全文获取类型
收费全文 | 158篇 |
免费 | 2篇 |
专业分类
教育 | 133篇 |
科学研究 | 1篇 |
体育 | 14篇 |
信息传播 | 12篇 |
出版年
2020年 | 3篇 |
2019年 | 6篇 |
2018年 | 5篇 |
2017年 | 5篇 |
2016年 | 5篇 |
2015年 | 7篇 |
2014年 | 7篇 |
2013年 | 34篇 |
2012年 | 7篇 |
2011年 | 3篇 |
2010年 | 2篇 |
2009年 | 2篇 |
2008年 | 4篇 |
2007年 | 4篇 |
2006年 | 3篇 |
2005年 | 7篇 |
2004年 | 14篇 |
2003年 | 9篇 |
2001年 | 4篇 |
2000年 | 1篇 |
1998年 | 3篇 |
1997年 | 2篇 |
1996年 | 1篇 |
1994年 | 1篇 |
1993年 | 2篇 |
1991年 | 2篇 |
1990年 | 2篇 |
1988年 | 2篇 |
1987年 | 2篇 |
1986年 | 2篇 |
1985年 | 2篇 |
1983年 | 1篇 |
1982年 | 1篇 |
1980年 | 1篇 |
1979年 | 1篇 |
1978年 | 1篇 |
1977年 | 1篇 |
1976年 | 1篇 |
排序方式: 共有160条查询结果,搜索用时 15 毫秒
11.
12.
Science & Education - Computational thinking is a contemporary science and engineering practice that has been introduced to the US science classrooms due to its emphasis in the Next Generation... 相似文献
13.
14.
15.
16.
As part of individual interviews incorporating whole number and rational number tasks, 323 grade 6 children in Victoria, Australia
were asked to nominate the larger of two fractions for eight pairs, giving reasons for their choice. All tasks were expected
to be undertaken mentally. The relative difficulty of the pairs was found to be close to that predicted, with the exception
of fractions with the same numerators and different denominators, which proved surprisingly difficult. Students who demonstrated
the greatest success were likely to use benchmark (transitive) and residual thinking. It is hypothesised that the methods
of these successful students could form the basis of instructional approaches which may yield the kind of connected understanding
promoted in various curriculum documents and required for the development of proportional reasoning in later years. 相似文献
17.
Questions about identity and future success often occupy the thinking of individuals during life transitions. Possible-selves theory describes how future-oriented thought provides identity-relevant information and motivation to pursue self-relevant goals. Expected and feared possible selves of beginning teachers (n = 221) were analyzed revealing four main categories (i.e., interpersonal relationships, classroom management, instruction, and professionalism). Differences between student and beginning inservice teachers suggest a transitional trajectory that could have implications for understanding the “how” of teacher identity development. Possible-selves theory may help bring a degree of unity across divergent frameworks and help link identity to broader issues of teacher development. 相似文献
18.
19.
20.
For the athlete training hard, nutritional supplements are often seen as promoting adaptations to training, allowing more consistent and intensive training by promoting recovery between training sessions, reducing interruptions to training because of illness or injury, and enhancing competitive performance. Surveys show that the prevalence of supplement use is widespread among sportsmen and women, but the use of few of these products is supported by a sound research base and some may even be harmful to the athlete. Special sports foods, including energy bars and sports drinks, have a real role to play, and some protein supplements and meal replacements may also be useful in some circumstances. Where there is a demonstrated deficiency of an essential nutrient, an increased intake from food or from supplementation may help, but many athletes ignore the need for caution in supplement use and take supplements in doses that are not necessary or may even be harmful. Some supplements do offer the prospect of improved performance; these include creatine, caffeine, bicarbonate and, perhaps, a very few others. There is no evidence that prohormones such as androstenedione are effective in enhancing muscle mass or strength, and these prohormones may result in negative health consequences, as well as positive drug tests. Contamination of supplements that may cause an athlete to fail a doping test is widespread. 相似文献