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排序方式: 共有113条查询结果,搜索用时 31 毫秒
31.
This article explores the effectiveness of intervention discussion sections for a college general chemistry course designed to apply research on student preconceptions, knowledge integration, and student explanation. Two interventions, on bond energy and spontaneity, were tested and intervention student performance was compared with that of a control group that did not use the experimental pedagogy. Results indicate that this instruction, which identifies students' initial conceptions and integrates those ideas into class discussion, leads to enhanced conceptual understanding. The intervention group outperformed the control group on a written course midterm, the thermodynamics portion of a standardized American Chemical Society examination, and an in‐depth interview. In interviews, the intervention group students explained the energetics of bond breaking and formation at a more sophisticated level than did the control students. In contrast, control students were more tenuous in their thinking, tended to contradict themselves more when discussing bond energy, and harbored more misconceptions about spontaneity. © 2002 Wiley Periodicals, Inc. J Res Sci Teach 39: 464–496, 2002 相似文献
32.
Jenny Nilsson Folke 《Gender and education》2016,28(7):823-838
What can we learn from and with the body in order to understand more about the (lived) experiences of newly arrived students in schools? This question has hitherto been given little attention in relation to the field of migration and education. Using the perspective of Ahmed's critical feminist phenomenology, this article aims to explore the embodied experiences of the different contexts that newly arrived students encounter in a rural monolingual school in Sweden. The empirical data are based on participant observation conducted in introductory and mainstream classrooms, as well as interviews undertaken with newly arrived students during a year of fieldwork. The findings of our study show how close attention to newly arrived students' embodied experiences can help to dispel prevailing myths surrounding inclusion, bringing to light thereby how the current lived conditions of inclusion in fact carry with them lines of exclusion. 相似文献
33.
‘What would an ideal social justice advocate look like, and how do our graduates compare?’ is asked by training programs in the helping/health professions (e.g. counselling and psychology, nursing, and education) that have social justice advocacy (SJA) as a core competency. We demonstrate a method for answering this question empirically – cognitive diagnostic modelling (CDM). We used the four dimensions of the Social Issues Advocacy Scale (SIAS; Nilsson, Marszalek, Linnemeyer, Bahner, &; Hanson Misialek, 2011) as attributes of SJA, and fit SIAS responses to a CDM of 16 attribute mastery profiles. One-quarter of the sample had a profile suggesting SJA attitudes without action; one-fifth, a profile suggesting monitoring SJA in politics without participation; and one-eighth, a profile suggesting individuals rarely engage in action without SJA attitudes. We also found significant relationships between mastery profiles and degree pursued, degree field, and political affiliation. These results demonstrated the utility of CDM for training program assessment of SJA. 相似文献
34.
Angelika Kullberg Ulla Runesson Ference Marton Anna Vikström Pernilla Nilsson Pernilla Mårtensson 《Teachers and Teaching》2016,22(6):745-759
Twelve lower secondary schoolteachers in mathematics and science were asked to teach a topic of their choice during a lesson that was video-recorded. We were able to analyse 10 of the cases and we found that all of them were similar in one respect: concepts and principles were introduced one at a time, each one followed by examples of the concept or principle in question, apparently to highlight its essential meaning. All the teachers participated in three modified lesson studies with three cycles in four different groups during three semesters. The modified lesson studies were built on a theoretical idea supported by a large number of recent studies. The theory states that new meanings (of concepts and principles, for instance) are learned through engaging with instances of contrasting concepts and principles. The core idea is that new meanings derive from differences, not from sameness. After the three modified lesson studies, the teachers were asked to once again teach the same topic as in the recorded lessons before the lesson studies. The new lessons were also recorded and the analysis showed that there was one thing in common in all cases: all of the 10 teachers dealt with the relevant concepts and principles in relation to each other (i.e. simultaneously) and not one at a time. By thus bringing out the differences between them, their meaning was made possible to grasp for the students. The study lends support to the conjecture that the modified lesson study is a powerful tool for enabling teachers to structure the content of their teaching in accordance with a principle that is more powerful in making learning possible, even if this contradicts their taken-for-granted practice. 相似文献
35.
Both the environment and genetics are likely to influence the development of cognitive talent during the preschool years. It is not known to what degree or how these influences differ from those throughout the range of ability. 1943 twin pairs were assessed at 2, 3 and 4 years of age using diverse verbal and nonverbal cognitive measures. Consistently high scoring children were selected on a general cognitive factor. From behavioural genetic model fitting analyses, substantial shared environmental (70%) and modest genetic influences (20%) were found in the high group and this matched the aetiology of the entire sample. Strong genetic predisposition was not apparent. Individual differences in cognitive ability and high ability is largely due to shared environment during the preschool years. 相似文献
36.
Nilsson PM 《Journal of Zhejiang University. Science. B》2011,12(8):611-623
There is overwhelming evidence that hypertension is an important risk factor for both macrovascular and microvascular complications
in patients with diabetes, but the problem remains to identify appropriate goals for preventive therapies. A number of guidelines
(the European Society of Cardiology (ESC)/European Association for the Study of Diabetes (EASD) 2007, the Joint National Committee
(JNC)-VII 2003, the American Diabetes Association (ADA) 2011) have for example advocated a blood pressure goal of less than
130/80 mmHg, but this suggestion has been challenged by findings in recent trials and meta-analyses (2011). The European Society
of Hypertension (ESH) therefore recommends a systolic blood pressure goal of “well below” 140 mmHg. Based on evidence from
both randomized controlled trials (hypertension optimal treatment (HOT), action in diabetes and vascular disease: preterax
and diamicron MR controlled evaluation (ADVANCE), action to control cardiovascular risk in diabetes (ACCORD)) and observational
studies (ongoing telmisartan alone and in combination with ramipril global endpoint trial (ONTARGET), international verapamil-trandolapril
study (INVEST), treat to new targets (TNT), and the National Diabetes Register (NDR)), it has been shown that the benefit
for stroke reduction remains even at lower achieved blood pressure levels, but the risk of coronary events may be uninfluenced
or even increased at lower systolic blood pressure levels. In a recent meta-analysis, it was therefore concluded that the
new recommended goal should be 130–135 mmHg systolic blood pressure for most patients with type 2 diabetes. Other risk factors
should also be controlled with a more ambitious strategy applied in the younger patients with shorter diabetes duration, but
a more cautious approach in the elderly and frail patients with a number of vascular or non-vascular co-morbidities. In patients
from East Asia, such as China, the stroke risk is relatively higher than the risk of coronary events. This must also be taken
into consideration for individualized goal setting in relation to total risk, for example in patients from stroke-prone families.
In conclusion, the current strategy is to have a more individualized approach to risk factor control in patients with type
2 diabetes, also relevant for blood pressure control. 相似文献
37.
Angelica Moè 《Learning and individual differences》2012,22(1):20-24
The fear of underperforming owing to stereotype threat affects women's performance in tasks such as mathematics, chess, and spatial reasoning. The present research considered mental rotation and explored effects on performance and on regulatory focus of instructions pointing to different explanations for gender differences. Two hundred and one participants were asked to perform the Mental Rotation Test (MRT) and were told that men perform better than women. Then they were divided into four sub-groups and provided with no additional information (control condition) or one of three explanations: (a) genetic factors, (b) widely-held stereotype, or (c) time limit. A decrease in performance was predicted for the genetic instruction and an increase for the two alternative explanations based on externalizing. Results showed that both women and men are harmed by the genetic explanation and relieved by both the stereotype and the time limit explanations. Explanations stressing genetics and time limit as factors affecting performance favor prevention focus. 相似文献
38.
This article reports on the views of school nurses (n = 25) and students with recurrent pain (n = 24) in Sweden with regard to school-based pedagogic practices. A number of common categories with implications for pedagogic practice were identified by analysing qualitative interviews with these groups, using the coding techniques of grounded theory. The results indicate that a failure to develop trust made it difficult for some students to initiate contact with a school nurse and that some students perceive the issue of recurrent pain being of relevance to all young people, deserving coverage in the curriculum. We thus conclude that it is important to integrate personal, social and health education in the ordinary spaces of teaching and learning in order to complement and bolster the conventionally organised school health services in Sweden. However, this might be difficult to achieve because many of the school nurses emphasised that health and education were commonly treated on parallel tracks in their schools, under the management of different authorities. 相似文献
39.
During the last decades, digital technologies have become more common in providing opportunities for reflection and in-depth analysis of classroom practices and have afforded new ways of organising teacher education. In particular, videotaped lessons have proven to be a valuable tool for capturing teaching episodes, subsequent reflection and development of student teachers’ professional knowledge, here referred to as ‘pedagogical content knowledge’ (PCK). The aim of this project was to investigate how the use of the reflective tool, content representations (CoRes) in combination with video and associated digital tools might be used as a means for capturing student teachers’ professional knowledge of practice. In the study we explore how a group of 24 secondary science student teachers were provided with Content Representations (CoRe) and video annotations to support their reflection-on-action during their practicum. Video annotations, alongside a written reflection of critical incidents in the student teachers’ teaching constituted data for analysis. Our findings suggest that the different tools enabled the student teachers to connect captured examples of teaching instances with theoretical issues, and in this way offered the ability to see as well as to analyse their teaching practice. As such, the CoRe, together with the video annotation tool, proved to be successful in scaffolding and structuring student teachers’ reflection-on-action, allowing them to connect their reflections to components of PCK and further to articulate connections between these components. 相似文献
40.