共查询到20条相似文献，搜索用时 140 毫秒
1.
余可佳 《中学生英语读写(高考版)》2002,(4)
Scientists have tried to send a man-made earth satellite into space for long. With the rapid development of rocketry, multi-stage rockets were finally designed for this large task.The first of the rockets drops off of itself when its fuel is used up.Then the next rocket starts to fire and finally drops off like the 相似文献
2.
This article reports on the study of the components of scientific imagination and describes the scales used to measure scientific imagination in Korean elementary and secondary students. In this study, we developed an inventory, which we call the Scientific Imagination Inventory (SII), in order to examine aspects of scientific imagination. We identified three conceptual components of scientific imagination, which were composed of (1) scientific sensitivity, (2) scientific creativity, and (3) scientific productivity. We administered SII to 662 students (4th–8th grades) and confirmed validity and reliability using exploratory factor analysis and Cronbach α coefficient. The characteristics of Korean elementary and secondary students' overall scientific imagination and difference across gender and grade level are discussed in the results section. 相似文献
3.
Mehmet Aydeniz Kristen Baksa Jane Skinner 《Journal of Science Education and Technology》2011,20(4):403-421
The purpose of this study was to understand the impact of an apprenticeship program on high school students’ understanding
of the nature of scientific inquiry. Data related to seventeen students’ understanding of science and scientific inquiry were
collected through open-ended questionnaires. Findings suggest that although engagement in authentic scientific research helped
the participants to develop competency in experimentation methods it had limited impact on participants’ learning of the implicit
aspects of scientific inquiry and NOS. Discussion focuses on the importance of making the implicit assumptions of science
explicit to the students in such authentic scientific inquiry settings through structured curriculum. 相似文献
4.
Research in Science Education - While there has been much interest in the power of student-generated multiple representations to promote student reasoning and conceptual understanding, most studies... 相似文献
5.
How Prepared Are Preservice Teachers to Teach Scientific Inquiry? Levels of Performance in Scientific Representation Practices 总被引：1，自引：0，他引：1
Roth Wolff-Michael McGinn Michelle K. Bowen G. Michael 《Journal of Science Teacher Education》1998,9(1):25-48
Journal of Science Teacher Education - 相似文献
6.
Kristine E. Pytash 《Journal of Science Teacher Education》2013,24(5):793-810
Educators have argued the need for greater attention on how teachers learn to teach writing in science (Kelly and Bazerman in Appl Linguist 24(1):28–55, 2003; Martin in Writing science: literacy and discursive power. University of Pittsburgh Press, Pittsburgh, pp 166–202, 1993). This article summarizes the findings of a qualitative study of five science preservice teachers as they experienced a unit of study, an inquiry-based instructional framework for the teaching of writing. Results found initially the science preservice teachers did not have knowledge of specific instructional approaches to teach writing. The science preservice teachers engaged in critical and analytical reading and writing, which enhanced their knowledge of writing and how to teach writing. The unit of study approach to writing may offer teacher educators a way to engage science preservice teachers in a method to teach scientific writing. 相似文献
7.
Shu-Nu Chang Mei-Hung Chiu 《International Journal of Science and Mathematics Education》2005,3(1):117-140
Scientific literacy and authenticity have gained a lot of attention in the past few decades worldwide. The goal of the study was to develop various authentic assessments to investigate students scientific literacy for corresponding to the new curriculum reform of Taiwan in 1997. In the process, whether ninth graders were able to apply school knowledge in real-life problems was also investigated. Over the course of our two-year study, we developed authentic assessments to investigate a stratified random sampling of 1,503 ninth graders levels of scientific literacy, including scientific cognition, process skills, application of science, habits of mind, nature of science, and attitude towards science. The purpose of this article is to discuss three different formats of authentic assessments: multiple-choice, open-ended, and hands-on test items, which we developed to investigate scientific cognition. To validate the three formats of authentic assessments, students performance on these three assessments were compared with the science section of Taiwans Academic Attainment Testing (STAAT), and the values of Pearson correlation coefficient were all at the significant level, ranging from 0.205 to 0.660 (p<0.01). We found that our three authentic assessments were better in evaluating students authentic abilities in science than standardized tests (such as STAAT). Further authentic assessments, particularly the hands-on activity, benefited low-achieving students. Concerning the common themes tested in the authentic assessments, students performed better in a multiple-choice test than an open-ended test on electricity and heat and temperature. In addition, two themes of chemical reactions and reactions of acid and base with indicators were performed best in a hands-on test than in the other two tests. In this article, we provide evidence that authentic assessments could be developed in different formats to investigate students scientific cognition as part of the national test. Of these formats, the multiple-choice, open-ended, and hands-on test items are all shown to be sensitive in their evaluation of students cognition in science. 相似文献
8.
The aim of the present study is to explore the effects of Meta‐strategic Knowledge (MSK) on scientific inquiry learning. MSK is a subcomponent of metacognition defined as general, explicit knowledge about thinking strategies. Following earlier studies that showed considerable effects of explicit instruction of MSK regarding the strategy of variables control, the present study explores whether similar effects are found in two additional scientific thinking strategies: Define Research Questions and Formulate Research Hypotheses. Participants were 119 eighth‐grade students from six classes of a heterogeneous school. Equal numbers of low‐achieving and high‐achieving students were randomly assigned into experimental and control groups. The findings showed dramatic developments in students’ performance following instruction. The effect of the treatment was preserved in a delayed transfer test. Our findings show that explicit teaching of MSK had a stronger effect for low‐achieving students than for high‐achieving students. The implications of the findings for teaching and learning in the context of scientific inquiry are discussed. 相似文献
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10.
Agustín Adúriz-Bravo 《Science & Education》2013,22(7):1593-1611
In this paper I inspect a ‘semantic’ view of scientific models taken from contemporary philosophy of science—I draw upon the so-called ‘semanticist family’, which frontally challenges the received, syntactic conception of scientific theories. I argue that a semantic view may be of use both for science education in the classrooms of all educational levels, and for research and innovation within the discipline of didactics of science. I explore and characterise a model-based account of the nature of science, and derive some implications that may be of interest for our community. 相似文献
11.
Eileen G. Merritt Jennie Chiu Erin Peters-Burton Randy Bell 《Research in Science Education》2018,48(6):1321-1337
The Next-Generation Science Standards (NGSS) challenge primary teachers and students to work and think like scientists and engineers as they strive to understand complex concepts. Teachers and teacher educators can leverage what is already known about inquiry teaching as they plan instruction to help students meet the new standards. This cross-case analysis of a multiple case study examined teacher practices in the context of a semester-long professional development course for elementary teachers. We reviewed lessons and teacher reflections, examining how kindergarten and first grade teachers incorporated NGSS scientific and engineering practices during inquiry-based instruction. We found that most of the teachers worked with their students on asking questions; planning and carrying out investigations; analyzing and interpreting data, using mathematics and computational thinking; and obtaining, evaluating and communicating information. Teachers faced challenges in supporting students in developing their own questions that could be investigated and using data collection strategies that aligned with students’ development of number sense concepts. Also, some teachers overemphasized the scientific method and lacked clarity in how they elicited and responded to student predictions. Discussion focuses on teacher supports that will be needed as states transition to NGSS. 相似文献
12.
Steven C. Kerlin Scott P. McDonald Gregory J. Kelly 《International Journal of Science Education》2013,35(9):1207-1225
This study examined the learning opportunities provided to students through the use of complex geological data supporting scientific inquiry. Through analysis of argumentative discourse in a high school Earth science classroom, uses of US Geological Survey (USGS) data were contrasted with uses of geoscience textbook data. To examine these differences, we conducted a review of frameworks for argumentation analysis, and through adaptation to the research foci of this study, developed a new analytic approach. Applying this approach to student classroom discourse revealed the affordances and constraints of both the complex USGS datasets and the filtered textbook data sources. The challenges of teaching with complex data are presented. 相似文献
13.
文英 《中学生数理化(高中版)》2002,(Z2)
1.Units The metric system of measurement is the standard in the world.The fundamentalunits include the second(s)for time,the meter(m)for length,and the kilogram(kg)for mass. 相似文献
14.
一、词汇过关1.likely【用法】用作形容词,意为“可能的,看来要发生的”,通常作表语,后接不定式或that从句。例如:A re w e likely to arrive in tim e?我们有可能及时到达吗?They are likely to becom e angry w ithhim.他们可能会对他发怒。likely还可表示“prom ising有希望 相似文献
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16.
Ornit Spektor-Levy Yael Kesner Baruch Zemira Mevarech 《International Journal of Science Education》2013,35(13):2226-2253
Nowadays, early science education is well-accepted by researchers, education professionals and policy makers. Overall, teachers’ attitudes and conceptions toward the science subject domain and science education influence their ways of teaching and engagement. However, there is a lack of research regarding factors that affect this engagement in pre-school years. The main assumption of this study is that teachers’ attitudes regarding science in pre-school can shape children's engagement in science and develop their scientific curiosity. Therefore, the main objectives of this study are to investigate the attitudes of pre-school teachers toward engaging in science and to explore their views about the nature of curiosity: who is a curious child and how can a child's natural curiosity be fostered? An extensive survey was conducted among 146 pre-school teachers by employing both qualitative and quantitative approaches. Results indicate that most of the participants believe that scientific education should begin in early childhood; very young children can investigate and take part in a process of inquiry; and scientific activities in pre-school can influence children's long-term attitudes toward science. Despite these views, most participants felt they did not possess sufficient scientific knowledge. Furthermore, participants expressed diverse opinions when asked to identify what constitutes curiosity, how the curious child can be identified and how a child's curiosity can be fostered. The research findings carry significant implications regarding how to implement scientific activities in pre-school, and how to encourage pre-school teachers to engage children in scientific activities in a way that will nurture their natural curiosity. 相似文献
17.
The paper examines central parts of the first of two papers in this journal by Peter Slezak criticising sociology of scientific knowledge and also considers, independently, some of the main philosophical issues raised by the sociologists of science, in particular David Bloor. The general conclusion is that each account alludes to different and crucial aspects of the nature of knowledge without, severally or jointly, being able to theorise them adequately. The appendix contains epistemological theses central to a more adequate theory of scientific knowledge.... our Histories of six Thousand Moons make no Mention of any other, than the two great Empires of Lilliput and Blefuscu. Which mighty Powers have ... been engaged in a most obstinate War for six and thirty Moons past. It began upon the following Occasion. It is allowed on all Hands, that the primitive Way of breaking Eggs before we eat them, was upon the larger End: But ... the Emperor [of Lilliput] ... published an Edict, commanding all his Subjects, upon great Penalties, to break the smaller End of their Eggs. The People so resented this Law, that ... there have been six Rebellions raised on that Account ... These civil Commotions were constantly fomented by the Monarchs of Blefuscu ... It is computed, that eleven Thousand have, at several Times, suffered Death, rather than break Eggs at the smaller End. Many hundred large Volumes have published upon this Controversy ... 相似文献
18.
The present study explores the relationship between students’ views of the nature of science (NOS) and their views of the nature of scientific measurement. A questionnaire with two‐tier diagnostic multiple‐choice items on both the NOS and measurement was administered to 179 first‐year physics students with diverse school experiences. Students’ views on the NOS were classified into four NOS ‘profiles’, and views on measurement were classified according to either the point or set paradigms. The findings show that students with a NOS profile dominated by a belief that the laws of nature are to be discovered by scientists are more likely to have a view of the nature of scientific measurement characterised by a belief in ‘true’ values. On the other hand, students who believe that scientific theories are inventions of scientists, constructed from observations that are then validated through further experimentation, are more likely to have a view of the nature of scientific measurement that is underpinned by the uncertain nature of scientific evidence. The implications for teaching scientific measurement at tertiary level are discussed. 相似文献
19.
Science & Education - Scientific argumentation is a key practice in the construction, confirmation, and legalization of scientific knowledge. Although studies on scientific argumentation have... 相似文献
20.
Maria Lindfors Mikael Winberg Madelen Bodin 《Scandinavian Journal of Educational Research》2019,63(1):124-144
Research on how epistemic beliefs influence students’ learning in different contexts is ambiguous. Given this, we have examined the relationships between students’ scientific epistemic beliefs, their problem solving, and solutions in a constructionist computer-simulation in classical mechanics. The problem-solving process and performance of 19 tenth-grade students, with different scientific epistemic beliefs, were video recorded and inductively coded. Quantitative analysis revealed that different sets of epistemic beliefs were conducive to different aspects of students’ problem-solving process and outcomes. Theoretically sophisticated beliefs were in general associated with logical strategies and high solution complexity. However, authority dependence was associated with high degree of adherence to instructions. Hence, there might not be a universal relationship between the theoretical sophistication of students’ epistemic beliefs and quality of learning outcomes. We suggest that the conduciveness to desired outcomes is a better measure of sophistication than theoretical non-contextualized a priori assumptions. 相似文献