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1.
Scientific literacy implies an adequate understanding of the nature of scientific knowledge. However, little is known about classroom factors that can influence students' conceptions of the nature of science. In the present study, classroom variables that were related to changes in students' conceptions of science were identified. Particular attention was directed toward students' overall conceptions of scientific knowledge and their views of its tentative nature. Twenty-five classroom variables were found to be significantly related to both overall and tentative conceptions, while 12 variables were found to be scale-specific. A comparison between teacher and student conceptions of science did not support the prevalent assumption that a teacher's conception of science is significantly related to changes in students' conceptions of science. “Successful” classes were defined as those exhibiting the greatest student conceptual changes toward the viewpoint held by the teacher, irrespective of the “adequacy” of the teacher's viewpoint. In general, these classes were typified by frequent inquiry-oriented questioning with little emphasis on rote memory. Implicit references to the nature of science were commonly observed. Furthermore, where greatest changes in student conceptions of science were observed, the teachers were pleasant, supportive, and frequently used anecdotes to promote instruction and establish rapport. Emphasis on the depth, breadth, and accuracy of content statistically differentiated between “successful” and “unsuccessful” classes with respect to students' overall conceptions. However, this emphasis on content presentation did not differentiate classes with respect to students' conceptions of the tentative nature of science.  相似文献   

2.
In this review essay we examine five categories of dialectical materialism proposed by Paulo Lima Junior, Fernanda Ostermann, and Flavia Rezende in their study of the extent to which the articles published in Cultural Studies of Science Education, that use a Vygotskian approach, are committed to Marxism/dialectical materialism. By closely examining these categories (“thesis, antithesis and synthesis,” “unity of analysis,” “History,” “revolution,” “materialism”) we expect to enrich the general discussion about the possible contributions of Marxism to science education. We perceive part of science education practice as orientating toward positivism, which reduces human beings—teachers, learners and researchers—to isolated individuals who construct knowledge by themselves. The very same approach aggravates the inner contradiction of the capitalist society demanding commitments from researchers to continually build innovative science education from human praxis. Nevertheless, it is necessary to situate ourselves beyond a formal commitment with dialectical materialism and hence reach the heart of this method. Besides understanding the researchers’ commitments, we question the extent to which the respective research helps to radically refresh the current view on science, science education practice, and research in science education.  相似文献   

3.
Since the introduction of nursing into tertiary institutions in Australia in 1975, there has been increasing interest in the teaching of physical science to nurses. Various courses in physical science for nurse students have been developed. They vary in length and content but there is agreement that concepts taught should be closely related to nursing applications. The choice of relevant concepts tends to be made by individual curriculum developers. This paper reports an examination of the use of physical science concepts and their relevance from the perspective of registered nurses practising in general ward areas. Inherent in this study is the premise that for registered nurses to have ideas of the physical science underlying their practice they must have constructed meaning first for these concepts. Specific chemical concepts related to solutions are discussed in these terms. Specializations: phenomenology, thinking, caring, euthanasia and palliative care, curriculum development for nurses. Specializations: thinking, science curricula for nurses, isotope geochemistry, mass spectrometry.  相似文献   

4.
In recent years, there has been an increasing interest among educational researchers in exploring the relationships between learners’ epistemological beliefs and their conceptions of learning. This study was conducted to investigate these relationships particularly in the domain of science. The participants in this study included 407 Taiwanese college science‐major students. All of them responded to two major questionnaires, one assessing their scientific epistemological beliefs (SEBs) and the other one probing their conceptions of learning science (COLS). The SEB questionnaire included four factors: “certainty,” “source,” “development,” and “justification” of science knowledge. The COLS survey consisted of six factors in a hierarchical order, that is, learning science as “memorizing,” “preparing for tests,” “calculating and practicing,” “increasing one’s knowledge,” “application,” and “understanding and seeing in a new way.” The students’ confidence and interest toward learning science were also assessed by additional questionnaire items. Stepwise regression analyses, in general, showed coherence between students’ SEBs and their COLS, indicating that the sophistication of SEBs was consistent with less agreement with lower‐level COLS (such as “memorizing” and “preparing for tests”) as well as more agreement with higher‐level COLS (such as “understanding and seeing in a new way”). However, the SEB’s “justification” factor was positively related to almost all of COLS factors from the lower‐level to higher‐level. This study finally found that among all of the SEB and COLS factors, the “preparing for tests” factor in COLS was the solely significant variable for predicting students’ interest in science and confidence toward learning science.  相似文献   

5.
This study aimed to assess grade 10 Turkish students' and science teachers' conceptions of nature of science (NOS) and whether these conceptions were related to selected variables. These variables included participants' gender, geographical region, and the socioeconomic status (SES) of their city and region; teacher disciplinary background, years of teaching experience, graduate degree, and type of teacher training program; and student household SES and parents' educational level. A stratified sampling approach was used to generate a representative national sample comprising 2,087 students and 378 science teachers. After establishing their validity in the Turkish context, participants were administered a questionnaire comprising 14 modified “Views on Science‐Technology‐Society” (VOSTS) items to assess their views of certain aspects of NOS. A total of 2,020 students (97%) and 362 teachers (96%) completed the questionnaire. Participant responses were categorized as “naïve,” “have merit,” or “informed,” and the frequency distributions for these responses were compared for various groupings of participants. The majority of participants held naïve views of a majority of the target NOS aspects. Teacher views were mostly similar to those of their students. Teacher and student views of some NOS aspects were related to some of the target variables. These included teacher graduate degree and geographical region, and student household SES, parent education, and SES of their city and geographical region. The relationship between student NOS views and enhanced economic and educational capitals of their households, as well as the SES status of their cities and geographical regions point to significant cultural (specifically Western) and intellectual underpinnings of understandings about NOS. © 2008 Wiley Periodicals, Inc. J Res Sci Teach 45: 1083–1112, 2008  相似文献   

6.
This article investigates three teachers' conceptions and use of inquiry‐based instructional strategies throughout a professional development program. The professional development program consisted of a 2‐week summer inquiry institute and research experience in university scientists' laboratories, as well as three academic year workshops. Insights gained from an in‐depth study of these three secondary teachers resulted in a model of teacher conceptions that can be used to direct future inquiry professional development. Teachers' conceptions of inquiry teaching were established through intensive case–study research that incorporated extensive classroom observations and interviews. Through their participation in the professional development experience, the teachers gained a deeper understanding of how to implement inquiry practices in their classrooms. The teachers gained confidence and practice with inquiry methods through developing and presenting their institute‐developed inquiry lessons, through observing other teachers' lessons, and participating as students in the workshop inquiry activities. Data analysis revealed that a set of four core conceptions guided the teachers' use of inquiry‐based practices in their classrooms. The teachers' conceptions of science, their students, effective teaching practices, and the purpose of education influenced the type and amount of inquiry instruction performed in the high school classrooms. The research findings suggest that to be successful inquiry professional development must not only teach inquiry knowledge, but it must also assess and address teachers' core teaching conceptions. © 2007 Wiley Periodicals, Inc. J Res Sci Teach 44: 1318–1347, 2007  相似文献   

7.
Meaningful academic relationships between adult master’s students and their professors can both deepen students’ learning and serve as a regenerating force for professors. This study employed grounded theory methods to explore the question, “What goes on in relational practice between master’s students and professors?” I interviewed 10 matched pairs of recent alumni and professors who identified as having “a meaningful academic relationship”. Dimensional analysis surfaced two core dimensions: reconstructing and regenerating. In reconstructing, the students’ core dimension reveals the student experience of reconstructing, or understanding more deeply, theory or one’s self. In the case of regenerating, the professor’s core dimension identifies the professors’ experience of “giving back” through their teaching and extending their professional reach by training others. These experiences serve to reinvigorate professors over the course of their careers. In addition, findings in this study resonate with sensitizing concepts including relational cultural theory and relational practice. Finally, the analysis surfaced evidence supporting authentic teaching concepts and connected these concepts to faculty and student learning partnerships.  相似文献   

8.
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.  相似文献   

9.
This study explored the structural relationships among secondary school students’ conceptions, self-regulation, and strategies of learning science in mainland China. Three questionnaires, namely conceptions of learning science (COLS), self-regulation of learning science (SROLS), and strategies of learning science (SLS) were developed for investigating 333 Chinese high school learners’ conceptions, metacognitive self-regulation, and strategies in science. The confirmatory factor analysis results verified the validity of the three surveys. Moreover, the path analyses revealed a series of interesting findings. Learners with lower-level COLS, namely “memorizing,” “testing,” and “practicing and calculating,” tended to use surface learning strategies such as “minimizing scope of the study” and “rote learning.” However, learners’ higher-level COLS, namely “increase of knowledge,” “applying,” “understanding,” and “seeing in a new way,” had complicated connections with their SROLS and SLS. On the one hand, learners’ higher-level COLS had negative relations to “minimizing scope of the study” and “rote learning.” On the other hand, their higher-level COLS were powerful predicators for their metacognitive self-regulation and further affected their use of “deep strategy” and “rote learning.” Though Chinese secondary students with higher-level COLS usually have a negative view of “rote learning,” the functioning of their metacognitive self-regulation may change their initial attitudes towards the surface strategy. Learners with higher-level COLS still used “rote learning” as a prior step for achieving deep learning. Therefore, we concluded that the SROLS played an important mediating role between the COLS and SLS and may change learners’ original intention to utilize learning strategies.  相似文献   

10.
Children's informal and formal learning experiences with geometric shapes currently result in misconceptions that persist into adulthood. Here, we combine research from mathematics education as well as cognitive science pertaining to concepts, categories, and learning strategies to propose a more optimal progression that is better specified and justified than the current standards. To do so, we reframed what constitutes a “simple” shape from perceptual simplicity to simplicity of properties. Our Property-Based Shape Sequence uses property-based criteria of what makes shapes “simple” and progresses in a way that affords opportunities for learners to develop hierarchical conceptions of two-dimensional and three-dimensional shapes. Our goals are threefold: (1) recommend an optimal, mathematically-correct shape learning sequence, (2) correct misconceptions that adults and children harbor about shapes, and (3) encourage cross-disciplinary collaborations between mathematics education and psychology researchers to validate the proposed learning sequence.  相似文献   

11.
This study examined structural characteristics of university engineering students' conceptions of energy elicited through paragraph writing and their relations with categories of their conceptions specific to energy in solution processes identified through interviews. We found that structures of students' conceptions are characterized primarily by characteristic, example‐of/type‐of, and lead‐to types of relations, and these relations correspond with categories of students' conceptions. More specifically, categories of students' conceptions are exclusively related to energy transformation, and students failed to apply the notion of energy conservation demonstrated in structures of their conceptions to explain the temperature change in solution processes. It is concluded that although paragraph writing and interviews solicit different student conceptions, the conceptions identified from the two sources are related and paragraph writing tends to provide a more holistic picture of students' conceptions. This conclusion has clear implications for science curriculum development and instruction. © 2002 Wiley Periodicals, Inc. J Res Sci Teach 39: 423–441, 2002  相似文献   

12.
This study, conducted in an inner-city middle school, followed the conceptual changes shown in 25 students' writing over a 12-week science unit. Conceptual changes for 6 target students are reported. Student understanding was assessed regarding the nature of matter and physical change by paper-and-pencil pretest and posttest. The 6 target students were interviewed about the goal concepts before and after instruction. Students' writing during lesson activities provided qualitative data about their understandings of the goal concepts across the science unit. The researcher constructed concept maps from students' written statements and compared the maps across time to assess changes in the schema of core concepts, complexity, and organization as a result of instruction. Target students' changes were studied in detail to determine patterns of conceptual change. After patterns were located in target students' maps, the remaining 19 students' maps were analyzed for similar patterns. The ideas that students identified in their writing showed changes in central concepts, complexity, and organization as the lessons progressed. When instructional events were analyzed in relation to students' demonstrated ideas, understanding of the goal conceptions appeared in students' writing more often when students had opportunities to explain their new ideas orally and in writing.  相似文献   

13.
Discerning Pedagogical Quality in Preschool   总被引：1，自引：0，他引：1  
A well‐developed and researched conceptual framework exists for identifying undergraduate students' conceptions of learning. In addition, research has been reported on teachers' conceptions of teaching as they relate to their conceptions of learning. The research reported in this paper takes the existing framework into a new area, postgraduate supervisors' conceptions of “research”. It is hypothesized that the development of a conceptual framework that identifies postgraduate students' conceptions of “research”, and how these articulate with the conceptions of research held by their research supervisors, will enable support mechanisms to be developed and used to assist students early in their candidature. In addition, supervisory practice will benefit from being aware of, and sensitive to, the variety and potential effect of these conceptions. While it is recognized that there are strong cultural influences on conceptions of research, this project has focused initially on the conceptions of research generally adopted by Western academic institutions. However, the students involved in the study were not necessarily of a Western educational background. This paper outlines the results of research undertaken to date in identifying supervisors' conceptions. In addition, it discusses supervisors' views on: the purpose of research and what characterizes “good” research and good researchers. Various strategies reported by supervisors to assist their students to develop more comprehensive and sophisticated conceptions of research are also discussed.  相似文献   

14.
The aim of the present study is to shed light on the conceptions that young students have of heat and temperature, concepts that are both important in school science curricula and closely related to daily life. The subjects of the study were students from a rural district in South Korea and they ranged in age from 4 to 11 years. Interviews were conducted with each student on the basis of questions on temperature, thermal insulation, and heat equilibrium. After calculating the frequency and percentage of student responses and analyzing the rationale for their answers, it was found that younger students tended to view temperature as “size” or a “summation of numbers.” This tendency gradually diminished in older students. Most students had alternative conceptions of thermal insulation regardless of age; however, reasoning differed according to age. Younger students displayed a greater tendency to view insulation as a material property, whereas older students showed a greater tendency toward rational heat and temperature conceptions. Most students did not have clear concepts of heat equilibrium regardless of age, but possessed numerous alternative conceptions. © 2007 Wiley Periodicals, Inc. J Res Sci Teach 44: 284–302, 2007  相似文献   

15.
The research reported in this case study explores the understanding of stoichiometry and related concepts of Thai science students in grades 10 and 11 after major national curriculum reforms. Students’ conceptions and alternative conceptions were investigated using a questionnaire - the Stoichiometry Concept Questionnaire (SCQ) (N = 97), which consists of 16 multiple-choice items, the choices for which respondents are required to provide reasons. The findings suggest that less than half of the students surveyed hold what is considered by a panel of experts to be a scientifically acceptable understanding for the conceptions investigated. The main student alternative conceptions are that one mole of all substances has a volume of 22.4 L at STP, that a solution that contains a greater mass of solute has the higher molar concentration, and that the limiting reagent is the reagent for which the lowest mass of reactant is present. Examination of students’ reasons suggests that they resort to the use of algorithms with little understanding of the underlying concepts. It thus seems the national educational reforms have not resulted in a sound understanding of some science concepts. It is recommended that curriculum developers should specify a need for conceptual understanding along with capability in numerical problem-solving in their learning objectives, and link this to assessment regimes that reward conceptual understanding. A need for on-going professional development seems essential if the intentions of the Thai curriculum reforms are to be realized.  相似文献   

16.
This article reports on an exploratory investigation carried out to identify conceptions of some components of worldview, based on logicostructural worldview theory, held by science student teachers in a South African context. It explores relationships among worldviews, student characteristics, and scientific concepts. The sample included 48 final-year science student teachers. Data were gathered by a questionnaire with follow-up interviews. Questions were based on Kearney's model of worldview with stimulus items related to each of seven worldview categories. Responses were categorized and examined for possible relationships. Results of the investigation indicated that students' conceptions of time and distance were nonmechanistic and psychologically bound and that authoritarian scientific explanation was considered as sufficient for proof. Some significant relationships were found between items as well as between field of study and scientific conceptions.  相似文献   

17.
This study examined Malaysian science teachers' pedagogical content knowledge (PCK) of selected physics concepts. The two components of PCK investigated were (i) knowledge of students' understanding, conceptions and misconceptions of topics, and (ii) knowledge of strategies and representations for teaching particular topics. The participants were 12 trainee teachers from various academic science backgrounds attending a one-year postgraduate teacher-training course. They were interviewed on selected basic concepts in physics that are found in the Malaysian Integrated Science curriculum for lower secondary level. The findings showed that trainee teachers' PCK for promoting conceptual understanding is limited. They lacked the ability to transform their understanding of basic concepts in physics required to teach lower secondary school science pupils. The trainees' level of content knowledge affected their awareness of pupils' likely misconceptions. Consequently, the trainees were unable to employ the appropriate teaching strategies required to explain the scientific ideas. This study provides some pedagogical implications for the training of science teachers.  相似文献   

18.
Teachers need an understanding of the nature of science (NOS) to enable them to incorporate NOS into their teaching of science. The current study examines the usefulness of a strategy for challenging or changing teachers’ understandings of NOS. The teachers who participated in this study were 10 initial teacher education chemistry students and six experienced teachers from secondary and primary schools who were introduced to an explicit and reflective activity, a dramatic reading about a historical scientific development. Concept maps were used before and after the activity to assess teachers’ knowledge of NOS. The participants also took part in a focus group interview to establish whether they perceived the activity as useful in developing their own understanding of NOS. Initial analysis led us to ask another group, comprising seven initial teacher education chemistry students, to take part in a modified study. These participants not only completed the same tasks as the previous participants but also completed a written reflection commenting on whether the activity and focus group discussion enhanced their understanding of NOS. Both Lederman et al.’s (Journal of Research in Science Teaching, 39(6), 497–521, 2002) concepts of NOS and notions of “naive” and “informed” understandings of NOS and Hay’s (Studies in Higher Education, 32(1), 39–57, 2007) notions of “surface” and “deep” learning were used as frameworks to examine the participants’ specific understandings of NOS and the depth of their learning. The ways in which participants’ understandings of NOS were broadened or changed by taking part in the dramatic reading are presented. The impact of the data-gathering tools on the participants’ professional learning is also discussed.  相似文献   

19.
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20.
This study conducted at a suburban community college tested a method of conceptual change in which treatment students worked in small cooperative groups on tasks aimed at eliciting their misconceptions so that they could then be discussed in contrast to the scientific conceptions that had been taught in direct instruction. Categorizations of student understanding of the target concepts of the laws of conservation of matter and energy and aspects of the particulate nature of gases, liquids, and solids were ascertained by pre- and posttesting. Audiotapes of student verbal interaction in the small groups provided quantitative and qualitative data concerning student engagement in behaviors suggestive of the conditions posited to be part of the conceptual change process (Posner, Strike, Hewson & Gertzog, 1982). Chi-square analysis of posttests indicated that students in treatment groups had significantly lower (p < 0.05) proportion of misconceptions than control students on four of the five target concepts. Students who exhibited no change in concept state had a higher frequency of verbal behaviors suggestive of “impeding” conceptual change when compared to students who did change. Three factors emerged from qualitative analysis of group interaction that appeared to influence learning: (a) many students had flawed understanding of concepts that supported the target concepts; (b) student views towards learning science affected their engagement in assigned tasks, (c) “good” and “poor” group leaders had a strong influence on group success.  相似文献   

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