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1.
This study aims to identify an adequate approach for revealing conceptual understanding in higher professional education. Revealing students’ conceptual understanding is an important step towards developing effective curricula, assessment and aligned teaching strategies to enhance conceptual understanding in higher education. Essays and concept maps were used to determine how students’ conceptual understanding of international business can be revealed adequately. To this end, 132 international business students in higher professional education were randomly assigned to four conditions to write essays and to construct concept maps about an international business research topic. The conditions were: essay alone, essay after concept map, concept map alone, and concept map after essay. An assessment rubric was used to assess the breadth and depth of students’ conceptual understanding. Results show essays are the most adequate approach for revealing conceptual understanding of international business. In particular, concept maps revealed fewer facts and less reasoning than essays. Essays written after concept maps were less effective than essays, possibly since students perceived these essays as redundant. Further research is suggested on how educators can foster conceptual understanding.  相似文献   

2.
With the help of Pascual-Leone's Theory of Constructive Operators, this study investigated the hypothesis that understanding of the long division algorithm requires a high cognitive level, or greater m-capacity, than does understanding of the fundamental concepts of division. Formal and preformal sixth grade students were tested on performance and understanding of a given division algorithm and division concepts.  相似文献   

3.
In recent years there have been many studies on learners developing conceptions of natural phenomena. However, so far there have been few attempts to investigate how the characteristics of the learners and their environment influence such conceptions. This study began with an attempt to use an instrument developed by McCarthy (1981) to describe learners in Malaysian primary schools. This proved inappropriate as Asian primary classrooms do not provide the same kind of environment as US classrooms. It was decided to develop a learning style checklist to suit the local context and which could be used to describe differences between learners which teachers could appreciate and use. The checklist included four dimensions — perceptual, process, self-confidence and motivation. The validated instrument was used to determine the learning style preferences of primary four pupils in Penang, Malaysia. Later, an analysis was made regarding the influence of learning environment and learning styles on conceptual understanding in the topics of food, respiration and excretion. This study was replicated in the Philippines with the purpose of investigating the relationship between learning styles and achievement in science, where the topics of food, respiration and excretion have been taken up. A number of significant relationships were observed in these two studies. Specializations: science education, primary science, educational research and measurement, educational management.  相似文献   

4.
This study explores the relationship between affective and cognitive variables in grade 9 chemistry students (n = 73). In particular, it explores how students' situational interest, their attitudes toward chemistry, and their chemistry‐specific self‐concept influence their understanding of chemistry concepts over the course of a school year. All affective variables were assessed at two time points: at the middle of the first semester of grade 9, and at the end of the second semester of grade 9, and then related to students' postinstructional understanding of chemical concepts. Results reveal that none of the affective variables measured at the earliest time point have a significant direct effect on postinstructional conceptual understanding. Looking at the different affective variables as intermediary constructs, however, reveals a pattern in which self‐concept and situational interest measured at the middle of grade 9 contribute to self‐concept measured at the end of grade 9, which in turn, has a positive, significant effect on students' postinstructional conceptual understanding. These results reveal the importance of a strong and positive self‐concept, the feeling of doing well in the chemistry class, for developing a meaningful understanding of scientific concepts. © 2006 Wiley Periodicals, Inc. J Res Sci Teach 44: 908–937, 2007  相似文献   

5.
Concept maps as reflectors of conceptual understanding   总被引:1,自引:0,他引:1  
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6.
In this article (Journal of Research in Science Teaching 2007;44(7):908–937. DOI 10.1002/tea.20169 © 2007 Wiley Periodicals, Inc.), part of the author's affiliation had been inadvertently omitted. The corrected affiliation appears above. For the reader's information, the acronym “OISE/UT” stands for “Ontario Institute for Studies in Education of the University of Toronto.” The author regrets any inconvenience this may have caused.  相似文献   

7.
This study examined prospective teachers’ (PSTs) ability to recognize evidence of children’s conceptual understanding of mathematics in three content areas before and after an instructional intervention designed to support this ability. It also investigates the role PSTs’ content knowledge plays in their ability to recognize children’s mathematical understanding. Results of content knowledge assessments administered at the beginning of the study revealed that content knowledge did seem to support PSTs’ analyses of children’s understanding when the child’s response demonstrated understanding or demonstrated a misconception. Content knowledge did not seem to support PSTs’ analyses of children’s procedural responses, as many PSTs with good content knowledge initially characterized procedural solutions as evidence of conceptual understanding. Similarly, content knowledge did not seem to support PSTs’ analyses of children’s responses with features commonly associated with understanding but not evidence of understanding. After the instructional intervention consisting of three multifaceted lessons in which PSTs examined many examples of student thinking, they showed improved ability to analyze responses with conceptual features and no evidence of conceptual understanding and responses demonstrating procedural knowledge. Results suggest that content knowledge is not sufficient for supporting PSTs’ analysis of children’s thinking, and that building activities such as the intervention into content courses may help develop this ability. Implications for teacher education programs and future research are considered.  相似文献   

8.
The purpose of this study was to examine the ways in which elementary teachers applied their understanding of conceptual learning and teaching to their instructional practices as they became knowledgeable about conceptual change pedagogy. Teachers' various ways to interpret and utilize students' prior ideas were analyzed in both epistemological and ontological dimensions of learning. A total of 14 in‐service elementary teachers conducted an 8‐week‐long inquiry into students' conceptual learning as a professional development course project. Major data sources included the teachers' reports on their students' prior ideas, lesson plans with justifications, student performance artifacts, video‐recorded teaching episodes, and final reports on their analyses of student learning. The findings demonstrated three epistemologically distinct ways the teachers interpreted and utilized students' prior ideas. These supported Kinchin's epistemological categories of perspectives on teaching including positivist, misconceptions, and systems views. On the basis of Chi's and Thagard's theories of conceptual change, the teachers' ontological understanding of conceptual learning was differentiated in two ways. Some teachers taught a unit to change the ontological nature of student ideas, whereas the others taught a unit within the same ontological categories of student ideas. The findings about teachers' various ways of utilizing students' prior ideas in their instructional practices suggested a number of topics to be addressed in science teacher education such as methods of utilizing students' cognitive resources, strategies for purposeful use of counter‐evidence, and understanding of ontological demands of learning. Future research questions were suggested. © 2007 Wiley Periodicals, Inc. J Res Sci Teach 44: 1292–1317, 2007  相似文献   

9.
Numerous computer‐mediated communication (CMC) tools have been designed to facilitate group discourses on the Web. However, previous studies noted that participants did not value online conferencing as a method for conducting in‐depth discussions, and instead considered this method as merely scratching the surface of the issues involved. Therefore, the teachers must moderate the online discourse to add value to the success of CMC. This study presents a methodology that uses knowledge acquisition techniques during online discourses to increase student conceptual understanding and evaluation skills. The methodology explains the conceptual frameworks of individuals and the conceptual relationships between student peers. Active database triggers then are applied to automatically monitor the conceptual relationships and to moderate online discourses between student peers. Student reactions demonstrated that discourses mediated by the repertory grid analysis technique helped group members not only promote common conceptual understandings but also to approach the level of conceptual understanding of the teacher.  相似文献   

10.
In statistics, and in everyday life as well, the arithmetic mean is a frequently used average. The present study reports data from interviews in which students attempted to solve problems involving the appropriate weighting and combining of means into an overall mean. While mathematically unsophisticated college students can easily compute the mean of a group of numbers, our results indicate that a surprisingly large proportion of them do not understand the concept of the weighted mean. When asked to calculate the overall mean, most subjects answered with the simple, or unweighted, mean of the two means given in the problem, even though these two means were from different-sized groups of scores. For many subjects, computing the simple mean was not merely the easiest or most obvious way to initially attack the problem; it was the only method they had available. Most did not seem to consider why the simple mean might or might not be the correct response, nor did they have any feeling for what their results represented. For many students, dealing with the mean is a computational rather than a conceptual act. Knowledge of the mean seems to begin and end with an impoverished computational formula. The pedagogical message is clear: Learning a computational formula is a poor substitute for gaining an understanding of the basic underlying concept.Research support: Research reported in this paper was supported by NSF research award No. SED78-22043 in the Joint National Institute of Education-National Science Foundation Program of Research on Cognitive Processes and the Structure of Knowledge in Science and Mathematics.  相似文献   

11.
The authors of this quantitative study measured and compared the academic language development and conceptual understanding of fifth-grade economically disadvantaged English language learners (ELL), former ELLs, and native English-speaking (ES) students as reflected in their science notebook scores. Using an instrument they developed, the authors quantified the student notebook language and concept scores. They compared language growth over time across three time points: beginning, middle, and end of the school year and across language-status (ELL, former ELL, and ES), and gender using mixed between-within subjects analysis of variance (ANOVA). The authors also compared students’ conceptual understanding scores across categories in three domains using ANOVA. Students demonstrated statistically significant growth over time in their academic language as reflected by science notebook scores, and we noticed conceptual trends in which scores for ELLs, former ELLs, and male students lagged behind at first, but caught up to their peers by the end of the school year.  相似文献   

12.
This study investigated the effects of different teaching and learning methods for statistics for 2 levels of prior knowledge on cognitive load, propositional knowledge, and conceptual understanding. Teaching methods were whether or not to provide students with propositional information, and learning strategies were self-explaining the learning material and explaining in pairs. The results indicate that prior knowledge facilitates propositional knowledge development and leads to differential effects of teaching and learning methods on conceptual understanding: Only low prior knowledge students profit from additional information in the learning task and/or explaining in pairs. An implication of these findings is that low prior knowledge students should be guided into the subject matter by means of working in pairs on learning tasks that comprise additional information. Once students have developed more knowledge of the subject matter, they should be stimulated to work individually on learning tasks that do not comprise additional information.  相似文献   

13.
In this review essay I respond to issues raised in Mijung Kim and Wolff-Michael Roth’s paper titled “Dialogical argumentation in elementary science classrooms”, which presents a study dealing with dialogical argumentation in early elementary school classrooms. Since there is very limited research on lower primary school students’ argumentation in school science, their paper makes a contribution to research on children’s argumentation skills. In this response, I focus on two main issues to extend the discussion in Kim and Roth’s paper: (a) methodological issues including conducting a quantitative study on children’s argumentation levels and focusing on children’s written argumentation in addition to their dialogical argumentation, and (b) investigating children’s conceptual understanding along with their argumentation levels. Kim and Roth emphasize the difficulty in determining the level of children’s argumentation through the Toulmin’s Argument Pattern and lack of high level arguments by children due to their difficulties in writing texts. Regarding these methodological issues, I suggest designing quantitative research on coding children’s argument levels because such research could potentially provide important findings on children’s argumentation. Furthermore, I discuss alternative written products including posters, figures, or pictures generated by children in order to trace children’s arguments, and finally articulating argumentation and conceptual understanding of children.  相似文献   

14.
Important goals in science education include the elucidation of how students develop a world view, reason about new information, and solve problems. This paper focuses on a research strategy using microcomputers that is directed towards elucidating conceptual understanding and problem solving strategies used by subjects interacting with an open-ended genetics simulation. The field method employed in this study is termed “structured observations”. The use of this method facilitated the generation of data during problem solving sessions by subjects in a think aloud protocol. Three sets of synchronized information of subjects’ interactions with the software were obtained: a video image which provided the sequence and duration of computer screen displays, a video image of subjects, and an audio track of verbal commentaries. The verbal protocol data, complemented by synchronized visual data, were analyzed using software tools for qualitative analysis. The use of these kinds of software programs aided researchers in the analysis of complex, qualitative data. The data were subjected to codings as text files, searches for patterns, and retrievals of patterns among coded variables. Frequency tables of the codes and patterns were generated for further interpretation. By these means, patterns of operations can be identified and inferences made about problem solvers’ conceptual understanding. Specializations: computer-based problem solving secondary teacher education. Specializations: computer-based problem solving, software design and development.  相似文献   

15.
“Complex systems” is a general-purpose reasoning scheme, used in a wide range of disciplines to make sense of systems with many similar entities. In this paper, we examine the generality of this approach in learning chemistry. Students' reasoning in chemistry in terms of emergent complex systems is explored for two curricula: a normative and a complexity-based one, so that the interaction could be examined under both the conditions. A quasi-experimental pretest-intervention-posttest comparison group design was used to explore student's learning, complemented with interview data. The experimental group (n = 47) studied the topic of gases with a complexity-based curriculum. A comparison group (n = 45) studied with a normative curriculum for the same duration. Students' answers to questionnaires were coded with a complexity-based approach that included levels (distinguishing micro- and macro-levels), stochastic particle behaviors, the emergence of macro-level patterns from micro-level behaviors, and the source of control in the system. It was found that students' reasoning about chemistry concepts in terms of complex systems falls into three distinct and coherent mental models. A sophisticated mental model included most of the above-described complexity features, while the nonsophisticated model included none. The intermediate model is typified by distinguishing between levels, but not by stochastic and emergent behaviors. The nonsophisticated mental model was used mostly in the pretest. In the posttest, the experimental group used the intermediate and sophisticated models; while the comparison group used the nonsophisticated and intermediate models. Discussion approaches the topics of the generality of the complex systems approach; and the unique forms of reasoning that a complexity approach may contribute to learning science.  相似文献   

16.
This study investigated the differential effects of two modes of instructional program (conceptual change oriented and traditionally designed) and gender difference on students' understanding of heat and temperature concepts, and their attitudes toward science as a school subject. The subjects of this study consisted of 72 seventh grade students from two General Science Classes taking the course from the same teacher. Each teaching method was randomly assigned to one class. The experimental group received reinforcement via the conceptual change texts while the control group utilized traditionally designed science texts over a period of four weeks. Analysis of covariance was used. Logical thinking ability was taken as a covariate. The results showed that the conceptual change oriented instruction produced significantly greater achievement in understanding of heat and temperature concepts. The result for science attitudes as a school subject showed no significant difference between the experimental and control groups. Also, no significant difference was found between the performance of females and that of males in terms of learning heat and temperature concepts and attitudes toward science, but the interaction of treatment regarding to gender was significant for learning the concepts. In addition, it was found that students' logical thinking ability accounted for a significant portion of variation in heat and temperature concepts achievement.  相似文献   

17.
The study was conducted to explore performance on a variety of mental computation tasks using two presentation formats (visual and oral). Students at four grade levels between grades 2 and 9 in three countries (Australia, Japan, United States) were given a group administered mental computation test consisting of two parts (oral presentation format, visual presentation format).The sample of nearly 2000 students represents 6 classes at each of four grade levels in each country. Results indicate a wide variation in performance within the sample of each country at each grade level. Differences in performance between countries are also apparent and may reflect variations in instructional focus on mental computation. In particular, Japanese students perform at a higher level at the early grades than do students in either of the other countries sampled. However, by grade 8 this difference narrows in the American sample, and vanishes for the Australian sample. Differences in performance related to presentation format were dramatic for particular items and non-existent for other items. The most consistent effect was found in the Japanese sample where the visual presentation format resulted in higher performance levels on most items.It is hypothesised that superior results on visually presented items are attributable to a greater reliance on use of the standard written algorithm, while superior results on orally presented items indicate a greater tendency to use invented mental algorithms.  相似文献   

18.
Technologies such as the Internet and World Wide Web are changing our conceptions of information systems, from who uses them and how they are used, to how the systems are created and who is doing the creating. Everyday users are afforded the same information retrieval opportunities as information scientists or librarians by using emerging information systems such as the Web. Yet, defining best practices for assisting users in finding the information they seek remains an unrealized goal. Discovering how users engage in information retrieval and strategy building while searching for information in open-ended systems such as the Web is an area in need of exploration if these systems are to fulfill their potential as tools for information seeking and learning. This paper describes a theoretically and empirically based framework for how users formulate and employ information-seeking strategies in open-ended information systems (OEISs). Background information and challenges related to OEISs are provided. OEIS theoretical and user perspectives are described. An example based on a recent research study is provided to illustrate use of the OEIS information-seeking framework. Implications for practice and research are offered.  相似文献   

19.
Museum visitors are an ideal population for assessing the persistence of the conceptual barriers that make it difficult to grasp Darwinian evolutionary theory. In comparison with other members of the public, they are more likely to be interested in natural history, have higher education levels, and be exposed to the relevant content. If museum visitors do not grasp evolutionary principles, it seems unlikely that other members of the general public would do so. In the current study, 32 systematically selected visitors to three Midwest museums of natural history provided detailed open‐ended explanations of biological change in seven diverse organisms. They were not told that these were evolutionary problems. Responses were coded as: informed naturalistic reasoning, featuring some understanding of key evolutionary concepts, novice naturalistic reasoning, featuring intuitive explanations that are also present in childhood, and creationist reasoning, featuring supernatural explanations. All visitors were mixed reasoners, using one or more of these patterns in different permutations across the seven organisms: 72% used a combination of informed naturalistic reasoning and novice naturalistic reasoning, while a further 28% added creationist reasoning to this mix. Correlational analyses indicated that for many visitors these reasoning patterns were coherent rather than fragmented. The theoretical model presented in this article contributes to an analysis of the developmental and cultural factors associated with these patterns. This could help educators working in diverse educational settings understand how to move visitors and students toward more informed reasoning patterns. © 2009 Wiley Periodicals, Inc. J Res Sci Teach 47:326–353, 2010  相似文献   

20.
A particular difficulty in physics learning is the fact that pupils’ “intuitive” concepts are often resistant to instruction. This article reports empirical results from two related studies within an interdisciplinary project of physics education and educational psychology in ray optics. Two different kinds of treatment groups (TG A and TG B), both targeted at widespread pupils’ intuitive concepts (N?=?511), were compared with the results of a control group (CG C) learning with conventional tasks (N?=?218) provided by a related study II. Pupils in TG A) of study I worked on cognitively activating tasks related to widespread intuitive concepts in ray optics explicitly requiring them to deal with multiple representations. Pupils in the TG B) of study I worked on the same intuitive concepts, but without the cognitively activating representational component. TG A) and B) were compared with each other and with CG C) learning with conventional tasks. The results indicated that tasks addressing widespread intuitive pupils’ concepts improved conceptual understanding significantly more than conventional tasks. There was evidence of a significant intermediate effect showing medium-term stability.  相似文献   

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