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1.
Practical work is often noted as a core reason many students take on science in secondary schools (high schools). However, there are inherent difficulties associated with classroom practical work that militate against scientific inquiry, an approach espoused by many science educators. The use of interactive simulations to facilitate student inquiry has emerged as a complement to practical work. This study presents case studies of four science teachers using a virtual chemistry laboratory (VCL) with their students in an explicitly guided inquiry manner. Research tools included the use of the Inquiry Science Implementation Scale in a ‘talk-aloud’ manner, Reformed Teaching Observation Protocol for video observations, and teacher interviews. The findings suggest key aspects of practical work that hinder teachers in adequately supporting inquiry and highlight where a VCL can overcome many of these difficulties. The findings also indicate considerations in using the VCL in its own right. 相似文献
2.
The purpose of this study was to examine the effectiveness of traditional versus guided inquiry (with problem-solving process and cognitive function training) on high school chemistry knowledge, science process skills, scientific attitudes, and problem-solving competency. Two classes of students were recruited from three classes of Grade 11 students at one school in North-eastern Thailand. Using a split-plot design, students were assigned to an experimental (N = 34) and a control group (N = 31), and were administered (a) learning achievement tests (chemistry knowledge, science process skills, and scientific attitude), (b) a problem-solving competency test, and c) tests of cognitive functioning. The findings showed that students’ learning achievement and problem-solving competency in the guided inquiry group were significantly higher than in the traditional group. The effect of the new teaching method does not seem to stem solely from improvement in cognitive functioning. We attributed the improvement to greater flexibility in the amount of information provided by the teachers, more effortful processing by the students, and greater collaboration amongst the students. 相似文献
3.
Katherine L. McNeill Diane Silva Pimentel Eric G. Strauss 《International Journal of Science Education》2013,35(15):2608-2644
Inquiry-based curricula are an essential tool for reforming science education yet the role of the teacher is often overlooked in terms of the impact of the curriculum on student achievement. Our research focuses on 22 teachers’ use of a year-long high school urban ecology curriculum and how teachers’ self-efficacy, instructional practices, curricular enactments and previous experience impacted student learning. Data sources included teacher belief surveys, teacher enactment surveys, a student multiple-choice assessment focused on defining and identifying science concepts and a student open-ended assessment focused on scientific inquiry. Results from the two hierarchical linear models indicate that there was significant variation between teachers in terms of student achievement. For the multiple-choice assessment, teachers who spent a larger percentage of time on group work and a smaller percentage of time lecturing had greater student learning. For the open-ended assessment, teachers who reported a higher frequency of students engaging in argument and sharing ideas had greater student learning while teachers who adapted the curriculum more had lower student learning. These results suggest the importance of supporting the active role of students in instruction, emphasising argumentation, and considering the types of adaptations teachers make to curriculum. 相似文献
4.
Vicente Talanquer 《Science & Education》2013,22(7):1757-1773
Studies of the philosophy of chemistry over the past 15 years suggest that chemistry is a hybrid science which mixes scientific pursuits with technological applications. Dominant universal characterizations of the nature of science thus fail to capture the essence of the discipline. The central goal of this position paper is to encourage reflection about the extent to which dominant views about quality science education based on universal views of scientific practices may constrain school chemistry. In particular, we discuss how these predominant ideas restrict the development of chemistry curricula and instructional approaches that may better support the learning of the ideas and practices that studies of the philosophy of chemistry suggest are at the core of the discipline. Our analysis suggests that philosophical studies about the nature of chemistry invite us to transgress traditional educational boundaries between science and technology, inquiry and design, content and process, and to reconceptualize school chemistry as a paradigmatic techno scientific subject. To support these changes, chemical education researchers should expand the scope of their investigations to better understand how students and teachers reason about and engage in more authentic ways of chemical thinking and doing. 相似文献
5.
分析了传统高职化学基础课程体系和内容的缺陷,提出了课程整合的原则和策略：以物理化学为主线对无机化学、分析化学和物理化学进行课程整合,确定了新的教学大纲和教学实施计划,建立了物理化学、无机化学、分析化学三位一体的学科新体系． 相似文献
6.
Jaana Herranen Päivi Kousa Erik Fooladi Maija Aksela 《International Journal of Science Education》2013,35(14):1977-1998
ABSTRACTThe aim of this study is to provide an understanding of context-based inquiry teaching within a humanistic perspective on science education by studying pre-service teachers’ beliefs about inquiry and their implementations of inquiry in their context-based teaching sequences. Therefore, five pre-service teachers enrolled in a university undergraduate course called ‘Inquiry-based chemistry education II’ (5 ECTS) were involved in an empirical case study. The pre-service teachers’ implementations of inquiry were studied from their reports on self-designed context-based inquiry teaching sequences for students age 13–15, and their beliefs by interviewing them after the course. The results indicate that the most frequent aspects of inquiry, which were implemented, were that inquiry (i) includes a context, (ii) is a way to act, (iii) is a way to think, and (iv) includes source/information evaluation and argumentation. The pre-service teachers’ beliefs about inquiry were shown to reflect manifold aspects of inquiry, such as the difficulty in explaining it. However, this difficulty in encapsulating inquiry into a clear-cut definition is not necessarily an impediment to inquiry-based teaching. Furthermore, inquiry is inherently context-bound, and context-based teaching requires extra-situational knowledge from the context and not only declarative knowledge from science. This should be considered to support effective professional development. 相似文献
7.
Knowledge and the educative functions of a university: Designing the curriculum of higher education 总被引：1，自引：1，他引：0
Edmund C. Short 《课程研究杂志》2013,45(2):139-148
The central thesis of this paper is that the learning of science in integrated curricular contexts requires a broader theoretical framework than is typically adopted by researchers and teachers. The common practice of interpreting science learning in terms of conceptual and procedural understandings in such contexts is problematized through an examination of the literature. As an alternative to the traditional approach, a triangulation of three theoretical perspectives is undertaken to view the science learning in a classroom case study of integrated curriculum. The conclusion highlights the necessity of balance between the disciplinary forces on curriculum and the forces that better reflect the multiple dimensions of learning in the real world. The use of theoretical triangulation is demonstrated as a technique through which a balanced, and more complete, view of learning in integrated contexts can be achieved. 相似文献
8.
The potential of a theory of variation-framed learning study, a teacher professional development approach, to help teachers overcome curricular and pedagogical challenges associated with teaching new science curricula content was explored. With a group of Singapore teachers collaboratively planning and teaching new genetics content, phenomenographic analysis of data corpus from classroom observations, teacher meetings and interviews revealed teacher learning that manifested in the teachers’ experiences. These were captured as (1) increased degrees of student-centered pedagogy and challenges to teachers’ prior assumptions about science pedagogy, (2) increased awareness of possibilities and limitations of their beliefs about science pedagogy, and (3) emergence of new understandings about new curricular content and science pedagogy. The possibility of transformative and generative learning is also discussed. 相似文献
9.
Reform based curriculum offer a promising avenue to support greater student achievement in science. Yet teachers frequently adapt innovative curriculum when they use them in their own classrooms. In this study, we examine how 19 teachers adapted an inquiry‐oriented middle school science curriculum. Specifically, we investigate how teachers' curricular adaptations (amount of time, level of completion, and activity structures), teacher self‐efficacy (teacher comfort and student understanding), and teacher experience enacting the unit influenced student learning. Data sources included curriculum surveys, videotape observations of focal teachers, and pre‐ and post‐tests from 1,234 students. Our analyses using hierarchical linear modeling found that 38% of the variance in student gain scores occurred between teachers. Two variables significantly predicted student learning: teacher experience and activity structure. Teachers who had previously taught the inquiry‐oriented curriculum had greater student gains. For activity structure, students who completed investigations themselves had greater learning gains compared to students in classrooms who observed their teacher completing the investigations as demonstrations. These findings suggest that it can take time for teachers to effectively use innovative science curriculum. Furthermore, this study provides evidence for the importance of having students actively engaging in inquiry investigations to develop understandings of key science concepts. © 2010 Wiley Periodicals, Inc., J Res Sci Teach 48: 149–169, 2011 相似文献
10.
Cory T. Forbes 《Journal of Science Teacher Education》2013,24(1):179-197
In this nested mixed methods study I investigate factors influencing preservice elementary teachers’ adaptation of science curriculum materials to better support students’ engagement in science as inquiry. Analyses focus on two ‘reflective teaching assignments’ completed by 46 preservice elementary teachers in an undergraduate elementary science methods course in which they were asked to adapt existing science curriculum materials to plan and enact inquiry-based science lessons in elementary classrooms. Data analysis involved regression modeling of artifacts associated with these lessons, as well as in-depth, semester-long case studies of six of these preservice teachers. Results suggest that features of the existing science curriculum materials, including measures of how inquiry-based they were, have a relatively small influence on the preservice teachers’ curricular adaptations, while teacher-specific variables account for a much greater percentage of the variance. Evidence from the case studies illustrates the critical impact of the preservice teachers’ field placement contexts as an explanatory, teacher-specific factor in their curricular adaptations. These findings have important implications for science teacher educators and science curriculum developers, in terms of not only better understanding how preservice teachers engage with curriculum materials, but also how programmatic features of teacher education programs influence their ability to do so. 相似文献
11.
The purpose of this study was to investigate the beliefs of six experienced high school science teachers about (1) what is successful science learning; (2) what are the purposes of laboratory in science teaching; and (3) how inquiry is implemented in the classroom. An interpretive multiple case study with an ethnographic orientation was used. The teachers' beliefs about successful science learning were substantively linked to their beliefs about laboratory and inquiry implementation. For example, two teachers who believed that successful science learning was deep conceptual understanding, used verification labs primarily to illustrate these concepts and used inquiry as a type of isolated problem‐solving experience. Another teacher who believed that successful science learning was enculturation into scientific practices used inquiry‐based labs extensively to teach the practices of science. Tension in competing beliefs sets and implications for reform are discussed. ? 2004 Wiley Periodicals, Inc. J Res Sci Teach 41: 936‐960, 2004. 相似文献
12.
The aim of this study is to contribute to an understanding of how curricular change is accomplished in practice, including the positions and conflicts of key stakeholders and participants, and their actions in the process. As a case, we study the treatment of energy in Swedish secondary curricula in the period 1962–2011 and, in particular, how the notion of energy quality was introduced in the curricula in an energy course at upper secondary school in 1983 and in physics at lower secondary school in 1994. In the analysis, we use Roberts’ two competing visions of science education, Vision I in which school science subjects largely mirror their corresponding academic disciplines and Vision II that incorporates societal matters of science. In addition, a newly suggested Vision III represents a critical perspective on science education. Our analysis shows how Vision II and III aspects of science education have gained importance in curricula since the 1980s, but in competition with Vision I considerations. Energy quality played a central role in providing Vision II and III arguments in the curricular debate on energy teaching. Subsequent educational research has found that Swedish teachers and students struggle with how to relate to energy quality in physics teaching, which we explain as partly due to the tension between the competing visions. 相似文献
13.
In this paper, we present a review of research into the problems of implementing authentic scientific inquiry curricula in
schools and the emerging use of educational Multi-User Virtual Environments (MUVEs) to support interactive scientific inquiry
practices. Our analysis of existing literature in this growing area of study reveals three recurrent themes: (1) with careful
design and inclusion of virtual inquiry tools, MUVE-based curricula can successfully support real-world inquiry practices
based on authentic interactivity with simulated worlds and tools, (2) Educational MUVEs can support inquiry that is equally
compelling for girls and boys, and (3) research on student engagement in MUVE-based curricula is uneven. Based on these themes,
we suggest that future large-scale research should investigate (1) the extent to which MUVE-based inquiry learning can be
a viable substitute for the activities involved in real-world inquiry; (2) the impact of MUVEs on learning and engagement
for currently underserved students, and (3) the impact on engagement and learning of individual aspects of MUVE environments,
particularly virtual experimentation tools designed to scaffold student inquiry processes and maintain engagement. Additionally,
we note that two identified issues with integrating scientific inquiry into the classroom are currently not addressed by MUVE
research. We urge researchers to investigate whether (1) MUVE-based curriculum can help teachers meet state and national standards
with inquiry curricula; and (2) scientific inquiry curricula embedded in MUVE environments can help teachers learn how to
integrate interactive scientific inquiry into their classroom.
This material is based upon work supported by the National Science Foundation under Grant No. 0310188. Any opinions, findings,
and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the
views of the National Science Foundation. 相似文献
14.
The purpose of this study was to determine teachers’ attitudes, values, and beliefs about inquiry. The participants of this study were 275 middle grade and secondary science teachers from four districts in North Carolina. Issues such as class size, accountability, curricular demands, and administrative support are perceived as constraints, impeding the use of inquiry. These are the issues that must be effectively dealt with in the professional education and professional development of all science teachers. 相似文献
15.
Bioinformatics, merging biological data with computer science, is increasingly incorporated into school curricula at all levels.
This case study of 10 secondary school students highlights student individual differences (especially the way they processed
information and integrated procedural and analytical thought) and summarizes a variety of critical situations that teachers
may encounter when teaching bioinformatics. Students who integrated factual information with procedural and analytical skills
were closest to content mastery; while students who had fundamental deficiencies in factual recall or were less adept in integrating
higher order knowledge with specific facts and procedural skills had difficulty mobilizing critical analytical skills needed
to master the bioinformatics tasks. Broader implications are presented for teacher education, curriculum design, and research. 相似文献
16.
Lei Wang Ronghui Zhang David Clarke Weizhen Wang 《Journal of Science Education and Technology》2014,23(2):280-297
Enactment of scientific inquiry in classroom has attracted a great attention of science educators around the world. In this study, we examined two competent teachers’ (one Grade 9 chemistry teacher and one Grade 4 science teacher) enactment of scientific inquiry in selected teaching units to reveal the characteristics of enacted inquiry at different grade levels by analyzing lesson sequence videos. The coding schemes for enacted inquiry consist of ontological properties and instructional practices. Pre-topic and post-topic teacher interviews and the two teachers’ responses to a questionnaire were adopted to identify the factors influencing teacher’s enactment. The results indicate that the two case teachers’ enactment involved a range of inquiry activities. The enacted inquiry at fourth-grade level covered all the inquiry elements, tending to engage students in the whole procedure of inquiry. The ninth-grade chemistry class placed emphasis on the elements “making plans” to solve problems in authentic context. Important factors influencing the enactment include teacher’s understanding about scientific inquiry, textbooks, assessment, students and resource. Implications for inquiry enactment and instruction improvement have been provided. 相似文献
17.
18.
化学是一门以实验为基础的学科,化学实验有助于激发学生对科学的兴趣,提高学生的科学探究能力。但是传统的化学实验教学存在一定的局限性,不利于提升学生的化学学科素养。因此,教师可根据化学实验的特点、学生的基本学情,在化学实验教学中引入信息技术,以优化学生的学习体验,提升学生的化学学科核心素养。 相似文献
19.
Despite the advocated importance of twenty-first century competences in education, it appears that they are not systematically integrated in national curricula, school curricula and classroom activities. Potential explanations can be found in the current ambiguity of definitions for twenty-first century competences and the absence of educational actors in curriculum development. Responding to both shortcomings, this study aims to explore how teachers’ conceptualization and enactment of twenty-first century competences constitute dimensions that can inform curricular guidelines. An exploratory factor analysis of teachers’ self-reported classroom activities that foster students’ twenty-first century competences was conducted. The data comprised responses of 2,804 primary- and secondary-school teachers to a web-survey about the perceived occurrence of specific classroom activities targeting twenty-first century competences. Results suggested six coherent dimensions of classroom activities that foster twenty-first century competences: digital literacy, innovative thinking, critical thinking and communication, (digital) citizenship, self-regulated learning, and (computer-supported) collaborative learning. Nevertheless, there were substantial interrelationships among the six dimensions. This demonstrated that teachers did not perceive twenty-first century competences to be fostered by disconnected classroom activities, but that they already have a more integrative conception of the curricular innovation. The implications of these findings for curricula, teaching practice and research are discussed. 相似文献
20.
David Fortus R. Charles Dershimer Joseph Krajcik Ronald W. Marx Rachel Mamlok‐Naaman 《科学教学研究杂志》2004,41(10):1081-1110
Design‐Based Science (DBS) is a pedagogy in which the goal of designing an artifact contextualizes all curricular activities. Design is viewed as a vehicle through which scientific knowledge and real‐world problem‐solving skills can be constructed. Following Anderson and Hogan's (1999) call to document the design of new science pedagogies, this goal of this article is twofold: (a) to describe DBS, and (b) to evaluate whether significant science knowledge was constructed during consecutive enactments of three DBS units. In this study, 92 students participated in the consecutive enactments of three different DBS units. The development of their scientific knowledge was assessed through posters and models constructed during the curricular enactments and by identical pre‐ and post‐instruction written tests. The posttests showed considerable gains compared with the pretests, while the models and posters show application of this newly constructed knowledge in solving a design problem. These positive results support efforts being made to restructure school science around inquiry‐based curricula in general and design‐based curricula in particular. © 2004 Wiley Periodicals, Inc. J Res Sci Teach 41: 1081–1110, 2004 相似文献