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121.
Students’ mathematical problem-solving experiences are fraught with failed attempts, wrong turns, and partial successes that move in fits and jerks, oscillating between periods of inactivity, stalled progress, rapid advancement, and epiphanies. Students’ problem-solving journals, however, do not always reflect this rather organic process. Without proper guidance, some students tend to ‘smooth’ out their experiences and produce journal writing that is less reflective of the process and more representative of their product. In this article, I present research on the effectiveness of a persona-based framework for guiding students’ journaling to reflect the erratic to-and-fro of the problem-solving process more accurately. This framework incorporates the use of three personas—the narrator, the mathematician, and the participant—in telling the tale of the problem-solving process. Results indicate that this persona-based framework is effective in producing more representative journals.  相似文献   
122.
This paper examines the need for re-evaluating archival principles and practices. Opportunities created to enhance and enrich archival work and difficulties of archiving digital information, because of its nature, are reviewed. “Records series” are used to illustrate the consequences in terms of selection and appraisal of records. The preservation of digital information also raises new challenges. The impact of digital information on the ethical, legal and societal issues (protection, confidentiality, privacy, etc.) is emphasized.  相似文献   
123.
The Competitive State Anxiety Inventory-2 (CSAI-2) is one of the most frequently used instruments when assessing competitive state anxiety in sport psychology research. However, doubts have been expressed about the factorial validity of both the English and the Greek versions of the scale. Hence, a revised version of the inventory (CSAI-2R) has recently been suggested to be more psychometrically sound (Cox et al., 2003). In the present study, the aim was to evaluate the psychometric properties of the Swedish version of the CSAI-2 using confirmatory factor analyses. A total of 969 athletes (571 men and 398 women) competing in 26 different sports completed the Swedish version of the CSAI-2. Three different factor structures were evaluated: the original three-factor model (with cognitive anxiety, somatic anxiety and self-confidence), a two-factor model in which self-confidence was excluded, and a three-factor model containing 17 items (CSAI-2R). The results revealed that only the 17-item model displayed an acceptable fit to the data. Although some doubts remain about the amount of variance that can be attributed to error variance in the subscales, the results suggest that it is better to use the CSAI-2R rather than the original CSAI-2.  相似文献   
124.
The paper presents a model that evaluates how upgraded technological capabilities of emerging country based multinationals (EMNCs) and an increase in the domestic market size of large emerging countries affect value chain location choices and the competitiveness of emerging country based firms versus advanced country based ones. The model shows that, even without possessing a competitive advantage in terms of technology and/or brands, EMNCs from large or rapidly technologically advancing countries can become dominant players in the global system. The model highlights the central role of firm level technological intensity and product differentiation in determining the location of value chain activities as well as defining organisational boundaries. Empirical analysis of the location choices of the world's top multinationals from large advanced and emerging countries in 2010 supports the model's predictions.  相似文献   
125.
Children are capable of viewing object ownership as categorical and exclusive, but ownership claims can also vary by degree. This study investigated how children use these different conceptions of ownership in a giving and a taking task. In two studies, 4- to 7-year olds (= 105) could give and take craft objects that they or another child had found (weaker claim) and made (stronger claim). In Study 1, no additional ownership information was given, and in Study 2 categorical ownership was stated (“these belong to you”). The results showed that children used categorical ownership for their own objects but used ownership strength for the other child's objects, taking more of the found items.  相似文献   
126.
The present paper examines whether there is significant variation in schooling outcomes between Scottish secondary schools, and if so, how much is associated with pupil intake, and how much is associated with the schools they attend. It also examines whether schools vary in their effectiveness for different types of pupils, and whether schools tend to be superior, or inferior, across three different outcome measures. The study employed a subsample of data from the 1977 Scottish School Leavers Survey on over 700 pupils from 15 schools in one administrative division. These data were linked to data on the verbal reasoning quotients of the pupils, derived from a test administered to them before they entered secondary school. For each of the 15 schools we estimated the expected scores on measures of English, arithmetic and overall attainment for pupils with below average, average, and above average ability, controlling for pupils’ verbal ability, gender, prestige of father's occupation, mother's education, and number of siblings. The study shows there was wide variation in schooling outcomes between secondary schools in the division, even after controlling for family background characteristics and pupil ability prior to entering secondary school. There were few schools that were particularly effective for low ability pupils, but not high ability pupils and vice versa. Schools tended to be effective, or ineffective, across all three outcome measures.  相似文献   
127.
128.
A good deal of research has tried to establish the precursors of literacy in terms of the abilities in children which are most likely to lead to good progress in reading and writing. As Monica Lazo and Peter Pumfrey point out, several aspects of metalinguistic ability have been identified as important and in their research, reported here, they found that three aspects of this ability were particularly significant to children's literacy development. These aspects, phonological awareness, print awareness and semantic/syntactic awareness seem to play crucial roles in children's reading and spelling but not in isolation. It is the combination of these which seems to make the difference, a finding with important implications for teachers of early literacy.  相似文献   
129.
This study investigated the associations between cultural diversity approaches endorsed by teachers and adolescents' positive and negative intergroup contact in schools. Participants were 984 adolescents (Mage = 14.66; 62.7% female; 24.8% ethnic minority) involved in a three-wave longitudinal study between 2019 and 2020. Results highlighted that perceived equal treatment by teachers was related to higher positive and lower negative contact over time. However, perceived support for contact and cooperation and interest of teachers in children's cultural background were not related to either positive or negative contact over time. Importantly, the results were replicated across ethnic minority and majority adolescents. This study provides novel insights into the key role that teachers can play in promoting cultural diversity approaches to facilitate harmonious intergroup interactions in schools.  相似文献   
130.
Using social cognitive career theory, we examined the relationships between parental variables (parental career expectations, adolescent–parent career congruence) and adolescent career aspirations and career actions (planning, exploration) in a sample of Grade 10 Indonesian high school students. We found good support for a model that revealed various routes by which the two parental variables were associated with adolescent career aspirations and career actions, although the main influence of the parental variables was by way of self-efficacy. The findings demonstrate important roles for parental career expectations and adolescent–parent career congruence in adolescents’ career aspirations and actions.  相似文献   
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