Mid-life career changing to teaching profession: a study of secondary school teachers in a rural community     

Luis Miguel Dos Santos 《师资教育杂志》2019,45(2):225-227

There are many research projects focused on pre-service teachers’ professional development programmes but only a few focus on mid-life career-changing teachers’ career decision. This paper worked with data collected from semi-structured interviews with 11 mid-life career-changing secondary school teachers. The aim was to understand the career decisions of these participants and how they made sense of their new profession during their mature adulthood in Indiana, USA. 11 mid-life career-changing secondary school teachers referred to ‘changing the next generation with industry experience’, ‘rich life experience’, ‘life-long learning’, ‘knowledge transferring’, and ‘make a difference’ to describe their current occupation as career changing secondary school teachers. The findings also outline how to reform the curriculum and instruction of the pre-service teachers’ professional development programmes.  相似文献   

Analysis of the Meanings of the Antiderivative Used by Students of the First Engineering Courses     

Luis R. Pino-Fan  Vicenç Font  Wilson Gordillo  Víctor Larios  Adriana Breda 《International Journal of Science and Mathematics Education》2018,16(6):1091-1113

In this article, we present the results of the administration of a questionnaire designed to evaluate the understanding that civil engineering students have of the antiderivative. The questionnaire was simultaneously administered to samples of Mexican and Colombian students. For the analysis of the answers, we used some theoretical and methodological notions provided by the theoretical model known as Onto-Semiotic Approach (OSA) to mathematical cognition and instruction. The results revealed the meanings of the antiderivative that are more predominantly used by civil engineering students. Also, the comparison between the mathematical activity of Mexican and Colombian students provides information that allows concluding that the meanings mobilized could be shared among their communities and are not particular of their classroom or university.  相似文献   

The association between homework and primary school children's academic achievement. International evidence from PIRLS and TIMSS     

John Jerrim  Luis Alejandro Lopez-Agudo  Oscar D. Marcenaro-Gutierrez 《European Journal of Education》2020,55(2):248-260

The association between time devoted to homework and children's academic achievement has long been an issue of great debate. A small number of mainly correlational studies have been conducted into this issue in a primary school setting, but have produced somewhat mixed results. In this paper we contribute to this literature by investigating the relationship between time spent upon homework and children's outcomes across 24 countries. By using a student fixed-effects approach, capturing differences in homework time amongst the same student across different school subjects, we argue that our results are likely to be subject to less confounding than much of the existing literature. We find little evidence that the amount of homework time primary school children are assigned is related to their academic achievement. This holds true across a large number of countries, survives various robustness tests and does not vary by gender or socio-economic status. We interpret this finding as suggesting that the homework assigned to primary school pupils may not be adequate to produce a positive association, and needs be improved if this time-consuming activity is ever going to bring benefits for children's academic achievement.  相似文献   

Extra-curricular participation in sports and socio-demographic factors in Spanish adolescents: the AVENA study     

Gracia-Marco L  Tomas C  Vicente-Rodriguez G  Jimenez-Pavon D  Rey-Lopez JP  Ortega FB  Lanza-Saiz R  Moreno LA 《Journal of sports sciences》2010,28(13):1383-1389

The aims of this study were to identify differences between the sexes in extra-curricular participation in sports and to determine its association with body fat and socio-demographic factors in Spanish adolescents. A total of 2165 adolescents (1124 males and 1041 females) aged 13.0-18.5 years from the AVENA Study participated. Participants filled in an ad hoc questionnaire for extra-curricular participation in sports, which was the dependent variable. Independent variables were: age, percent body fat, and father's and mother's educational level and occupation. Chi-square tests and logistic regression were applied. Bivariate analysis showed for male adolescents that age and father's occupation were related to extra-curricular participation in sports. In addition, body fat and mother's education and occupation (all P?相似文献   

Relationship quality,community promotion and brand loyalty in virtual communities: Evidence from free software communities     

Luis V. Casaló  Carlos Flavián  Miguel Guinalíu 《International Journal of Information Management》2010

The Internet has favored the growth of collaborative platforms where marketers and consumers interact to develop more engaging products and services. These platforms are usually centered in a specific brand/product and their members are linked by a shared admiration to that brand. This paper analyzes one of the most powerful online collaborative platforms, the free software (FS) case, which involves a lot of virtual communities developed around products such as Linux or Android, the new Google's mobile operating system. Our purpose is to determine some of the main antecedents and consequences of the consumer involvement in this type of communities. Results have shown that satisfaction with a virtual community may increase the level of consumer participation in that community. At the same time, a greater identification with the virtual community may increase indirectly the consumer participation thanks to the enhancement of his/her satisfaction with the community. We have also found positive and significant effects of consumer identification and participation on the level of community promotion. Finally, positive and significant effects of consumer participation and satisfaction with the community on loyalty to the FS were also found. These findings allow us to conclude some interesting managerial implications.  相似文献   

Learning science through research apprenticeships: A critical review of the literature   总被引：1，自引：0，他引：1  

Troy D. Sadler  Stephen Burgin  Lyle McKinney  Luis Ponjuan 《科学教学研究杂志》2010,47(3):235-256

Science education models for secondary and college students as well as K‐12 teachers have been dominated by classroom‐based approaches. Recently, research apprenticeships wherein learners worked with practicing scientists on authentic scientific research have become increasingly popular. The purpose of this critical review of the literature was to review and synthesize empirical studies that have explored learning outcomes associated with research apprenticeships for science learners. We reviewed 53 studies of scientific research apprenticeship experiences for secondary students, undergraduates and teachers, both pre‐service and in‐service. The review explored various learning outcomes associated with participation in research apprenticeships. These outcomes included effects of apprenticeship experiences on participant career aspirations, ideas about the nature of science (NOS), understandings of scientific content, confidence for doing science and intellectual development. The extant literature supported many of the presumed positive associations between apprenticeship experiences and desired learning outcomes, but findings related to some themes (e.g., NOS understandings) supported conflicting conclusions. Implications included importance of the length of the apprenticeship, need to explicitly place attention on desired outcomes, and engagement of participants. © 2009 Wiley Periodicals, Inc. J Res Sci Teach 47:235–256, 2010  相似文献   

Modes of learning and profitability in Colombian and Mexican SMEs     

Luis Enrique Valdez-Juárez  Omar Javier Solano-Rodríguez  Dominique Philippe Martin 《The Journal of High Technology Management Research》2018,29(2):193-203

The aim of this study is to analyze the effects of different modes of learning on innovation and profitability in SMEs in two Latin American countries; Mexico and Colombia. The data were obtained using a sample of 250 companies in the industrial sector operating in both countries. Results show that an integrated mode of learning based on internal and external knowledge supported by technological infrastructure have positive and significant effects on the degree of innovation and the profitability in SMEs However this effect appears to be not significantly different from the traditional SMEs mode of learning based mainly on market orientation.  相似文献   

Change-of direction deficit in elite young soccer players     

Irineu Loturco  Sophia Nimphius  Ronaldo Kobal  Altamiro Bottino  Vinicius Zanetti  Lucas A. Pereira  Ian Jeffreys 《Sportwissenschaft》2018,48(2):228-234

Change-of-direction (COD) ability is an essential physical component for soccer. This study examined the relationships between conventional speed–power assessments and COD performance in elite young soccer players. Twenty-five under-20 male players from the same club (age: 17.6?±?0.8 years, height: 178.1?±?6.7?cm, body mass [BM]: 72.2?±?7.9?kg) performed sprint speed tests, vertical jumps, loaded jump squats, half squats, and Zigzag COD assessments. Moreover, the COD deficit was calculated as the difference between 20-m sprint velocity and Zigzag COD test velocity. A Pearson correlation analysis was used to determine the correlations between Zigzag COD performance and COD deficit with speed and power outputs. Although no significant relationships between speed–power variables and COD ability were present, there were still strong positive correlations between traditional neuromechanical measures and COD deficit. Briefly, it seems that higher performances in speed and power tests are not necessarily related to better performances in specific COD maneuvers. Therefore, it is recommended that coaches and technical staff include specific COD drills in soccer player routines to optimize the transference from speed and power capacities to specific COD performance.  相似文献   

Swimming and peak bone mineral density: A systematic review and meta-analysis     

Alejandro Gomez-Bruton  Jesús Montero-Marín  Alejandro González-Agüero  Alba Gómez-Cabello  Javier García-Campayo  Luis A. Moreno 《Journal of sports sciences》2018,36(4):365-377

This meta-analysis aims to determine the effects of regular swimming on bone mineral density (BMD) in young adults (18–30 years). A systematic search was performed in Pubmed, SPORTDiscus and the Cochrane Library from the earliest possible year to March 2016. Swimmers were compared to non-athletic controls (CG) and to high-impact athletes (HIGH). Effect sizes with the Hedges g in random effects models were developed. Fourteen studies met the inclusion criteria and were included in the meta-analyses. Swimmers presented similar BMD values to CG in whole-body (g = ?0.20; P = 0.251), femoral neck (g = ?0.05; P = 0.818) and lumbar spine (g = 0.18; P = 0.492); and lower BMD in the whole-body (g = ?1.21; P < 0.001), femoral neck (g = ?1.51; P < 0.001) and lumbar spine (g = ?0.84; P = 0.017) than the HIGH. For the whole-body differences, the higher the latitude the smaller the differences between swimmers and HIGH (B = 0.10; P = 0.001). For the femoral neck differences, age also seemed to reduce the differences between groups (B = 0.19; P = 0.020). Young adult swimmers present similar BMD values than CG and lower values than HIGH.  相似文献   

MenCare+ in South Africa: findings from a gender transformative young men’s group education on sexual and reproductive health and rights     

Harald Kedde  Kerryn Rehse  Giovanni Nobre  Wessel van den Berg 《Sex education》2018,18(2):206-218

This paper details findings from an evaluation of a gender-transformative sexual and reproductive health and rights group education programme facilitated with young men aged 15–24 years in South Africa. A total of 475 young men participated in the group education programme. A self-administered pre- and post-questionnaire survey was conducted with a sample of the participants, and focus group discussions were facilitated. A total of 265 young men completed both the pre and post-questionnaires. Findings from the surveys as well as the focus group discussions showed positive changes in gender equitable attitudes, contraception and condom use. Results indicate that the young men who participated in the group education learned to identify harmful gender norms and actively questioned these constructs both within their personal lives and in the broader community. The intervention enabled some participants to envision alternative versions of masculinity and femininity, thus enabling them to adopt a new way of being, with transformed attitudes concerning household and gender roles.  相似文献