Student control ideology and the science classroom environment in urban secondary schools of sudan

An examination was made concerning the relationships between Sudanese secondary science teachers' pupil control ideology and their students' perceptions/observations of the psychosocial environment of their science classrooms. One hundred secondary science teachers were classified as possessing humanistic (N = 20) or custodial (N = 20) control ideologies. A class (N = 40) of students was randomly selected for every teacher in both groups. The findings revealed that no significant relationships existed between the control ideologies of the teachers and their students' perceptions/observations of the classroom environment. Custodialism in control ideology was significantly related to the classroom environment psychosocial aspect of low “support.” Discussion and implications of the findings have been approached from both Sudanese and American perspectives.     

Towards a More Authentic Science Curriculum: The contribution of out‐of‐school learning

In many developed countries of the world, pupil attitudes to school science decline progressively across the age range of secondary schooling while fewer students are choosing to study science at higher levels and as a career. Responses to these developments have included proposals to reform the curriculum, pedagogy, and the nature of pupil discussion in science lessons. We support such changes but argue that far greater use needs to be made of out‐of‐school sites in the teaching of science. Such usage will result in a school science education that is more valid and more motivating. We present an “evolutionary model” of science teaching that looks at where learning and teaching take place, and draws together thinking about the history of science and developments in the nature of learning over the past 100 years or so. Our contention is that laboratory‐based school science teaching needs to be complemented by out‐of‐school science learning that draws on the actual world (e.g., through fieldtrips), the presented world (e.g., in science centres, botanic gardens, zoos and science museums), and the virtual worlds that are increasingly available through information technologies.     

Just do it? impact of a science apprenticeship program on high school students' understandings of the nature of science and scientific inquiry

The purpose of this study was to explicate the impact of an 8‐week science apprenticeship program on a group of high‐ability secondary students' understandings of the nature of science and scientific inquiry. Ten volunteers (Grades 10–11) completed a modified version of the Views of Nature of Science, Form B both before and after their apprenticeship to assess their conceptions of key aspects of the nature of science and scientific inquiry. Semistructured exit interviews provided an opportunity for students to describe the nature of their apprenticeship experiences and elaborate on their written questionnaire responses. Semistructured exit interviews were also conducted with the scientists who served as mentors for each of the science apprentices. For the most part, students held conceptions about the nature of science and scientific inquiry that were inconsistent with those described in current reforms. Participating science mentors held strong convictions that their apprentices had learned much about the scientific enterprise in the course of doing the science in their apprenticeship. Although most students did appear to gain knowledge about the processes of scientific inquiry, their conceptions about key aspects of the nature of science remained virtually unchanged. Epistemic demand and reflection appeared to be crucial components in the single case where a participant experienced substantial gains in her understandings of the nature of science and inquiry. © 2003 Wiley Periodicals, Inc. J Res Sci Teach 40: 487–509, 2003     

Gendered Career Choice: is sex‐stereotyping the cause or the consequence?

The interaction between school pupils’ schematic representations of ‘social’ and ‘technical’ roles and the impact that the ‘sex‐typing’ of careers has on occupational choice were investigated using stimulus vignettes. Questionnaire data pertaining to occupational choice were collected from first‐year university students enrolled on courses designated as either ‘social’ or ‘technical’. The prototypical in‐group positions for the two occupational areas were calculated and used as the basis of vignettes depicting either a male or female school pupil experiencing difficulty in deciding whether to pursue a technical or socially oriented career. The vignettes were presented to 107 school pupils aged 16‐18 who were asked which career area they thought the target pupil was likely to choose. Results indicate that subjects were able to identify correctly the prototypical characteristics utilised in the vignettes and that these were of greater importance in their expectation of course choice than the ‘sex’ of the target pupil.     

Successful in Science Education and Still Popular: A pattern that is possible in China rather than in Germany or Russia

Across several countries, science is often regarded as unpopular and a male-dominated domain. Furthermore, the number of students who are interested in science education or intend to work in the field of science is relatively low. This might be due to expectations adolescents hold towards science and successful scientists. The current cross-national study investigates the expectations of students in relation to highly achieving peers in science education in the three countries China, Germany and Russia (N?=?420). Students were asked to indicate their expectations about two fictitious new classmates with respect to three categories: intelligence, social competence and eagerness. Besides national differences, differences concerning the gender of the participating students, the gender of the target students (fictitious highly achieving students in science education) and interaction effects were investigated. Whereas the effects of gender and target gender are inconsistent and negligible, there are significant national differences. Notably, Chinese students hold the most positive expectations about successful peers in science education. The results are discussed with regard to possible explanations and educational consequences.     

Early Childhood Educators' Perceptions of Nature,Science, and Environmental Education

This study examined early childhood educators' perceptions about nature, science, and environmental education. Preservice early childhood teachers (n = 195) and early childhood professionals currently practicing in the field (n = 162) rated the importance of providing specific nature/science experiences for young children, the importance of specific nature/science learning outcomes, and their confidence implementing specific activities. Research Findings: Consistent with our hypotheses, both professionals and students rated the curricular domain of nature/science as the least important for young children in terms of experiences and learning outcomes in comparison to other curricular domains. Similarly, both professionals and students reported that they were least confident implementing nature/science activities compared to activities in other curricular domains. Qualitative analysis of open-ended questions yielded themes related to definitions of nature, specific activities in and about nature that can promote children's learning and development, and what educators need to know and be able to do in order to be effective “nature educators.” Practice or Policy: Preservice and in-service teacher professional development would benefit from (a) the inclusion of content on nature, science, and environmental education, including the interrelatedness of human and natural systems; (b) a focus on place-based education and/or emergent curriculum; and (c) the provision of experiences in nature that help teachers to develop confidence implementing activities in nature. [Supplementary material is available for this article. Go to the publisher's online edition of Early Education & Development for the following free supplemental resource: Appendix A: Teacher Survey Questions.]     

Developing an instrument for assessing students’ concepts of the nature of technology

Background: In Bangladesh, a common science curriculum caters for all students at the junior secondary level. Since this curriculum is for all students, its aims are both to build a strong foundation in science while still providing students with the opportunities to use science in everyday life – an aim consistent with the notion of scientific literacy.

Purpose: This paper reports Bangladeshi science teachers’ perspectives and practices in regard to the promotion of scientific literacy.

Sample: Six science teachers representing a range of geographical locations, school types with different class sizes, lengths of teaching experience and educational qualifications.

Design and method: This study employed a case study approach. The six teachers and their associated science classes (including students) were considered as six cases. Data were gathered through observing the teachers’ science lessons, interviewing them twice – once before and once after the lesson observation, and interviewing their students in focus groups.

Results: This study reveals that participating teachers held a range of perspectives on scientific literacy, including some naïve perspectives. In addition, their perspectives were often not seen to be realised in the classroom as for teachers the emphasis of learning science was more traditional in nature. Many of their teaching practices promoted a culture of academic science that resulted in students’ difficulty in finding connections between the science they study in school and their everyday lives. This research also identified the tension which teachers encountered between their religious values and science values while they were teaching science in a culture with a religious tradition.

Conclusions: The professional development practice for science teachers in Bangladesh with its emphasis on developing science content knowledge may limit the scope for promoting the concepts of scientific literacy. Opportunities for developing pedagogic knowledge is also limited and consequently impacts on teachers’ ability to develop the concepts of scientific literacy and learn how to teach for its promotion.     

The Impact of a Science Education Game on Students’ Learning and Perception of Inhalants as Body Pollutants

This study investigated the knowledge gains and attitude shifts attributable to a unique online science education game, Uncommon Scents. The game was developed to teach middle school students about the biological consequences of exposure to toxic chemicals in an environmental science context, as well as the risks associated with abusing these chemicals as inhalants. Middle school students (n = 444) grades six through eight participated in the study consisting of a pre-test, three game-play sessions, and a delayed post-test. After playing the game, students demonstrated significant gains in science content knowledge, with game usability ratings emerging as the strongest predictor of post-test content knowledge scores. The intervention also resulted in a shift to more negative attitudes toward inhalants, with the most negative shift occurring among eighth grade students and post-test knowledge gains as the strongest predictor of attitude change across all grade levels. These findings suggest that the environmental science approach used in Uncommon Scents is an efficacious strategy for delivering both basic science content and influencing perceived harm relating to the inhalation of toxic chemicals from common household products.     

Metaphors as global markers for teachers' beliefs about the nature of science

In this paper, we report an analysis of metaphors used by three science teachers in their classroom discourse and consider the implications of this research for the image of science that students are likely to construct. Teacher beliefs about the nature of science are implicit and entrenched and may be contrary to both contemporary philosophies of science and constructivist theory. We argue that the presence of metaphors such ateaching as a journey, knowledge as object andteacher as pathfinder in teachers' classroom discourse signify the implicit existence of a powerful objectivist epistemology that governs teachers' pedagogies. If students are to construct contemporary views of the nature of science and if constuctivist pedagogy is to develop in the science classroom then science teachers need to reflect on their use of these role-determining objectivist metaphors.     

Adolescents’ psychological well-being and self-esteem in the context of relationships at school

Background:?The school environment has shown itself to be an important factor in explaining adolescent behaviour. The relationships and experiences that pupils have at school have been found to influence their development, psychological well-being, self-esteem and social adjustment.

Purpose:?The aim of the study is to explore whether there is a relationship between pupil–peer and pupil–teacher relationships and psychological well-being and self-esteem, and whether this relationship varies according to pupils’ experience of bullying or being bullied.

Sample: Data consisted of a sample of 3694 students (mean age?±?SD 14.3?±?0.62 years; 51% girls) from elementary schools in Slovakia.

Design and method:?Questionnaires were administered to the students. In terms of data analysis, linear regression was firstly used in the whole sample to explore pupil–peer and pupil–teacher relationships and psychological well-being (the depression/anxiety and social dysfunction subscales of GHQ-12) and self-esteem (positive and negative self-esteem subscales of RSE). Next, the whole sample was divided into four groups in terms of involvement in bullying (normative contrasts, passive victims, aggressive non-victims and aggressive victims). Linear regression was used to explore the associations between pupil–peer and pupil–teacher relationships with the two factors of psychological well-being and two factors of self-esteem in these four groups.

Results:?As findings showed, better pupil–peer relationships and also pupil–teacher relationships were significantly related statistically to less depression/anxiety and social dysfunction, as well as to more positive and less negative self-esteem. All bullying categories were significantly related to pupil–peer relationships and the four dependent variables. However, in the categories of aggressive victims and aggressive non-victims, the pupil–teacher relationship was not significantly related to their psychological well-being and self-esteem. Also, in all subgroups, better pupil–peer relationships were significantly related to less depression/anxiety and social dysfunction, as well as with more positive and less negative self-esteem.

Conclusion:?Given the differences found in the connections between pupil–teacher relationships and well-being and self-esteem, between those who bullied and those who were bullied, it would seem that the school environment can play an important role in implementing anti-bullying prevention strategies.     

HOW CAN SCIENCE HELP US CARE FOR NATURE? HERMENEUTICS,FRAGILITY, AND RESPONSIBILITY FOR THE EARTH

In this review essay, Clarence Joldersma argues for a novel role for science in developing an affirmative answer to his title question, “How can science help us care for nature?” He does so in dialogue with Clare Palmer's edited volume, Teaching Environmental Ethics, Dirk Postma's Why Care for Nature? and Michael Bonnett's Retrieving Nature. Joldersma suggests that although each book can help address the issue of how to teach students to care for nature, he parts company with their stance that we must go beyond science to develop a metaphysics of nature adequate to the task. Relying on the same Heideggerian framework as Postma and Bonnett, Joldersma comes to a different assessment of the role of science. He does so by arguing for a hermeneutic understanding of science as social practice and by claiming that science so construed can disclose the planet as earth (in the later Heidegger's sense), for which we owe thanks. This disclosure reveals earth as that which is fragile and for which we are responsible.     

Changing middle school students' conceptions of matter and molecules

The purpose of this study was two-fold: (1) to understand the conceptual frameworks that sixth-grade students use to explain the nature of matter and molecules, and (2) to assess the effectiveness of two alternative curriculum units in promoting students' scientific understanding. The study involved 15 sixth-grade science classes taught by 12 teachers in each of two successive years. Data were collected through paper-and-pencil tests and clinical interviews. The results revealed that students' entering conceptions differed from scientific conceptions in various ways. These differences included molecular conceptions concerning the nature, arrangement, and motion of molecules as well as macroscopic conceptions concerning the nature of matter and its physical changes. The results also showed that the students taught by the revised unit in Year 2 performed significantly better than the students taught by the original commercial curriculum unit in Year 1 for 9 of the 10 conceptual categories. Implications for science teaching and curriculum development are discussed.     

The Learning Benefits of Being Willing and Able to Engage in Scientific Argumentation

Engaging in science as an argumentative practice can promote students’ critical thinking, reflection, and evaluation of evidence. However, many do not approach science in this way. Furthermore, the presumed confrontational nature of argumentation may run against cultural norms particularly during the sensitive time of early adolescence. This paper explores whether middle-school students’ ability to engage in critical components of argumentation in science impacts science classroom learning. It also examines whether students’ willingness to do so attenuates or moderates that benefit. In other words, does one need to be both willing and able to engage critically with the discursive nature of science to receive benefits to learning? This study of middle-school students participating in four months of inquiry science shows a positive impact of argumentative sensemaking ability on learning, as well as instances of a moderating effect of one's willingness to engage in argumentative discourse. Possible mechanisms and the potential impacts to educational practices are discussed.     

Attitudes toward science of gifted and nongifted fifth graders

The purpose of this investigation has been to explore whether differences existed between gifted and nongifted fifth graders and between genders and related subgroups with respect to attitudes toward science. Both groups (N = 25) were matched on the demographic characteristics of school-site, race, sex, and socio-economic background. Gifted students were found to have more positive attitudes toward science than nongifted students; however, no significant differences were found. In all cases, boys (all boys, gifted boys, and nongifted boys) exhibited more positive attitudes toward science; again, no significant differences were uncovered between the boys and their counterpart group or subgroups. The item which consistently reflected the most positive rating (gifted students, all boys and gifted boys, and all girls and nongifted girls) was “usefulness of things done in science class.” Items where discrepancies surfaced included “usefulness of science when playing at home” where nongifted students and gifted girls were significantly more positive than their counterparts, and “spending more time doing science experiments” where all boys and gifted boys were significantly more positive than their counterparts.     

What Third-Grade Students of Differing Ability Levels Learn about Nature of Science after a Year of Instruction

This study explored third-grade elementary students' conceptions of nature of science (NOS) over the course of an entire school year as they participated in explicit-reflective science instruction. The Views of NOS-D (VNOS-D) was administered pre instruction, during mid-school year, and at the end of the school year to track growth in understanding over time. The Young Children's Views of Science was used to describe how students conversed about NOS among themselves. All science lessons were videotaped, student work collected, and a researcher log was maintained. Data were analyzed by a team of researchers who sorted the students into low-, medium-, and high-achieving levels of NOS understandings based on VNOS-D scores and classwork. Three representative students were selected as case studies to provide an in-depth picture of how instruction worked differentially and how understandings changed for the three levels of students. Three different learning trajectories were developed from the data describing the differences among understandings for the low-, medium-, and high-achieving students. The low-achieving student could discuss NOS ideas, the medium-achieving student discussed and wrote about NOS ideas, the high-achieving student discussed, wrote, and raised questions about NOS ideas.     

Influencing student understanding of the nature of science: Data from a case of curriculum development

The purpose of this study was to investigate the effects of the first-year field test BSCS middle school science program on student understanding of the creative, developmental, testable, and unified nature of science. The experimental group, which was exposed to the BSCS program, and the control group, which was taught using a more traditional middle school science curriculum, were administered a pretest and posttest using the Modified Nature of Scientific Knowledge Scale (MNSKS). Analyses of the results showed that the understanding of students who experienced the BSCS science program decreased significantly in regard to the developmental and testable nature of science. The understanding of students who experienced the control-group science program decreased significantly in regard to the creative nature of science. Analyses of covariance indicated that students in the control group possessed a significantly better understanding of the testable nature of science than did students who used the BSCS science program. Implications of these results are related to the constructivist view of learning, the development of curricula designed to facilitate scientific literacy, and future research endeavors.