如何培养学生写数学日记的兴趣

＂数学日记＂就是学生以日记的形式,写在生活中用到数学的情况,当天数学课上学习的回顾和反思,课前预习,看到的数学现象,想到的数学问题,以及对老师的意见、建议等。     

“班级日记”作为高校班级管理新方法的初探

随着社会的发展和高等教育改革的不断深化,高校辅导员由最初单一的思想政治辅导员发展成为承担着教育、管理等多重任务的高校学生工作的主要力量。现实中,许多高校辅导员主要忙于繁琐的日常事务管理,把工作重心放在学生的日常管理和组织活动中,忽略了教育职责,导致他们往往对于学生心理、思想及个人成长方面的关注时间不够。而大学生则不太会主动向辅导员老师反映自身存在的困难或问题,不敢把心里话说出来。因此从辅导员工作实际出发,该文提出以“班级日记”的形式对班级学生进行教育管理。并从减轻辅导员工作负担、增强集体凝聚力、提高学生干部工作主动性及培养学生自我管理能力四个方面阐述了班级日记在班级管理工作中的成效。     

Agreement in activity energy expenditure assessed by accelerometer and self-report in adolescents: Variation by sex,age, and weight status

Abstract

The agreement between self-reported and objective estimates of activity energy expenditure was evaluated in adolescents by age, sex, and weight status. Altogether, 403 participants (217 females, 186 males) aged 13–16 years completed a 3-day physical activity diary and wore a GT1M accelerometer on the same days. Partial correlations (controlling for body mass) were used to determine associations between estimated activity energy expenditure (kcal · min^?1) from the diary and accelerometry. Differences in the magnitude of the correlations were examined using Fisher's r to z transformations. Bland–Altman procedures were used to determine concordance between the self-reported and objective estimates. Partial correlations between assessments of activity energy expenditure (kcal · min^?1) did not differ significantly by age (13–14 years: r = 0.41; 15–16 years: r = 0.42) or weight status (normal weight: r = 0.42; overweight: r = 0.39). The magnitude of the association was significantly affected by sex (Δr = 0.11; P < 0.05). The agreement was significantly higher in males than in females. The relationship between activity energy expenditure assessed by the objective method and the 3-day diary was moderate (controlling for weight, correlations ranged between 0.33 and 0.44). However, the 3-day diary revealed less agreement in specific group analyses; it markedly underestimated activity energy expenditure in overweight/obese and older adolescents. The assessment of activity energy expenditure is complex and may require a combination of methods.     

从胡适的一篇日记看他的图书馆学思想

在胡适一篇日记中反映出了胡适关于图书馆的重要性、图书馆应有独立馆舍、如何保证购书质量、怎样改善藏书结构、图书馆应对馆外读者开放以及聘什么样的人当馆长等问题,反映了胡适的图书馆学思想.     

生态习作何处寻

实现生态习作,教师要具备＂真实为美＂的习作评价观,采用写话、日记、随文习作等形式让学生深深体会到＂真实是习作的灵魂＂。     

论杜运燮四十年代诗歌创作中的“摄影主义”手法

九叶诗人杜运燮的创作有着鲜明的个人风格,其40年代的诗歌创作具有鲜明的现代意识和现代派的诗学特征,丰富了新诗的表现手法。其中,＂摄影主义＂这一手法的运用,对杜运燮诗歌风格的形成起到了重要作用,也从另一角度发掘出这一手法所包孕的积极的诗艺可能性。     

Development of a golf-specific load monitoring tool: Content validity and feasibility

Athletes often record details of their training and competitions, supported by information such as environmental conditions, travel, as well as how they felt. However, it is not known how prevalent these practices are in golfers, or how valuable this process is perceived. The purpose of this study was to develop a golf-specific load monitoring tool (GLMT), and establish the content validity and feasibility of this tool amongst high-level golfers. In the first phase of development, 21 experts were surveyed to determine the suitability of items for inclusion in the GLMT. Of the 36 items, 21 received >78% agreement, a requirement to establish content validity and for inclusion in the GLMT. Total duration was the preferred metric for golf-specific activities, whilst rating of perceived exertion (RPE) was preferred for measuring physical training. In the second phase, feasibility of the tool was assessed by surveying 13 high-level male golfers following 28-days of daily GLMT use. All items included in the GLMT were deemed feasible to record, with all players participating in the feasibility study providing high to very high ratings. Golfers responded that they would consider using a load monitoring tool of this nature long term, provided it can be completed in less than five minutes per day.     

提高学生的作文水平应从观察力的培养入手

引导学生观察,首先要激发学生的观察热情,做生活的有心人。其次要让学生明白观察不是泛泛地“看看”,而是仔细地“审视”。最后学会把观察到的内容积累下来,这样才能厚积而薄发,稳步提高学生们的观察水平。     

没有想象力就没有创造力

美国的亚历斯．奥斯本博士在他所著的《我是最懂创造力的人物》一书的封底有这么一句话：“强大的美国来自于想象力和创造力”。法国伟大作家雨果说“想象就是深度。没有一种精神机能比想象更能自我深化,更能深入对象,这是伟大的潜水者。科学到了最后阶段,便遇上了想象。”     

液压叠加式力标准机力值重复性、示值误差和长期稳定性观测与思考

文章以500k N液压方式叠加机作为验证机和研究平台,根据其力值重复性、示值误差和长期稳定性指标优于0.0086%(突破规程0.03级的极限,挑战现有理论模式)的检测数据,评估其不确定度,指出现检定规程存在的问题,坚持以0.01%精度为深入研究的切入点,寻找减小不确定度分量的方法,提出完善高精度叠加机计量传递链的部分改进思路。