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Science & Education - This article reports on the theoretical output of a design research study, which concerns the design of a learning environment (LE) for helping students challenge the... 相似文献
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Georgios Tsitsipis Dimitrios Stamovlasis George Papageorgiou 《International Journal of Science and Mathematics Education》2012,10(4):777-802
In this study, the effect of 3 cognitive variables such as logical thinking, field dependence/field independence, and convergent/divergent thinking on some specific students’ answers related to the particulate nature of matter was investigated by means of probabilistic models. Besides recording and tabulating the students’ responses, a combination of binomial and multinomial logistic regression techniques was used to analyze the data. Thus, students’ misconceptions as well as the compatible-with-the-scientific-view student’s answers were explored one by one in relation to the above 3 cognitive variables. The study took place with the participation of 329 ninth-grade junior high school pupils (aged 14–15). The results showed that mostly logical thinking and sporadically the other 2 cognitive variables were significantly associated with students’ answers. Interpretation of the results and implications for science education are discussed. 相似文献
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Fassoulopoulos Georgios Kariotoglou Petros Koumaras Panagiotis 《Research in Science Education》2003,33(1):71-87
In this research we investigate whether the categorisation of physical quantities into intensive and extensive, according to scientific knowledge, is perceivable and understood by pupils aged 12–15 years. For this purpose we administered written questionnaires to 300 pupils, comprising four tasks for each intensive quantity: density and pressure. The tasks investigate whether pupils realise that intensive quantities do not depend on the amount of the system they refer to and the factors affecting pupils' reasoning and their consistency when studying phenomena involving fluids at rest or in transition. The analysis of responses led us to identify three models of consistent pupils' reasoning. It was also observed that a significant percentage of the pupils provide inconsistent answers, that is, they change their reasoning across tasks and use alternatives to scientific reasoning, influenced by phenomenological features of the tasks. According to our results we propose a number of recommendations, such as the introduction of intermediate teaching/learning steps to be followed as well as suitable experiments to be used towards the acquisition of the scientific model for density and pressure. 相似文献
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Magda Nikolaraizi Poonam Kumar Paddy Favazza Georgios Sideridis Dafni Koulousiou Ann Riall 《International Journal of Disability, Development & Education》2005,52(2):101-119
This study explores children's attitudes toward individuals with special needs in Greece and in the United States. A total of 196 kindergarten‐age children participated in the study. Children's attitudes were examined using the Acceptance Scale for Kindergartners‐Revised (ASK‐R) and were further explored with the use of an open‐ended interview. In addition, the Inventory of Disability Representation (IDR) was used to collect information about how individuals with special needs are represented in school and classroom environments through books, displays, materials and curriculum. The results indicated that children in Greece and the United States were accepting of individuals with special needs. Also, children attending inclusive kindergartens held more positive attitudes when compared with children attending non‐inclusive kindergartens. Results from the interviews provided further information that contributes to the understanding of children's perceptions of people with special needs and the reasons why children become more or less favourably disposed towards individuals with special needs. Finally, IDR results indicated that the classrooms in Greece had low representations of individuals with special needs compared with US classrooms, which had moderate and high representations of individuals with disabilities in the classroom and school environments. 相似文献
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Vassilios Dagdilelis Maya Satratzemi Georgios Evangelidis 《Education and Information Technologies》2004,9(2):159-173
In Greece, the development of the teaching of Information Technology (IT) in schools has been greatly influenced by the rapid development of technology, making IT literacy a priority for all individuals. Consequently, the teaching of algorithms and programming, with the ulterior motive of teaching modeling as well as problem solving, has been greatly limited in Secondary Education. However, we strongly believe that algorithms and programming constitute an important intellectual tool and should be included in basic education. In any case, both the research literature findings, as well as, our own experience confirm the fact that novice programmers come up against many mental obstacles in their attempts to understand the functioning of programs or the construction of algorithms. In order to deal with these difficulties and successfully teach the elementary concepts of algorithms and programming, we have developed didactic scenarios, which are based on specially designed educational software. In conjunction with this, we are attempting to develop a program for the systematic training of those students who will become IT teachers in Secondary or Primary Education. The most significant findings of our research are summarized as follows: (a) The development of educational software and its experimental use in the teaching process allow us to formulate several general rules related to the specific didactic characteristics, which these environments should include. (b) Educational software is effective only when it is incorporated within the framework of the didactic scenarios that the teacher organizes and which are supported by the software. (c) Teachers do not spontaneously use educational software in the context of this rationale. Therefore, specific training is required so that they adopt and use such software in didactic scenarios. 相似文献
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Nuclear science has uses and applications that are relevant and crucial for world peace and sustainable development, so knowledge of its basic concepts and topics should constitute an integral part of civic scientific literacy. We have used two newspaper articles that deal with uses of nuclear science that are directly relevant to life, society, economy, and international politics. One article discusses a new thermonuclear reactor, and the second one is about depleted uranium and its danger for health. 189 first-year undergraduate physics and primary education Greek students were given one of the two articles each, and asked to answer a number of accompanying questions dealing with knowledge that is part of the Greek high school curriculum. The study was repeated with 272 first-year undergraduate physics, physics education, science education, and primary education Turkish students. Acceptable or partially acceptable answers were provided on average by around 20 % of Greek and 11 % of Turkish students, while a large proportion (on the average, around 50 % of Greek and 27 % of Turkish students) abstained from answering the questions. These findings are disappointing, but should be seen in the light of the limited or no coverage of the relevant learning material in the Greek and the Turkish high-school programs. Student conceptual difficulties, misconceptions and implications for research and high school curricula are discussed. 相似文献
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Dimitrios?StamovlasisEmail author Georgios?Tsaparlis 《International Journal of Science and Mathematics Education》2005,3(1):7-32
We employ tools of complexity theory to examine the effect of cognitive variables, such as working-memory capacity, degree of field dependence–independence, developmental level and the mobility–fixity dimension. The nonlinear method correlates the subjects rank-order achievement scores with each cognitive variable. From the achievement scores in organic-synthesis problems of various mental demands, rank-order sequences of the subjects, according to their scores, were generated, and in the place of each subject, his/her score was replaced by the value of the corresponding cognitive variable. Then each sequence was mapped onto a one-dimensional random walk, and when treated as a dynamic flow, was found to possess fractal geometry, with characteristics depending on the complexity of the problem. The findings were interpreted using concepts from complexity theory, such as order, correlation exponents, and entropy. The method provides meaningful results and adds to the understanding of information processing and the role of cognitive variables within the frame of predictive models in problem solving. Although the method is applied to a particular kind of problems (chemical, organic-synthesis problems), it can be generalized to other problems, not only in chemistry, but also in other sciences and in mathematics. Finally, the educational implications are discussed. 相似文献
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Sideridis GD Morgan PL Botsas G Padeliadu S Fuchs D 《Journal of learning disabilities》2006,39(3):215-229
We examined how strongly motivation, metacognition, and psychopathology acted as predictors of learning disabilities (LD). The results from five studies suggested that level of motivation (as shown through self-efficacy, motivational force, task avoidance, goal commitment, or self-concept) was highly accurate in classifying students with or at risk for LD. Metacognition and psychopathology were also strong predictors. Classification accuracy using receiver operating characteristic (ROC) curves ranged between 77% and 96%. These rates were much higher than the chance-level (i.e., 50%-55%) rates sometimes yielded by cognitive indices. Linear discriminant function (LDF) analysis substantiated classification accuracy. These results suggest that motivation, metacognition, and psychopathology are strong predictors of LD. Understanding the influence of these characteristics may help researchers and practitioners more accurately screen and treat students with LD. 相似文献