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1.
Jing-Wen Lin 《International Journal of Science and Mathematics Education》2016,14(2):287-307
Holding scientific conceptions and having the ability to accurately predict students’ preconceptions are a prerequisite for science teachers to design appropriate constructivist-oriented learning experiences. This study explored the types and sources of students’ preconceptions of electric circuits. First, 438 grade 3 (9 years old) students were surveyed about their pre-instructional ideas on electric circuits and where they developed these ideas. Then, 76 elementary school teachers with master’s degrees in science education were selected and their content knowledge of electric circuits was documented. Next, they were asked to make predictions about the kind of preconceptions most grade 3 students would have about electric circuits and the most dominant source of these preconceptions. The results revealed that these skilled teachers held scientific conceptions for most of the questions surveyed; however, they inaccurately predicted the types and sources of the students’ prominent alternative preconceptions. Specifically, they underestimated the possibility of students holding scientific concepts and neglected the effect of students’ intuition on their conceptions. Implications for teaching and teacher education are discussed. 相似文献
2.
Holding scientific conceptions and having the ability to accurately predict students’ preconceptions are a prerequisite for science teachers to design appropriate constructivist-oriented learning experiences. This study explored the types and sources of students’ preconceptions of electric circuits. First, 438 grade 3 (9 years old) students were surveyed about their pre-instructional ideas on electric circuits and where they developed these ideas. Then, 76 elementary school teachers with master’s degrees in science education were selected and their content knowledge of electric circuits was documented. Next, they were asked to make predictions about the kind of preconceptions most grade 3 students would have about electric circuits and the most dominant source of these preconceptions. The results revealed that these skilled teachers held scientific conceptions for most of the questions surveyed; however, they inaccurately predicted the types and sources of the students’ prominent alternative preconceptions. Specifically, they underestimated the possibility of students holding scientific concepts and neglected the effect of students’ intuition on their conceptions. Implications for teaching and teacher education are discussed.
相似文献3.
Recently, cognitive load theory has been considered within conceptual change research. Although the effectiveness of refutation texts (RT) has been proven, the conceptual change process involved and the influencing factors remain unclear. To contribute to this research, we investigate the efficiency of pupils working with a modified RT design in which the alternative and scientific conceptions are not explicitly contrasted, and we examine the level of learner expertise as a possible influencing factor. We investigated the efficiency based on the scientific conceptions learned and the mental effort invested (reflecting cognitive load) during instruction (N = 195, 9th graders). Only pupils with high prior knowledge (experts) showed low efficiency and higher mental effort when dealing with alternative conceptions. Our results indicate that the experts did not profit from the mental effort they invested in the learning process, whereas the novices seemed to profit from their invested mental effort. 相似文献
4.
《学习科学杂志》2013,22(2):115-163
This article uses a critical evaluation of research on student misconceptions in science and mathematics to articulate a constructivist view of learning in which student conceptions play productive roles in the acquisition of expertise. We acknowledge and build on the empirical results of misconceptions research but question accompanying views of the character, origins, and growth of students' conceptions. Students have often been viewed as holding flawed ideas that are strongly held, that interfere with learning, and that instruction must confront and replace. We argue that this view overemphasizes the discontinuity between students and expert scientists and mathematicians, making the acquisition of expertise difficult to conceptualize. It also conflicts with the basic premise of constructivism: that students build more advanced knowledge from prior understandings. Using case analyses, we dispute some commonly cited dimensions of discontinuity and identify important continuities that were previously ignored or underemphasized. We highlight elements of knowledge that serve both novices and experts, albeit in different contexts and under different conditions. We provide an initial sketch of a constructivist theory of learning that interprets students' prior conceptions as resources for cognitive growth within a complex systems view of knowledge. This theoretical perspective aims to characterize the interrelationships among diverse knowledge elements rather than identify particular flawed conceptions; it emphasizes knowledge refinement and reorganization, rather than replacement, as primary metaphors for learning; and it provides a framework for understanding misconceptions as both flawed and productive. 相似文献
5.
Research suggests that conventional teaching techniques have proved largely ineffective for dealing with the problem of science students’ misconceptions or alternative frameworks. This paper reports an investigation whereby inter‐personal conflict within dyadic interactions is used as a strategy for promoting development towards correct scientific conceptions in specific areas of electrical circuits and mechanics amongst first‐year tertiary physics students. The data indicate that a large number of physics students at the tertiary level hold non‐scientific conceptions of these physical phenomena. The dyadic interaction strategy proved effective as a means of encouraging students to actively and closely consider their own thinking about basic physical concepts. Further, results highlight the importance of inter‐personal conflict in the process of conceptual change. 相似文献
6.
The purpose of this study was to describe the problem-solving behaviors of experts and novices engaged in solving seven chemical equilibrium problems. Thirteen novices (five high-school students, five undergraduate majors, and three nonmajors) and ten experts (six doctoral students and four faculty members) were videotaped as they individually solved standard chemical equilibrium problems. The nature of the problems was such that they required more than mere recall or algorithmic learning and yet simple enough to provide the novices a reasonable chance of solving them. Extensive analysis of the think-aloud protocols produced 27 behavioral tendencies that can be used to describe and differentiate between successful and unsuccessful problem solvers. Successful solvers' perceptions of the problem were characterized by careful analysis and reasoning of the task, use of related principles and concepts to justify their answers, frequent checks of the consistency of answers and reasons, and better quality of procedural and strategic knowledge. Unsuccessful subjects had many knowledge gaps and misconceptions about the nature of chemical equilibrium. Even faculty experts were sometimes unable to correctly apply common chemical principles during the problem-solving process. Important theoretical concepts such as molar enthalpy, heat of reaction, free energy of formation, and free energy of reaction were rarely used by novices in explaining problems. 相似文献
7.
Students often hold misconceptions about natural phenomena. To overcome misconceptions students must become aware of the scientific conceptions, the evidence that bears on the validity of their misconceptions and the scientific conceptions, and they must be able to generate the logical relationships among the evidence and alternative conceptions. Because formal operational reasoning patterns are necessary to generate these logical relationships, it was predicted that, following instruction, formal operational students would hold significantly fewer misconceptions than their concrete operational classmates. To test this hypothesis 131 seventh-grade students were administered an essay test on principles of genetics and natural selection following instruction. Responses were categorized in terms of the number of misconceptions present. The number of misconceptions was compared to reasoning ability (concrete, transitional, formal), mental capacity (<6, 6, 7), verbal intelligence (low, medium, high), and cognitive style (field dependent, intermediate, field independent). The only student variable consistently and significantly related to the number of misconceptions was reasoning ability; thus, support for the major hypothesis of the study was obtained. 相似文献
8.
The purpose of this research was to investigate students' understanding of electrochemistry following a course of instruction. A list of conceptual and propositional knowledge statements was formulated to identify the knowledge base necessary for students to understand electric circuits and oxidation-reduction equations. The conceptual and propositional knowledge statements provided the framework for the development of a semistructured interview protocol which was administered to 32 students in their final year of high school chemistry. The interview questions about electric circuits revealed that several students in the sample were confused about the nature of electric current both in metallic conductors and in electrolytes. Students studying both physics and chemistry were more confused about current flow in metallic conductors than students who were only studying chemistry. In the section of the interview which focused on oxidation and reduction, many students experienced problems in identifying oxidation-reduction equations. Several misconceptions relating to the inappropriate use of definitions of oxidation and reduction were identified. The data illustrate how students attempted to make sense of the concepts of electrochemistry with the knowledge they had already developed or constructed. The implications of the research are that teachers, curriculum developers, and textbook writers, if they are to minimize potential misconceptions, need to be cognizant of the relationship between physics and chemistry teaching, of the need to test for erroneous preconceptions about current before teaching about electrochemical (galvanic) and electrolytic cells, and of the difficulties experienced by students when using more than one model to explain scientific phenomena. 相似文献
9.
ABSTRACTThe present research tested the hypothesis that the reading of science text can create new misconceptions in students with incongruent prior knowledge, and that these new misconceptions will be similar to the fragmented and synthetic conceptions obtained in prior developmental research. Ninety-nine third- and fifth-grade children read and recalled one of two texts that provided scientific or phenomenal explanations of the day/night cycle. All the participants gave explanations of the phenomenon in question prior to reading one of the texts and after they read it. The results showed that the participants who provided explanations of the day/night cycle at pretest incongruent with the scientific explanation recalled less information and generated more invalid inferences. An analysis of the participants’ posttest explanations indicated that these readers formed new misconceptions similar to the fragmented and synthetic conceptions obtained in developmental research. The implications of the above for text comprehension and science education research are discussed. 相似文献
10.
前科学概念指的是与科学概念的内涵、外延不一致的个体概念,包括错误概念、相异概念、锚概念、前概念等。狭义的＂前概念＂指教学前概念,广义的＂前概念＂指前科学概念。错误概念并不是内涵完全错误的概念。＂错误概念＂、＂相异概念＂都具有否定的内涵;＂前科学概念＂是一个比较准确和相对完整的术语。前科学概念是一种值得教育者注意和利用的教育资源。 相似文献
11.
TM Andrews RM Price LS Mead TL McElhinny A Thanukos KE Perez CF Herreid DR Terry PP Lemons 《CBE life sciences education》2012,11(3):248-259
This study explores biology undergraduates' misconceptions about genetic drift. We use qualitative and quantitative methods to describe students' definitions, identify common misconceptions, and examine differences before and after instruction on genetic drift. We identify and describe five overarching categories that include 16 distinct misconceptions about genetic drift. The accuracy of students' conceptions ranges considerably, from responses indicating only superficial, if any, knowledge of any aspect of evolution to responses indicating knowledge of genetic drift but confusion about the nuances of genetic drift. After instruction, a significantly greater number of responses indicate some knowledge of genetic drift (p = 0.005), but 74.6% of responses still contain at least one misconception. We conclude by presenting a framework that organizes how students' conceptions of genetic drift change with instruction. We also articulate three hypotheses regarding undergraduates' conceptions of evolution in general and genetic drift in particular. We propose that: 1) students begin with undeveloped conceptions of evolution that do not recognize different mechanisms of change; 2) students develop more complex, but still inaccurate, conceptual frameworks that reflect experience with vocabulary but still lack deep understanding; and 3) some new misconceptions about genetic drift emerge as students comprehend more about evolution. 相似文献
12.
Jacob N. Burgoon Mandy L. Heddle Emilio Duran 《Journal of Science Teacher Education》2011,22(2):101-114
There is a large body of research that has explored students’ misconceptions about science phenomena. Less research, however,
has been devoted to identifying teachers’ misconceptions, but the results of the few existing studies demonstrate that teachers
and students possess similar misconceptions. This study explored the physical science conceptions of 103 elementary science
teachers to determine whether, after three decades of misconception research, teachers still possess conceptions similar to
those held by students. We found that our teachers expressed misconceptions regarding gravity, magnetism, gases, and temperature
that were similar to common student misconceptions. Suggestions for improving science professional development programs are
discussed. 相似文献
13.
Jacob N. Burgoon Mandy L. Heddle Emilio Duran 《Journal of Science Teacher Education》2010,21(7):859-872
There is a large body of research that has explored students’ misconceptions about science phenomena. Less research, however,
has been devoted to identifying teachers’ misconceptions, but the results of the few existing studies demonstrate that teachers
and students possess similar misconceptions. This study explored the physical science conceptions of 103 elementary science
teachers to determine whether, after three decades of misconception research, teachers still possess conceptions similar to
those held by students. We found that our teachers expressed misconceptions regarding gravity, magnetism, gases, and temperature
that were similar to common student misconceptions. Suggestions for improving science professional development programs are
discussed. 相似文献
14.
M. J. Hermida M. S. Segretin A. Soni García S. J. Lipina 《Educational research; a review for teachers and all concerned with progress in education》2016,58(4):457-472
Background: Teachers’ conceptions and misconceptions about neuroscience are crucial in establishing a proper dialogue between neuroscience and education. In recent years, studies in different countries have examined primary and secondary school teachers’ conceptions. However, although preschool education has proved its importance to later academic outcomes, there is limited investigation of neuroscience conceptions focused exclusively on preschool teachers.Purpose: The present study sought to explore preschool teachers’ conceptions and misconceptions about neuroscience in an Argentine setting.Sample, design and methods: We used quantitative and qualitative approaches to explore concepts about neuroscience, including specific neuromyths. Data were collected using a 24-statement questionnaire and 5 in-depth interviews. The survey was administered to 204 teachers of children between the ages of 0–5-years in Argentina.Results and conclusions: Results from this exploratory study suggested a relatively high level of general knowledge of neuroscience amongst the preschool teachers in the study. However, three particular issues seemed unclear for teachers: memory, plasticity and the myth that ‘we only use 10% of the brain’. Specifically, ‘memory’ was understood as ‘learning by heart’; neural underpinnings of memory and plasticity processes were unknown; and the myth that we only use 10% of the brain was used to explain individual differences in intelligence in a straightforward way. In addition, anecdotal evidence was used by teachers to justify their conceptions about neuroscience. Finally, the wider implications of these results for bridging neuroscience and education are discussed. 相似文献
15.
Ying-Shao Hsu Li-Fen Lin Hsin-Kai Wu Dai-Ying Lee Fu-Kwun Hwang 《Journal of Science Education and Technology》2012,21(5):588-606
This study compared modeling skills and knowledge structures of four groups as seen in their understanding of air quality. The four groups were: experts (atmospheric scientists), intermediates (upper-level graduate students in a different field), advanced novices (talented 11th and 12th graders), and novices (10th graders). It was found that when the levels of modeling skills were measured, for most skills there was a gradual increase across the spectrum from the novices to the advanced novices to the intermediates to the experts. The study found the experts used model-based reasoning, the intermediates and advanced novices used relation-based reasoning, and the novices used phenomena-based reasoning to anticipate conclusions. The experts and intermediates used more bi-variable relationships in experimental design and anticipated conclusions, but used more multiple-variable relationships in identifying relationships. By contrast, the advanced novices and novices mostly used bi-variable relationships in all modeling skills. Based on these findings, we suggest design principles for model-based teaching and learning such as designing learning activities to encourage model-based reasoning, scaffolding one??s modeling with multiple representations, testing models in authentic situations, and nurturing domain-specific knowledge during modeling. 相似文献
16.
Prof. Dr. Felicitas Thiel Dipl.-Psych. Sabine G. Richter Dr. Diemut Ophardt 《Zeitschrift für Erziehungswissenschaft》2012,15(4):727-752
Classroom management is one of the most important factors regarding the quality of teaching, because effective classroom management contributes to maximizing time on task. In an expert-novice study, strategies and interventions of effective classroom management were explored. Videotaped lessons of eleven experts and six novice teachers were analyzed comparatively, sequence by sequence. The study focused on transitions between seatwork or groupwork and two-way-presentations. The results strengthen the hypothesis that experts?? performance differs significantly from the performance of novices. Experts not only notice students?? difficulties in following the program of action at an early stage, but they also use many different strategies and interventions to direct the activity flow continuously and to activate the whole class. In comparison, novices often disrupt the timeflow themselves, they focus their attention selectively on parts of the class, and they are more prone to becoming absorbed when interacting with single students. An important aspect of experts?? competence is that they are able to intertwine single interventions. To put it another way: experts orchestrate their interventions virtuously. 相似文献
17.
This paper reports on the development and implementation of an introductory course on electric circuits based on a constructivist model of curriculum development and teaching. Pupil interviews before instruction explored and clarified the range of children's existing ideas and conceptions. A teaching sequence was designed to elicit pupils’ ideas, to challenge these experimentally where they differed from accepted scientific ideas and to encourage discussion and reformulation of ideas. Post‐instruction interviews showed improved pupil understanding of several important basic concepts. The constructivist approach appeared to provide a viable and satisfactory basis for teachers’ classroom decision‐making and for the structuring and sequencing of activities as the course progressed. 相似文献
18.
Toward a durable prevalence of scientific conceptions: Tracking the effects of two interfering misconceptions about buoyancy from preschoolers to science teachers 
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下载免费PDF全文 《科学教学研究杂志》2017,54(9):1121-1142
19.
Pedagogical content knowledge of experts and novices—what knowledge do they activate when analyzing science lessons? 下载免费PDF全文
下载免费PDF全文 In the current debate on pedagogical content knowledge (PCK), the term is used to refer to the context‐specific knowledge that teachers activate when reflecting on practice. Against the background of this debate, we conducted an empirical study and sought to answer the question of which knowledge experts and novices activated in assessing a videotaped lesson in relation to its effectiveness for learning. Our assumption was that the participants activate their PCK as a blending of content knowledge (CK) and pedagogical knowledge (PK) as suggested by Shulman's amalgam thesis. The participants (9 experts and 9 novices) were shown a lesson on optics, in which the law of refraction (Snell's law) was being studied. In a subsequent interview, the participants were asked to analyze the observed lesson. A qualitative and quantitative evaluation of the interviews showed that experts activated both CK and PK intensively and in this respect they differed significantly from novices. Further analysis of the expert statements also proved that they do not activate their CK and PK in isolation, but instead combine both kinds of knowledge together, in line with Shulman's amalgam thesis. © 2017 Wiley Periodicals, Inc. J Res Sci Teach 55: 44–67, 2018 相似文献
20.
The hypothesis that an early adolescent brain growth plateau and spurt exists and that this plateau and spurt influence students' ability to reason scientifically and to learn theoretical science concepts was tested. In theory, maturation of the prefrontal lobes during early adolescence allows for improvements in students' abilities to inhibit task‐irrelevant information and coordinate task‐relevant information, which along with both physical and social experience influences scientific reasoning ability and the ability to reject scientific misconceptions and accept scientific conceptions. Two hundred ten students ages 13–16 years enrolled in four Korean secondary schools were administered tests of four prefrontal lobe activities, a test of scientific reasoning ability, and a test of air pressure concepts derived from kinetic‐molecular theory. A series of 14 lessons designed to teach the concepts were then taught. The concepts test was then readministered following instruction. As predicted, among the 13‐ and 14‐year‐olds, performance on the prefrontal lobe measures remained similar or regressed. Performance then improved considerably among the 15‐ and 16‐year‐olds. Also as expected, the measures of prefrontal lobe activity correlated highly with scientific reasoning ability. In turn, prefrontal lobe activity and scientific reasoning ability predicted concept gains and posttest performance. A principal components analysis showed that the study variables had two main components, which were interpreted as an inhibiting and a representing component. Therefore, theoretical concept acquisition was interpreted as a process involving both the inhibition of task‐irrelevant information (i.e., the rejection of intuitively derived misconceptions) and the representation of task‐relevant information (i.e, complex hypothetico‐deductive arguments and counterintuitive scientific conceptions about nonobservable entities). © 2000 John Wiley & Sons, Inc. J Res Sci Teach 37: 44–62, 2000 相似文献