courses with a wide range of misunderstandings about chemical reactions, but understanding improves steadily as the course progresses. Concludes that even misunderstandings…

Presents results of a pretest/posttest measure for assessing scientific literacy that was given to a general biology class for nonmajors. Test questions are listed and include items covering popular biology-related misconceptions. (WRM)

Investigates the effects of both computer animations of microscopic chemical processes occurring in a galvanic cell and conceptual-change instruction based on chemical demonstrations on students' conceptions of current flow in electrolyte solutions. Finds that conceptual change instruction was effective at dispelling student misconceptions but…

Analyzes a teaching episode to determine how a conflict is perceived and overcome by students as a result of verbal interaction between the teacher and the students. Discusses the particulate nature of matter with students aged 15-16 after observing a glass of water containing a rock and an ice cube. (Contains 25 references.) (Author/YDS)

The thinking process does not always start with problem situations that produce cognitive conflict, and the confrontation of students' misconceptions is not always successful as a teaching approach. Contends that curiosity and mystery appear to excite human thinking and could therefore be considered to be the starting point in science teaching and…

Presents the results of a cross-age study of 7- to 15-year-old children on their thinking about vertebrate and invertebrate animals. Suggests experiences that could be included in the school science curriculum and argues for more classroom work relating structure with function in order to address students' conceptual difficulties. (Contains 18…

Reviews and assesses the effectiveness of the attempts undertaken to improve prospective and practicing science teachers' conceptions of the nature of science (NOS). Categorizes reviews as implicit or explicit. Indicates that the explicit approach was more effective in enhancing teachers' views. Assumes that developing an understanding of NOS is…

Discusses the five major concerns that govern a school nurse's thinking in managing head louse infestations, including dispelling misconceptions about head lice; ensuring that infestations are not missed; ensuring that parents understand instructions for effective treatment; educating the community about the correct use of pediculicides; and…

Discusses how biologists use evolutionary theory and provides examples of how evolutionary biologists test hypotheses on specific modes of selection and evolution. Presents an example of the successful predictive power of one evolutionary hypothesis. Contains 38 references. (DDR)

Today's teachers are unprepared to meet increasingly complex assessment challenges. The poor state of assessment literacy arises from naive assumptions about standardized testing and student motivation, fear of being held accountable for student achievement, parents' nostalgic views of testing, and confusion over achievement expectations for high…

Investigates the intuitive beliefs held by students (N=2326) about a number of well-known physical events. Finds that the context of the question has a clear effect on the frequency with which different options are selected in physically similar situations. (DDR)

Pre- and posttest results gathered from 155 seventh graders before and after a nine-week technology education program showed the following: their interest in technology was not significantly altered; their belief in the difficulty of working with technology was reduced; responses of males and females were significantly different; and students have…

Presents the perspective of a science teacher educator on evaluation systems for courses and faculty. Critiques the traditional university course evaluation instrument and offers suggestions for augmentation. (DDR)

Describes some basic difficulties in early algebra and their causes and presents some strategies for overcoming them. Lists five areas as being essential foundations for learning algebra: (1) seeing the operation, not just the answer; (2) understanding the equals sign; (3) understanding the properties of numbers; (4) being able to use all numbers;…

Debunks some goofy ideas--notions that schools control our economic destiny, money matters not in education, and American students' performance is uniformly dismal on international standardized tests. The United States offers more educational opportunities than other nations. Detractors and advocates of public education are given Rotten or Golden…