论综合实践活动课程开发的自然维度

综合实践活动课程是基于现实世界视野对生活的探究与体验,自然世界本身成为课程.超越对自然的役用与膜拜,走向对自然的理解、欣赏与看护,是综合实践活动自然维度开发的基本原则."在自然中"的自然探究、"关于自然"的自然探究和"为了自然"的自然探究是综合实践活动自然维度开发的基本内容.此外,在开发的过程中尚须注意季节的变化、在自然探究中渗透人文精神并引导学生慎重对待探究结论.     

统整探究创新——析人教版《历史与社会》九年级教科书

如何体现综合性、探究性、分析性和选择性是人教版《历史与社会》九年级教科书的基本要求,如何从功能和结构上实现教科书内容的整合,发挥综合课程的特效是编写本书的难点。为此,人教版教科书采取了不同以往的教科书编写策略,选取综合的主题、少而精的案例、跨学科的内容,以综述课文与专题探究相结合的组织方式、以“内容活动化,活动内容化”的编写风格、以注重学习方法和能力的价值取向,探讨“我们面对的机遇与挑战”,力图建构“有丰富意义的、统整的、有挑战性和主动性”并适合中国国情的综合文科课程。     

基于工作单的科学探究能力评价的有效性研究

分别用现场观察和工作单来评价178名初三学生的科学探究能力,以研究工作单对现场观察的替代性,即工作单对科学探究能力评价的有效性。研究发现,工作单的三个探究任务,甚至一个探究任务,或工作单三个探究任务的进行实验要素集合、概括结论要素集合能替代现场观察等。这些发现表明了工作单能有效替代现场观察,意味着工作单能有效评价科学探究能力。     

两类教材对初中生数学推理技能影响的比较研究

使用两类教材的初中生的数学推理技能存在显著差异;使用两类教材的初中生的演绎推理技能存在显著差异;使用两类教材的初中生的合情推理技能没有显著差异。《标准》应坚持"演绎推理与合情推理并重"的思想;对推理能力的定位应更加明确。教材的编写要使形式和内容统一。在教学中要坚持演绎推理与合情推理并重的思想。     

Cross-Cultural Adaptation and Psychometric Properties of the Portuguese Version of the Life Skills Scale for Sport

ABSTRACT

This research adapted the Life Skills Scale for Sport (LSSS) into Portuguese and provided evidence for its construct validity. Study 1 included four translators and five academics who developed a Portuguese version of the LSSS (P-LSSS). During this study, evidence for the content and substantive aspects of construct validity was provided using an expert panel and 25 sports participants. Study 2 included 413 participants that completed the P-LSSS. Within this study, evidence for the structural aspect of construct validity was provided via factor analyses. Study 3 included 134 participants who completed the P-LSSS and a measure of motivation. This study provided evidence for the external aspect of construct validity, with results showing more self-determined motivation had positive relationships with participant’s life skills development. Overall, our findings provided evidence for the construct validity of P-LSSS scores. Researchers and practitioners can use the P-LSSS to assess life skills development within sports participants.     

写作智慧内涵及构成刍议

建构写作智慧体系是写作教学的出发点和归宿。建构写作智慧体系,需要整合五个方面的内容:传递写作知识、提升认识智慧、传导认知策略、培养写作技能、传授写作策略。     

论当前高师美术教育色彩课的几个授课环节

色彩课是高师美术教育的重要组成部分,为了突出学科特点,在授课过程中必须把握好授课环节,紧紧围绕培养学生的综合能力来进行强化训练,以达到最终教学目的。     

Mediating effects of resistance training skill competency on health-related fitness and physical activity: the ATLAS cluster randomised controlled trial

The purpose of this study was to examine the mediating effect of resistance training skill competency on percentage of body fat, muscular fitness and physical activity among a sample of adolescent boys participating in a school-based obesity prevention intervention. Participants were 361 adolescent boys taking part in the Active Teen Leaders Avoiding Screen-time (ATLAS) cluster randomised controlled trial: a school-based program targeting the health behaviours of economically disadvantaged adolescent males considered “at-risk” of obesity. Body fat percentage (bioelectrical impedance), muscular fitness (hand grip dynamometry and push-ups), physical activity (accelerometry) and resistance training skill competency were assessed at baseline and post-intervention (i.e., 8 months). Three separate multi-level mediation models were analysed to investigate the potential mediating effects of resistance training skill competency on each of the study outcomes using a product-of-coefficients test. Analyses followed the intention-to-treat principle. The intervention had a significant impact on the resistance training skill competency of the boys, and improvements in skill competency significantly mediated the effect of the intervention on percentage of body fat and the combined muscular fitness score. No significant mediated effects were found for physical activity. Improving resistance training skill competency may be an effective strategy for achieving improvements in body composition and muscular fitness in adolescent boys.     

Dribbling determinants in sub-elite youth soccer players

Dribbling speed in soccer is considered critical to the outcome of the game and can assist in the talent identification process. However, little is known about the biomechanics of this skill. By means of a motion capture system, we aimed to quantitatively investigate the determinants of effective dribbling skill in a group of 10 Under-13 sub-elite players, divided by the median-split technique according to their dribbling test time (faster and slower groups). Foot-ball contacts cadence, centre of mass (CoM), ranges of motion (RoM), velocity and acceleration, as well as stride length, cadence and variability were computed. Hip and knee joint RoMs were also considered. Faster players, as compared to slower players, showed a 30% higher foot-ball cadence (3.0 ± 0.1 vs. 2.3 ± 0.2 contacts · s^?1, P < 0.01); reduced CoM mediolateral (0.91 ± 0.05 vs. 1.14 ± 0.16 m, P < 0.05) and vertical (0.19 ± 0.01 vs. 0.25 ± 0.03 m, P < 0.05) RoMs; higher right stride cadence (+20%, P < 0.05) with lower variability (P < 0.05); reduced hip and knee flexion RoMs (P < 0.05). In conclusion, faster players are able to run with the ball through a shorter path in a more economical way. To effectively develop dribbling skill, coaches are encouraged to design specific practices where high stride frequency and narrow run trajectories are required.     

高职市场营销专业职业技能培养的思考

高职市场营销专业职业技能培养目标应体现出实用性，职业技能教学要突出训练性，职业技能考核要体现开放性，这样才能更好地体现出高职的教育特色，有利于学生职业技能的形成。