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1.
Forty-seven fifth grade students (40 group-tested and 7 individually interviewed) read a text describing plate tectonics. At four points they drew diagrams of the spatial, causal, and dynamic processes inside the earth. These diagrams along with students' corresponding explanations, think-aloud protocols (for those individually interviewed), and answers to inference questions were analysed in order to characterize students' models of the interior of the earth, and models of its causal and dynamic processes. Types and characteristics of models, and reasoning associated with them are presented. Additionally, data from two exemplary students are presented as case studies. One student has considerable misunderstandings regarding both her understanding of the spatial layout of the interior of the earth and its causal mechanisms. The second student is more typical in terms of his initial models, but makes large gains in revising his understanding about the causal and dynamic processes inside the earth. In both cases, data are used to infer how each student used their diagrams as artefacts for externalizing knowledge, inference making, and model-revision.  相似文献   

2.
Many teachers struggle to provide equitable opportunities for students with special educational needs (SEN) to learn science concepts in the inclusive classroom. This study examines the experience of teaching in an inclusive classroom using a conceptual change approach, the Thinking Frames Approach (TFA), incorporating the use of discrepant events, social construction of scientific conceptions followed by the production of multiple student‐generated representations of their understanding. An in‐depth case study is presented of the experience of Wayne, a student with complex SEN and the effect on his behaviour and science learning based on video/audio recordings of lessons, teacher journal entries, student artefacts, questionnaire results and interviews. It was found that there were positive effects for Wayne's learning using this approach including improved behaviour, greater feelings of self‐efficacy, increased participation in small group and class discussions and improved outcomes on the same assessment tasks as peers. It is suggested that the structured approach of the TFA, the communication of understanding in different modalities, particularly drawing, and the support of peers enabled Wayne to more deeply engage in construction of understanding and may provide teachers with an easy and effective approach to authentic inclusion where real conceptual gains are made by all students.  相似文献   

3.
Cognitive theory suggests that a key to expert performance lies in the internal organization of the expert's knowledge. The authors contend that the type of technical illustration used during instruction influences knowledge organization and greatly impacts students' understanding of the content. This paper describes an experimental study that tested the impact of one type of conceptual illustration on students' understanding of the structure, function, and behavior of complex technical systems. The results show that supplementing traditional technical instruction with functional flow diagrams can improve overall system understanding. The functional flow diagrams were also found to be an effective instructional aid for enhancing students' conceptual understanding of the causal behavior of systems. In addition, the use of the functional flow diagram was found to significantly improve the subjects' ability to construct conceptual models that were similar to those of an expert. The implications of using conceptual diagrams for technical instruction are discussed and recommendations for future research in this area are provided.  相似文献   

4.
Teachers' anxiety about an academic domain, such as math, can impact students' learning in that domain. We asked whether this relation held in the domain of spatial skill, given the importance of spatial skill for success in math and science and its malleability at a young age. We measured 1st‐ and 2nd‐grade teachers' spatial anxiety (N = 19) and students' spatial skill (N = 132). Teachers' spatial anxiety significantly predicted students' end‐of‐year spatial skill, even after accounting for students' beginning‐of‐year spatial skill, phonological working memory, grade level, and teachers' math anxiety. Since spatial skill is not a stand‐alone part of the curriculum like math or reading, teachers with high levels of spatial anxiety may simply avoid incorporating spatial activities in the classroom. Results suggest that addressing teachers' spatial anxieties may improve spatial learning in early elementary school.  相似文献   

5.
This study investigated the effects of online drill‐and‐practice activities using student‐generated questions on academic performance and motivation as compared with online drill‐and‐practice using teacher‐generated questions and no drill‐and‐practice in a student question‐generation (SQG) learning context. A quasi‐experimental research method was adopted for the purposes of this study. Six fifth‐grade classes (n = 145) participated in a weekly online activity for 5 weeks. Analysis of covariance results showed significant differences among the different treatment groups with regard to both academic performance and motivation. Post hoc comparisons using simultaneous confidence intervals, however, did not demonstrate the use of online SQG combined with answering peer‐generated questions to be more conducive to learning with regard to any of the observed variables as compared with the use of online SQG combined with answering teacher‐generated questions. Furthermore, answering student‐generated questions in addition to online SQG did not lead to added gains in learning as compared with the online SQG‐alone group. Some reasons for the unexpected findings are proposed, and the significance of this study, as well as suggestions for instructional implementations and future research, are provided.  相似文献   

6.
The process of students' conceptual change was investigated during a computer‐supported physics unit in a Grade 10 science class. Computer simulation programs were developed to confront students' alternative conceptions in mechanics. A conceptual test was administered as a pre‐, post‐, and delayed posttest to determine students' conceptual change. Students worked collaboratively in pairs on the programs carrying out predict–observe–explain tasks according to worksheets. While the pairs worked on the tasks, their conversational interactions were recorded. A range of other data was collected at various junctures during instruction. At each juncture, the data for each of 12 students were analyzed to provide a conceptual snapshot at that juncture. All the conceptual snapshots together provided a delineation of the students' conceptual development. It was found that many students vacillated between alternative and scientific conceptions from one context to another during instruction, i.e., their conceptual change was context dependent and unstable. The few students who achieved context independent and stable conceptual change appeared to be able to perceive the commonalities and accept the generality of scientific conceptions across contexts. These findings led to a pattern of conceptual change which has implications for instructional practices. The article concludes with consequent implications for classsrooms. © 1999 John Wiley & Sons, Inc. J Res Sci Teach 36: 859–882, 1999  相似文献   

7.
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   

8.
ABSTRACT

Context-based learning (CBL), promoting students' scientific text comprehension, and fostering metacognitive skills, plays an important role in science education. Our study involves CBL through comprehension and analysis of adapted scientific articles. We developed a module which integrates metacognitive prompts for guiding students to monitor their understanding and improve their scientific text comprehension. We investigated the effect of these metacognitive prompts on scientific text comprehension as part of CBL in chemistry. About 670 high school chemistry students were randomly divided into three groups exposed to high- and low-intensity CBL. One of the high-intensity groups was also exposed to metacognitive prompts. Research tools included pre- and post-questionnaires aimed at measuring students' conceptual chemistry understanding and metacognitive knowledge in the context of reading strategies, before and after exposure to the CBL. Chemistry understanding was reflected by students' ability to identify the main subject of the adapted article and by explaining concepts both textually and visually. We found that high-intensity CBL combined with metacognitive prompts improved students' chemistry understanding of the adapted scientific articles and the ability to regulate their learning. Our study establishes that reading context-based adapted scientific articles advances students' conceptual chemistry understanding. These gains are strongly amplified by domain-specific metacognitive prompts.  相似文献   

9.
Reading fluency has been described as one of the essential ingredients for ensuring that students become successful readers. Unfortunately, a large number of elementary‐aged students in this country do not fluently read age‐appropriate material. Because of this, small‐group interventions are practical and more time efficient than individualized intervention programs, but very few small‐group interventions have been developed to target students' reading fluency of connected text. The primary purpose of this study was to examine four group‐based treatment packages containing two or more of the following reading interventions: repeated reading, listening passage preview, and practicing difficult words in isolation. Effects of each treatment package were evaluated with 4 third graders using an alternating‐treatments design, and effects were evaluated for both immediate and retained reading‐fluency gains. Findings indicated that the combination of all three intervention components was most effective. Results also suggested some inconsistent relationships between immediate and retained reading gains for 3 of the 4 students. Implications of these findings, limitations of the study, and directions for future research are discussed. © 2006 Wiley Periodicals, Inc. Psychol Schs 43: 183–195, 2006.  相似文献   

10.
Although much is known about beginning readers using behavioural measures, real‐time processes are still less clear. The present study examined eye movements (skipping rate, gaze, look back and second‐pass duration) as a function of text‐related (difficulty and word class) and student‐related characteristics (word decoding, reading comprehension, short term and working memory). Twenty‐four third and 20 fifth graders read a relatively easy (below grade level) and more difficult text (at grade level). The results showed that skipping rate mainly relied on text characteristics and a three‐way interaction of grade, text difficulty and word class. Gaze durations depended mostly on student characteristics. Results on look backs showed more and longer look backs in difficult texts. Finally, second‐pass duration mostly relied on grade level. To conclude, this study shows that both student and text characteristics should be taken into account when studying online text reading development.  相似文献   

11.
This study examines the relationship between types and sequences of self‐regulated reading activities in task‐oriented reading with quality of task achievement of 51 low‐achieving adolescents (Grade 8). The study used think aloud combined with video observations to analyse the students' approach of a content‐area reading task in the stages of orientation, text reading and answering questions. Results show that in general these low‐achieving adolescents are infrequently monitoring their text comprehension or making connections with prior knowledge. Nevertheless, important differences are found between types and sequences of self‐regulated reading activities related to task achievement. The low‐achieving adolescents showing a straightforward linear approach to the task (orientation, reading of the whole text and finally answering of questions) yielded more success. In addition, readers demonstrating more activities directed at connections between text contents and prior knowledge during reading showed better task achievement. Implications of these findings for literacy education of this special group of adolescents are discussed.  相似文献   

12.
We probed the impact of two teaching strategies, guided inquiry and argumentation, on students' conceptual understanding of the conservation of matter. Conservation of matter is a central concept in middle school science curriculum and a prerequisite upon which rests more complex constructs in chemistry. The results indicate that guided inquiry was particularly effective in improving students' conceptual understanding, as evidenced by pre/posttest results and by a skill analysis of in-depth interviews of student dyads. We also discuss how the challenges inherent to educational contexts can undermine the quality and limit the impact of empirical research carried out in many schools. We suggest how these challenges could be met in the emerging infrastructures for change called the Research Schools Network.  相似文献   

13.
This study investigated differences between two types of reading probe material to monitor students' oral reading fluency over time. Thirty‐six second‐grade students participated in this study. Twice each week for 5 weeks, participants read two passages from each of two sources. One source was the curriculum in which the child was being instructed at school, and the second source was the “Tests of Reading Fluency,” a set of generic (curriculum‐independent) passages. Standardized curriculum‐based measurement administration and scoring procedures were used. Level and rate of improvement (slope) of oral reading fluency were the dependent measures. Level and slope data were analyzed using two, two‐tailed t‐tests. Also, readability of passages was calculated using two readability formulas. Correlational analyses were used to examine the relation between the readability and reading fluency. Correlations among readability and words read correct were not significant. Results of the analyses examining level and slope indicated that students read significantly more words correct in the generic reading passages than in the curriculum‐based passages. However, rate of progress was not significantly different. These results suggest that practitioners could use either set of passages to gauge students' reading progress over time. Implications for future research and practice are discussed. © 2001 John Wiley & Sons, Inc.  相似文献   

14.
This article explores the place of the class novel within the current primary curriculum. It begins with an overview of past and current thinking about reading aloud to older primary‐age children. The discussion then moves on to describing research carried out with 43 primary postgraduate student teachers, which aimed to investigate the students' school experiences of observing reading aloud and working on whole narrative texts. Lastly, the article focuses on how the findings influenced changes made to a postgraduate primary course in order to support and develop students' understanding of the role that reading aloud plays in developing children's critical understanding of story.  相似文献   

15.
Poorer adolescent readers are often regarded by teachers as unable to read whole narratives and given short, simplified texts, yet are expected to analyse every part in a slow laborious read‐through. This article reports on a mixed methods study in which 20 English teachers in the South of England changed their current practice to read two whole challenging novels at a faster pace than usual in 12 weeks with their average and poorer readers ages 12–13. Ten teachers received additional training in teaching comprehension. Students in both groups made 8.5 months' mean progress on standardised tests of reading comprehension, but the poorer readers made a surprising 16 months progress but with no difference made by the training programme. Simply reading challenging, complex novels aloud and at a fast pace in each lesson repositioned ‘poorer readers’ as ‘good’ readers, giving them a more engaged uninterrupted reading experience over a sustained period. However, the qualitative data showed that teachers with the additional training provided a more coherent faster read and better supported poorer readers by explicitly teaching inference, diagnosed students' ‘sticking places’ mid‐text and created socially cohesive guided reading groups that further supported weaker readers and also stretched the average/good readers.  相似文献   

16.
Learning using primary literature may be a way of developing a capacity for scientific ways of thinking among students. Since reading research articles is a difficult task for novices, we examined the possible benefits of learning using primary literature versus secondary literature, particularly with respect to their influence on the creation and formation of scientific literacy. We report on a comparison between four groups of high school students, each with differing degrees of prior knowledge in biology, who read a domain‐related text written in either the scientific research article genre (adapted primary literature) or the popular‐scientific genre (secondary literature). Although there was no significant difference in the students' ability to summarize the main ideas of each text, indicating that there was no eminent distinction in their content, we found that students who read adapted primary literature demonstrated better inquiry skills, whereas secondary literature readers comprehended the text better and demonstrated less negative attitudes toward the reading task. Since the scientific content of the two texts was essentially identical, we suggest that the differences in students' performances stem from the structure of the text, dictated by its genre. © 2005 Wiley Periodicals, Inc. J Res Sci Teach 42: 403–428, 2005  相似文献   

17.
Teachers' failure to use the microcomputer‐based laboratory (MBL) more widely may be a result of not recognizing its capacity to transform laboratory activities. This research aimed to increase understanding of how MBL activities designed to be consistent with a constructivist theory of learning support or constrain student construction of understanding. The first author conducted the research with his Year 11 physics class of 15 students. Dyads addressed 10 tasks in thermal physics using a predict–observe–explain format. Data sources included video and audio recordings of students and teacher during four 70‐minute sessions, students' computer data and written notes, semistructured student interviews, and the teacher's journal. Analysis of students' discourse identified many instances in which students' initial understandings of thermal physics were mediated in multiple ways by the screen display. The findings are presented as eight assertions. Recommendations are made for developing pedagogical strategies incorporating MBL activities that will likely catalyze student construction of understanding. © 2004 Wiley Periodicals, Inc. J Res Sci Teach 41: 165–185, 2004  相似文献   

18.
The purpose of this study was to investigate the relationship between different text‐leveling systems and reading accuracy and fluency in second‐grade students with and without decoding difficulties. Two‐hundred‐forty‐eight second‐grade students, 44 identified as low achieving (LA) and 204 identified as average achieving (AA) in decoding skill, participated in the 15‐week study. During the study teachers collected data weekly on students' text‐reading accuracy and fluency using curriculum‐based measurement (CBM) techniques. Text attributes such as readability, decodability, percentage of high frequency words, average words per sentence, and percentage of multisyllabic words were estimated for each passage. Results using the entire sample of children indicated that accuracy of text reading was uniquely predicted by the percentage of high frequency words in the passages, whereas both the percentage of high frequency words and passage decodability made unique contributions to variance in passage‐reading fluency. Moreover, results suggested that the relationship between text‐leveling variables and reading performance was similar in the LA and AA groups, with only a slight trend favoring a stronger relationship between passage decodability and measures of text‐reading performance in the AA group compared to the LA group.  相似文献   

19.
We investigated the online and offline effects of learner and instructional characteristics on conceptual change of a robust misconception in science. Fifty‐nine undergraduate university students with misconceptions about evolution were identified as espousing evaluativist or non‐evaluativist epistemic beliefs in science. Participants were randomly assigned to receive a traditional or refutational text that discussed a misconception in evolution and a general comprehension or elaborative interrogation reading goal. Participants' cognitive and metacognitive processes while reading were measured using a think‐aloud protocol. Postreading, participants' correct and incorrect conceptual knowledge were separately assessed with a transference essay. Results showed that text structure and reading goals affected cognitive conflict, coherence‐building and elaborative processing while reading and promoted correct conceptual knowledge included in essays but failed to affect the inclusion of misconceptions. Further, participants with evaluativist epistemic beliefs engaged in fewer comprehension monitoring processes and were more likely to adapt their coherence‐building processes according to reading goals than their non‐evaluativist counterparts, but epistemic belief groups did not differ in the content of the posttest essay. Theoretical and educational implications of these findings are discussed.  相似文献   

20.
The literature provides confounding information with regard to questions about whether students in high school can engage in meaningful argumentation about socio‐scientific issues and whether this process improves their conceptual understanding of science. The purpose of this research was to explore the impact of classroom‐based argumentation on high school students' argumentation skills, informal reasoning, and conceptual understanding of genetics. The research was conducted as a case study in one school with an embedded quasi‐experimental design with two Grade 10 classes (n = 46) forming the argumentation group and two Grade 10 classes (n = 46) forming the comparison group. The teacher of the argumentation group participated in professional learning and explicitly taught argumentation skills to the students in his classes during one, 50‐minute lesson and involved them in whole‐class argumentation about socio‐scientific issues in a further two lessons. Data were generated through a detailed, written pre‐ and post‐instruction student survey. The findings showed that the argumentation group, but not the comparison group, improved significantly in the complexity and quality of their arguments and gave more explanations showing rational informal reasoning. Both groups improved significantly in their genetics understanding, but the improvement of the argumentation group was significantly better than the comparison group. The importance of the findings are that after only a short intervention of three lessons, improvements in the structure and complexity of students' arguments, the degree of rational informal reasoning, and students' conceptual understanding of science can occur. © 2010 Wiley Periodicals, Inc. J Res Sci Teach 47: 952–977, 2010  相似文献   

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