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121.
The concept attitude is often used in general mass media debate as a causal, explaining factor. In contrast, the concept has hardly ever appeared in the headlines of Swedish scientific reports in pedagogics during the last few years. A possible explanation may be the pessimistic opinion about the usefulness of attitude research expressed by researchers in adult education. Studies lending support to this defeatism are critically examined from a methodological point of view without finding support for the general conclusion that the attitude concept is of low interest, as an explanatory and a predicting construct.  相似文献   
122.
123.
The paper reports and discusses a government‐initiated nationwide assessment of writing proficiency among Norwegian compulsory school students. A sample‐study of 7th and 10th grade students are discussed and reported with regard to challenges in measuring writing skills in a valid and reliable manner. For the 7th graders the results showed a greater proportion of narrative texts, and in contrast to more scientific oriented texts, was assessed as “lower than expected”; however, for the 10th graders the tendency was opposite with respect to central linguistic components. Low correlations between the raters were ascertained at both levels, indicating different views among teachers as to what can be expected of students' writing proficiency. The results are discussed in relation to the usefulness of the theoretical model as a basis for assessment of writing proficiency, as well as other obstacles to constructing valid and reliable writing tests.  相似文献   
124.
In the literature, there is a general concern that a less number of students choose to study science, technology, engineering or mathematics (STEM). This paper presents results from a Danish longitudinal study which examines students’ choice of whether or not to continue studying STEM after upper-secondary school. In particular, this study focuses on students who held an STEM subject as one of their favourite subjects at secondary educational level, but who chose not to study STEM at the tertiary level. This paper explores how students’ perceptions of STEM relate to their identity work. The data used, primarily consist of interviews with 38 students at the end of upper-secondary school. The analysis explores the students’ expectations of what higher education STEM might be like. These expectations are contrasted with the first-year experiences of 18 of the 38 students who eventually entered a higher education STEM programme. The results show that the students who did not choose STEM, perceived STEM as stable, rigid and fixed, and, hence, too narrow a platform for developing and constructing desirable identities. The experiences of those students who actually entered a STEM programme turned out to be similar to these expectations. However, many choosers would also prefer their studies as less rigid and fixed. If the institutions could adjust to the form and content of the courses, it might both meet the interests of choosers and non-choosers and thereby both increase recruitment and retention at STEM higher education programmes.  相似文献   
125.
ABSTRACT

In this study, we explore the issues and challenges involved in supporting students’ learning to discern relevant and critical aspects of determining oxidation states of atoms in complex molecules. We present a detailed case of an interaction between three students and a tutor during a problem-solving class, using the analytical tool of practical epistemology analysis (PEA). The results show that the ability to make relevant distinctions between the different parts of a molecule for solving the problem, even with the guidance of the tutor, seemed to be challenging for students. These shifts were connected to both purposes that were specific for solving the problem at hand, and additional purposes for general learning of the subject matter, in this case how to assign oxidation states in molecules. The students sometimes could not follow the additional purposes introduced by the tutor, which made the related distinctions more confusing. Our results indicate that in order to provide adequate support and guidance for students the tutor needs to consider how to sequence, move between, and productively connect the different purposes introduced in a tutor-student interaction. One way of doing that is by first pursuing the purposes for solving the problem and then successively introduce additional, more general purposes for developing students’ learning of the subject matter studied. Further recommendations drawn from this study are discussed as well.  相似文献   
126.
Abstract

This paper examines the effect of participating in a web-based health programme that promotes personal tracking of high school students’ own measurements of a number of health-related parameters. Danish cross-sectional survey data were used to examine the effects of the health programme on various health measures. Both quantile regression models and standard ordinary least squares (OLS) models were used to explore the correlations between the students’ participation in the health programme and their body mass index (BMI), body fat percentage, aerobic fitness, and well-being. Participation in the health programme increased BMI and aerobic fitness among students with a BMI or an aerobic fitness value ranging from the 25th percentile to the 75th percentile and reduced body fat percentage among students with the highest percentages of body fat. In addition, the health programme led to an increased feeling of wellbeing among students, especially those with high BMI levels and poor aerobic fitness. As the schools participated in the health programme on voluntary basis and at a financial cost to themselves, the positive effects of participation found can only be stated to be valid among students from committed schools.  相似文献   
127.
The aims ofthe present study were to assess running economy in track runners and orienteers and to identify the factors responsible for any differences. The participants were 11 orienteers and 10 track runners of similar age, body mass, maximal oxygen uptake and training background. However, the orienteers included heavy terrain running in their daily training, whereas the track runners ran almost entirely on the roads and tracks. Maximal oxygen uptake and running economy were calculated during horizontal path running and during cross-country running in rough terrain with steep hills, using a telemetric system (K2, Cosmed, Italy). Running economy during path running was 217 +/- 12 and 212 +/- 14 ml.kg -1 .km -1 (mean +/- s) in the orienteers and the track runners, respectively. Running economy was impaired by 41-52% in heavy terrain (P ? 0.05), and was less pronounced in the orienteers than in the track runners (88 +/- 18 vs 109 +/- 26 ml.kg -1 .km -1 ; P ? 0.05). In conclusion, the better running economy of orienteers when changing from horizontal path to heavy terrain running could be an innate ability, or it could be speculated that specific training may improve running economy, indicating the importance of specific training for orienteers.  相似文献   
128.
Abstract

Four groups of male subjects participated in anaerobic testing on a Repco EX 10 cycle ergometer to determine the effectiveness of sodium bicarbonate (0.3 g kg‐1 body mass) as an ergogenic aid during exercise of 10, 30, 120 and 240 s duration. Blood was collected 90 min prior to ingestion of sodium bicarbonate (NaHCO3), after ingestion of NaHCO3 and immediately post‐exercise from a heated (43–46°C) fingertip and analysed immediately post‐collection for pH, base excess, bicarbonate and lactate. The total work undertaken (kj) and peak power achieved during the tests were also obtained via a Repco Work Monitor Unit. Blood bicarbonate levels were again increased above the control and placebo conditions (P< 0.001) and blood lactate levels were also increased following the bicarbonate trials. The pH levels fell significantly (P<0.05) below the control and placebo conditions in all trials. The results indicate that NaHCO3 at this dosage has no ergogenic benefit for work of either 10 or 30 s duration, even though blood bicarbonate levels were significantly increased (P<0.05) following ingestion of NaHCO3. For work periods of 120 and 240 s, performance was significantly increased (P<0.05) above the control and placebo conditions following NaHCO3 ingestion.  相似文献   
129.
Educational Studies in Mathematics - Emotions play an essential role in pre-service teachers’ competence development, particularly in mathematics. However, the emotion of shame in mathematics...  相似文献   
130.
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