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21.
The aim of this article is to develop analytical tools for studying mathematical communication in collaborative activities. The theoretical construct of contextualization is elaborated methodologically in order to study diversity in individual thinking in relation to effective communication. The construct of contextualization highlights issues of diversity in collaborative activities as it emphasizes how students may struggle differently with a learning activity. The interaction of students (12 to 13 years old), playing a specifically designed dice game, is used as an example for illustration. The article shows how accounting for the focal events of the interlocutors, and the contexts in which they contextualize these events, help in organizing our thinking about mathematically effective communication in collaborative activities.  相似文献   
22.
Background: Sustainable development, as an area of knowledge, appears in several different places in the curriculum and does not fit neatly within the scope of traditional subject areas. In many countries, including Sweden, it has long been upheld as an important tool for increasing understanding of, and dealing with, environmental problems. It is not clear, however, what role education can actually have in the making of a more sustainable future. Even though there are several potential ways for sustainable development to be involved in education, the concept raises many questions when transferred to the school context.

Purpose: This paper investigates how teachers deal with the difficulty of defining and approaching sustainable development as an area of knowledge in Swedish schools.

Sample: This article is based on semi-structured interviews with 40 teachers, 13 of whom were lower secondary school teachers (pupil age 12–15) and 27 were upper secondary school teachers (pupil age 15–18). The study involves teachers in all subjects where sustainable development is a goal in the syllabus. The study is also based on participant observation in one upper secondary class. A total of 17 different schools were involved, from a wide range of locations in Sweden.

Design and methods: The paper builds on qualitative data and the analysis of transcribed interviews and group interviews with teachers in Swedish lower and upper secondary schools. Group interviews, involving three or more people, were conducted on eight occasions. The pupils at an upper secondary school were also observed while they were working on a course called ‘policy and sustainable development’. Data were transcribed and analysed thematically.

Findings: The analysis suggests that, according to the teachers’ experiences, the demands of equivalence and measurability in school have increased and that this affects how sustainable development is approached in teaching and learning. Three main categories of knowledge were identified. The study also presents two representations that model how teachers may approach knowledge about sustainable development – metaphorically termed ‘the Accountant’ and ‘the Adventurer’ – and their different effects on knowledge.

Conclusions: There is a tendency for complex knowledge areas such as sustainable development, which do not fit seamlessly into traditional curriculum subjects, to become oversimplified when translated into teaching situations. According to the representations that we described metaphorically, the teacher, as an accountant, is characterised by ‘knowledge instrumentalism’, which means that teachers administer knowledge and the pupils consume it. In this transactional model, the accountant is also very dependent on external governance and control. Alternatively, the teacher, as an adventurer, is characterised by authority, knowledge and self-control. In this model, knowledge sometimes grows in an unpredictable way in the meeting between people who share common experiences. For adventurers, sustainable development is a matter of commitment and awareness, and it involves an explicit stance. The metaphors can be placed on a continuum which describes how teachers manage the demands of the school system in relation to the knowledge area of sustainable development.  相似文献   
23.
Formative assessment can serve as a catalyst for increased student effort and student learning. Yet, many engineering degree programmes are dominated by summative assessment and make limited use of formative assessment. The present case study serves as an example on how formative assessment can be used strategically to increase student effort and improve student learning. Within five courses of an engineering bachelor degree programme in Norway, the mandatory coursework assignments were removed and replaced by formative-only assessment. To facilitate the formative assessment, weekly student peer-assessment sessions were introduced. The main findings include an increase in student study hours and improved student performance on the examinations. Finally, interviews were conducted by an external consultant in an effort to identify key factors that attributed to the positive outcome.  相似文献   
24.
The study was concerned with the relation between reading comprehension and task‐specific strategies used in arithmetical word problems. Two hypotheses were formulated in the study. H1 stated that subjects good at arithmetic as well as reading (Group 1) would emphasize deductive strategies to a greater extent than subjects in the remaining groups. H2 considered IQ to be a stronger predictor for subjects’ strategies in arithmetical word tasks than reading comprehension. Four groups of 9‐year‐old children with different competencies in arithmetic and reading were sampled for the investigation. An intelligence test (WISC) and three other tests, Mathematical tests 1‐3, were constructed and administered to the 20 subjects. The tests were used to examine subjects’ strategies in completed task solutions. The findings indicated that great similarities existed between Groups 1 (good at both skills) and 2 (good at arithmetic and poor at reading) as to strategies used in addition and subtraction problems. Whereas subjects in groups 1 and 2 mainly used deductive strategies, those in Groups 3 (good at reading and poor at arithmetic) and 4 (poor at both skills) rather used procedural strategies in solving the problems. Concerning strategies applied in multiplication and division tasks a more diverse pattern of strategies was revealed in all of the four groups, but the majority of subjects emphasized deductive strategies. Multiple regression analyses of the data indicated strong linear relationships between the predictors and the criteria used in the analyses. However, IQ was the only significant single predictor found in the regression analyses. H1 had to be suspended, but H2 could not be rejected.  相似文献   
25.
During the past decades, many developing countries have been severely hit by a combination of poverty and the HIV pandemic. However, there has been a debate about the relative contribution of these two factors. This study showed that poverty and orphanhood were two separate but interrelated factors contributing to poor schooling. There were no differentials shown based on double orphanhood or gender. We recommend that educational policies should put into consideration both poverty and orphanhood in order to increase schooling access for children affected by HIV/AIDS and poverty.  相似文献   
26.
Given that it is a delicate task to meet the educational needs of adult emergent readers in a second language setting, this study serves to explore the teaching practice of teachers working with learners of initial literacy and second language. Based on a situated learning perspective, data from 16 lesson observations of nine teachers is analysed. The findings show that teachers initiate and negotiate learning activities, strive to get the students to understand words and other symbols, facilitate participation within and outside the classroom and negotiate the acceptable student behaviour. These findings suggest that Literacy Education and Second Language Learning for Adults (LESLLA) teaching and learning is a particular practice, where the teachers’ actions are intertwined with those of the learners and with the teachers’ conceptions of the learners. In that way, the teachers’ actions do not only speak of the learners, but also of their own professional identity.  相似文献   
27.
The purpose of this article is to study how WebTV channel additions influence the following relationship dimensions between a broadcasting company and its consumers: brand knowledge, brand satisfaction, direct relationship investments, and indirect relationship investments. A survey of broadcast consumers indicated positive effects of WebTV channel additions on all 4 brand relationship dimensions. The findings also indicate that brand satisfaction, direct relationship investments, and indirect relationship investments mediate the effect of WebTV channel additions on customers' use of the broadcaster's main channel. The implication of the results is that WebTV channel additions have the potential to strengthen consumer-brand relationships and that WebTV channel additions seem to complement rather than substitute a broadcast company's main channel. Based on the results, WebTV channel additions are recommended as a channel strategy for broadcasting companies. Similar studies in other industries and settings are suggested before the results can be generalized more broadly.  相似文献   
28.
This study, carried out in England, examined the variation of attitudes towards science over the first three years of secondary schooling and with gender. The study in question was part of an evaluation of the “Lab in a Lorry” project, and involved 932 pupils completing a pre‐measure questionnaire containing items looking at six separate attitude constructs. From these data, two main patterns emerged; pupils’ attitudes towards science declined as they progressed through secondary school, and this decline was more pronounced for female pupils. These conclusions are largely in agreement with previous studies in this field. However, in examining separate attitude constructs, we were also able to identify that the sharpest decline occurred specifically for pupils’ attitude towards learning science in school. Furthermore, using linear regression, we identified that, as pupils progress through school, this construct becomes a greater influence on attitudes towards future participation in science. Therefore, we also concluded that learning science in school is a particular area that needs to be concentrated upon, if we are to improve children’s attitudes towards science. In the final part of the paper, we drew on interview data obtained from 44 pupils involved in the Lab in a Lorry study. Pupils’ comments in these interviews provided further insight into why pupils are “switched off” by school science. We drew out the most prevalent themes that emerged in the interviews, in order to provide further insight into why pupils do not enjoy science in school.  相似文献   
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30.
This paper explores the digitalisation of teaching and learning understood as external processes, influenced by government and international trends and as internal processes within the institutions, in Denmark and Norway. These are countries with similarities regarding digitalisation and educational systems. In the internal processes, there was some use of digital technology in teaching and learning when initiated from administration including IT-staff, in collaboration with academic leaders. There was little or only limited reported use of technology for teaching and learning, when the processes were initiated by administration together with enthusiasts among faculty staff, who did not have leadership roles or influence on change. There was more reported use of technology in teaching and learning in Denmark than Norway. The paper discusses possible explanations for these findings and thus illuminates how processes of digitalisation are influenced by broader governance arrangements, institutional maturity and academic and administration staffs.  相似文献   
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