中学化学教学中非智力因素的培养     

黄炜 《荆州师专学报》1999,22(2):91-94

结合化学学科特点,从动机,兴趣,情感三个方面探在中学化学教学中培养非智力因素的途径。  相似文献   

以办学理念引领学校整体变革的校本探索     

黄炜 《中小学管理》2023,(11):38-40

为破解办学困境,广东省广州市花都区新华街云山学校以“多彩云山”办学理念为引领,探索学校整体变革的校本化路径。一是凝聚众智确立办学理念,依托“人人表达”和多元主体议事决策机制,将办学愿景植入师生心中,引领师生同向同行;二是在构建“育彩”全课程体系的基础上,着力打造劳动课程、德育课程、研学实践课程等特色课程,在满足学生多元成长需求的同时提升了办学品质;三是通过专业引领,以高质量教师队伍推动学校可持续发展。  相似文献   

Prevalence and correlates of physical fitness testing in U.S. schools--2000     

Morrow JR  Fulton JE  Brener ND  Kohl HW 《Research quarterly for exercise and sport》2008,79(2):141-148

Because of the perceived lack of youth physical fitness and/or concerns for increased obesity, physical education teachers are interested in youth fitness and physical activity levels. Statewide mandates are being developed that require school-based teachers to complete physical fitness testing. Data from the nationally representative School Health Policies and Programs Study 2000 were analyzed to investigate the prevalence of fitness testing and the professional characteristics of fitness test users. Data were collected with teachers of either randomly selected classes in elementary schools and randomly selected required physical education courses in middle/junior high and senior high schools (N = 1,564). The prevalence of fitness test use is 65% across all school levels. Variables associated with physical fitness test usage were professionally oriented. Results showed that teachers in secondary schools (odds ratio [OR] = 2.25, 95% confidence interval [CI] = I.18-4.27), those with degrees in physical education/kinesiology-related disciplines (OR = 2.01, 95% CI = 1.11-3.63), and those who had completed staff development on physical fitness testing (OR = 3.22, 95% CI = 1.86-5.60) were more likely than respondents without these characteristics to engage in physical fitness testing. Results changed little when separate analyses were conducted for classes/courses in districts requiring versus not requiring fitness testing. Financial variables, including fitness-oriented facilities available, metropolitan location, and discretionary expenditures per student, were not associated with fitness test use. Results provided national prevalence of school-based physical fitness testing use in the U. S. and conveyed information about those who currently use physical fitness tests.  相似文献   

后奥运时代中国体育发展走向的社会学分析   总被引：2，自引：1，他引：1  

郭卫  黄炜 《西安体育学院学报》2008,25(3):37-41

归纳和分析了两种不同理论视野下的体育发展走向观点,分类讨论影响后奥运会时代中国体育发展的基本力量,并对"日、韩经验"进行了社会学思考与审视,从价值取向、战略调整、管理体制三个层面对奥运会后中国体育发展的基本走向进行较为系统的预测.  相似文献   

Changes in the perception of action possibilities while climbing to fatigue on a climbing wall     

Pijpers JR  Oudejans RR  Bakker FC 《Journal of sports sciences》2007,25(1):97-110

In two experiments we examined changes in the perception of action possibilities as a function of exertion. In Experiment 1, participants repeatedly climbed on a climbing wall in a series of trials that progressively increased in number to 10 trials, resulting in increased exertion. Before and during climbing, the participants judged their maximum reaching height and perceived exertion. On a separate day, participants climbed another 10 trials while performing actual maximum reaches. Higher perceived exertion was associated with decreases in perceived maximum reach while the actual reaches did not decrease. However, the perceptual changes occurred early during task execution when the participants were not yet fatigued. When exertion set in, neither perceived nor actual maximum reaching appeared to be affected. In Experiment 2, we included exhaustion trials. The findings replicated the early changes in perception observed in Experiment 1, which may be explained by hands-on experience with the task. Furthermore, while climbing to exhaustion, perceptual judgements largely changed in keeping with changes in the actual maximum reach. Thus, there appeared to be a functional relationship between participants' actual action capabilities, rather than their state of physical fatigue per se, and perceived action possibilities.  相似文献   

Construct validity evidence for single-response items to estimate physical activity levels in large sample studies   总被引：1，自引：0，他引：1  

Jackson AW  Morrow JR  Bowles HR  FitzGerald SJ  Blair SN 《Research quarterly for exercise and sport》2007,78(2):24-31

Valid measurement of physical activity is important for studying the risks for morbidity and mortality. The purpose of this study was to examine evidence of construct validity of two similar single-response items assessing physical activity via self-report. Both items are based on the stages of change model. The sample was 687 participants (men = 504, women = 183) who completed an 8-response (PA8) or 5-response (PA5) single-response item about current level of physical activity. Responses were categorized as meeting or not meeting guidelines for sufficient physical activity to achieve a health benefit. Maximal cardiorespiratory fitness (CRF) and health markers were obtained during a clinical examination. Partial correlation, multivariate analysis of covariance, and logistic regression were used to identify the relations between self-reported physical activity, CRF, and health markers when controlling for gender and age. Single-response items were compared to a detailed measure of physical activity. Single-response items correlated significantly with CRF determined with a maximal exercise test on a treadmill (PA8 = .53; PA5 = .57). Differences in percentage of body fat and cholesterol were in the desired direction, with those self-reporting sufficient physical activity for a health benefit having the lower values. The single-response items demonstrated evidence of construct validity and may provide feasible, cost-effective, and efficient methods to assess physical activity in large-scale studies.  相似文献   

弹幕视频网站用户持续使用行为的影响因素及其可解释性分析——基于感知价值的视角     

李伟卿  汪文涛  黄炜  张瑞 《现代情报》2023,(12):63-72

[目的/意义]视频被广泛使用在各种网络应用中，研究弹幕视频网站用户持续使用行为的影响因素，具有重要的学术价值和商业价值。[方法/过程]本文使用Bilibili网站的视频特征数据和用户行为数据，构建多元线性回归及基于机器学习的SHAP可解释模型，从内容感知价值、情感感知价值和社会感知价值3个维度探讨视频用户持续使用行为的影响因素及其影响的重要性和正负性。[结果/结论]研究发现：点赞数量最大程度地代表了用户对于视频的内容感知价值，内容感知价值对用户持续使用行为影响总是最高；在粉丝数量中等偏高的up主(视频制作者)中，情感感知价值对用户持续使用行为影响较高，而在粉丝数量最高的up主中，社会感知价值对用户持续使用行为影响更高。  相似文献   

虚拟学术社区知识交流多智能体仿真演化研究     

张瑞  胡丽娜  黄炜 《现代情报》2023,(10):16-26

[目的/意义]探究虚拟学术社区内用户知识交流过程与关键影响因素，对推动科研合作和科学发展具有重要的理论与实践意义。[方法/过程]以后悔理论和演化博弈论为理论基础，将社区环境和个性特征相关参数作为研究指标，利用Anylogic开发多主体仿真系统，描述不同情景下虚拟学术社区知识交流的演化过程。[结果/结论]研究发现，个人性格特征比例、知识交流成本和利益损失能显著改善社区知识交流参与人数，知识收益对促进社区知识交流稳定性具有积极作用，并针对仿真结果提出建议。后续研究可增加模型变量，优化量化方式，进一步提高模型的解释力。  相似文献   

中美网络兴趣型社区粉丝行为对比研究——基于扎根理论探索分析     

张瑞  涂凯  黄炜 《现代情报》2023,(8):54-65

[目的/意义]互联网流量时代，粉丝行为呈现出高度的参与性、互动性和组织性。为阐释粉丝行为及其背后的逻辑，探究跨文化差异，对中美网络兴趣型社区粉丝行为进行比较研究。[方法/过程]本文以篮球社区为例，获取虎扑社区和RealGM社区数据，基于扎根理论和社区文本挖掘技术，构建了包含参与行为、应援行为、抵制行为、骂战行为、饭圈用语使用行为与情感表达行为六大行为的粉丝行为体系，在编码分类基础上继续探究两大社区粉丝行为异同。[结果/结论]粉丝行为在范畴分布和主题内容上同时存在一致性和差异性，与新媒体平台引导、粉丝身份构成以及情感表达方式有极大关系。未来研究可进一步扩大实证研究范围，探究粉丝行为的形成机制。  相似文献   

经历有序思考 激发深度学习——“包装的学问”教学片断与思考     

黄炜 《小学数学教育》2023,(5):32-34

<正>“包装的学问”是北师大版五年级下册的一节综合实践活动课，要求学生综合应用表面积的知识解决如何节约包装纸的问题，体现了数学的优化思想，有助于学生提高解决问题的能力，体会数学与生活的紧密联系。在本节课的教学中，目标是要找到“四个长方体叠放成一个大长方体后表面积最小”的包装策略，要求学生枚举出四个长方体叠放成一个大长方体的所有方式。对学生而言，用枚举法找到最优策略的难点是找全所有的叠放方式。  相似文献