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21.
当前是我国进一步推进素质教育发展、落实立德树人教育任务、提升学生身心健康水平的关键时期。为充分整合体育人才资源,提升兼职体育教师素养水平和体育教学质量,推进新时代体育师资队伍建设,采用文献研究法、访谈法、逻辑推理等方法,界定兼职体育教师的概念,分析我国兼职体育教师的需求原因及素养提升需求;通过解构教师素养结构体系,重新构建由基础素养、职业素养、专业素养组成的教师素养"金字塔"模型;并观照此模型及兼职体育教师素养现实提出兼职体育教师素养提升策略。  相似文献   
22.
This study analyzes gains in cognitive components of learning competence with respect to cohorts based on ability tracking in a Czech longitudinal study. Propensity score matching is used to form parallelized samples of academic and non-academic track students and to eliminate the effect of selective school intake. We applied regression models on the total scores to test for the overall track effect. Furthermore, we analyze scores and gains on the subscores and check for differential item functioning in Grade 6 and in change to Grade 9. While after 3 years, no significant difference between the two tracks was apparent in the total learning competence score, we did, however, find significant differences in some subscores and in the functioning of some items. We argue that item-level analysis is important for deeper understanding of the tracking implications and may provide the basis for more precise evidence-based decisions regarding the tracking policy.  相似文献   
23.
This study explores new directions to study and combine measurements of instructional expertise and teachers’ interpersonal relationships with students. The sample comprises 34 in-service teachers. The My Teacher questionnaire (MTQ) was used to operationalize teachers’ instructional expertise. The Questionnaire of Teacher Interaction (QTI) was used to describe teachers’ interpersonal relationships with students. Hypotheses were tested using circular mixed-effects models. Results indicate that teachers’ interpersonal relationships differ at successive levels of instructional expertise. Results further indicated that increases in instructional expertise are associated with a sharp decrease in the within-class variance in interpersonal relationships. Specifically, the higher teachers’ instructional expertise, the more teachers' interpersonal relationships are described as “directing” and “helpful” by all students in the class.  相似文献   
24.
目的观察12周惯性哑铃练习对轻度认知损害(MCI)老年人认知功能、身体活动能力、生活质量和睡眠质量的影响,并探讨认知改善与其他功能改变之间的关系。方法将45名MCI老年人随机分为干预组(n=22)和对照组(n=23)。干预组受试者进行惯性哑铃练习(3次/周,60 min/次,持续12周),对照组不进行运动干预。结果 12周后,干预组受试者阿尔茨海默病评定量表-认知部分(ADAS-Cog)总分/指令得分、蒙特利尔认知评估量表(MoCA)评分、起立行走计时(TUG)和SF-36健康调查问卷(SF-36)心理总得分均显著改善(均P<0.05)。与对照组相比,干预组受试者ADAS-Cog总分/单词回忆得分/注意力得分、简明精神量表(MMSE)评分、TUG和匹兹堡睡眠指数(PSQI)的改善程度均具有显著差异(P<0.05或P=0.05)。偏相关分析结果显示,SF-36心理总得分改变(r=-0.712)、PSQI改变(r=-0.380)与认知改善程度均呈显著负相关。结论 12周惯性哑铃练习可显著提高MCI老年人的认知功能,并对其移动能力、生活质量和睡眠质量具有积极影响,且心理和睡眠改变程度可能影响认知功能的改善效果。  相似文献   
25.
Soybean accounts for more than half of the global production of oilseed and more than a quarter of the protein used globally for human food and animal feed. Soybean domestication involved parallel increases in seed size and oil content, and a concomitant decrease in protein content. However, science has not yet discovered whether these effects were due to selective pressure on a single gene or multiple genes. Here, re-sequencing data from >800 genotypes revealed a strong selection during soybean domestication on GmSWEET10a. The selection of GmSWEET10a conferred simultaneous increases in soybean-seed size and oil content as well as a reduction in the protein content. The result was validated using both near-isogenic lines carrying substitution of haplotype chromosomal segments and transgenic soybeans. Moreover, GmSWEET10b was found to be functionally redundant with its homologue GmSWEET10a and to be undergoing selection in current breeding, leading the the elite allele GmSWEET10b, a potential target for present-day soybean breeding. Both GmSWEET10a and GmSWEET10b were shown to transport sucrose and hexose, contributing to sugar allocation from seed coat to embryo, which consequently determines oil and protein contents and seed size in soybean. We conclude that past selection of optimal GmSWEET10a alleles drove the initial domestication of multiple soybean-seed traits and that targeted selection of the elite allele GmSWEET10b may further improve the yield and seed quality of modern soybean cultivars.  相似文献   
26.
Students in the same class can differ considerably in their perceptions of teaching quality, but little is known about the drivers of this lack of agreement. In this study, we relied on within-class consensus as a measure of agreement in students' perceptions and explored both student-reported predictors (Sample 1) and teacher-reported predictors (Sample 2) of consensus in students’ ratings of six goal structures dimensions (task, autonomy, recognition, grouping, evaluation, time). Classroom-level results from multi-level models indicated that student-perceived differential teacher treatment negatively predicted consensus regarding evaluation, as well as achievement heterogeneity, whereas instructional clarity positively predicted consensus for recognition, grouping, and evaluation, as well as class-average achievement (Sample 1). Mediating effects of achievement heterogeneity and achievement were not statistically significant. In Sample 2, negative effects of teacher-reported emotional exhaustion and teaching-related anxiety on consensus were observed for several dimensions. Teaching-related enjoyment had no effect.  相似文献   
27.
Head Start is the largest early childhood education program in the US. Echoing patterns emerging in ECE world-wide, Head Start has dramatically changed. Greater emphasis is now placed on kindergarten readiness, child and teacher assessment, professionalization, and increased competition for program funding. Drawing on a mixed methods research design, a case study was conducted that explores the nature and effects of these changes on teachers and the work of teaching within Head Start. Strong evidence of work intensification was found, a topic little explored within the wider ECE literature. In the light of this finding the authors question the model of professionalism that now dominates ECE reform.  相似文献   
28.
高职院校"双师型"教师队伍建设是提高高职学生培养质量的关键。高职院校"双师型"师资队伍的建设有培养双重能力、引进兼职教师、实施入职认证三种思路,相应地有"双师素质培养"、"双师结构构建"和"双师资格认证"三种建设模式。高职院校"双师型"教师队伍建设应把握这三种建设模式的实施要点,建立职业教育教师专业标准,实施高职教师资格认证准入制度。  相似文献   
29.
“以学生为本”创新高职教学质量评价方法   总被引:2,自引:0,他引:2  
高职教育创新教学质量评价方法具体表现在以下三方面:一要体现"以学生为本"的教学评价理念;二要构建完善的教学质量监控系统;三要改革教学质量评价指标设计方案。  相似文献   
30.
引企入校,开展工学结合教育工作是高职培养面向生产、建设、服务和管理第一线高技能人才的重要环节。目前高职教育在引企入校的过程中出现了各种问题,造成引企入校合作流于形式,合作质量不高。其原因在于,高职院校引企入校前,没有建立较完善的质量监控体系,而构建此体系才是解决问题的良方。  相似文献   
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