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En este trabajo se parte del supuesto de que el uso de recursos gráficos, además de ser positivo, está creciendo continuamente en la enseñanza. Con el fin de facilitar la utilización de recursos gráficos en la realización de transparencias, mapas mentales, mapas conceptuales, resúmenes, etc., se proponen unas reglas básicas que constituyen en sí mismas un lenguaje gráfico 相似文献
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Eleazar Vasquez III Angel Lopez Carrie Straub Selma Powell Tracy McKinney Zachary Walker Tiphanie Gonzalez Timothy A. Slocum Lee Mason Breda V. Okeeffe Peña L. Bedesem 《Learning disabilities research & practice》2011,26(2):84-93
Ethnic minority disproportionality has been a topic of extensive discussion and research for many years. In 1997, Artiles, Trent, and Kuan conducted a seminal review of the special education research literature to identify how often researchers report and disaggregate data in ways that would support conclusions about specific ethnic minority groups. These authors found alarmingly low rates of publication on identifiable minority groups. The purpose of this review is to replicate the work of Artiles et al. and extend this literature analysis to the subsequent 15‐year period (1995–2009). We found increases in the proportion of articles reporting ethnic minority information 15 years following the Artiles et al. publication. Discussion focuses on the gap in our knowledge of evidence‐based practices for ethnic minority students in special education. 相似文献
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Thiago Telles Renato Barroso Pedro Figueiredo Diego Fortes de Souza Salgueiro João Paulo Vilas-Boas Orival Andries Junior 《Journal of sports sciences》2017,35(9):906-911
Hand paddles and parachutes have been used in order to overload swimmers, and consequently increase the propulsive force generation in swimming. However, their use may affect not only kinematical parameters (average speed, stroke length and stroke rate), but also time gaps between propulsive phases, assessed through the index of coordination (IdC). The objective of this study was to assess the effects of hand paddles and parachute use, isolated or combined, on kinematical parameters and coordination. Eleven swimmers (backstroke 50-m time: 29.16 ± 1.43 s) performed four 15-m trials in a randomised order at maximal intensity: (1) without implements (FREE), (2) with hand paddles (HPD), (3) with parachute (PCH) and (4) with hand paddles plus parachute (HPD+PCH). All trials were video-recorded (60 Hz) in order to assess average speed, stroke rate, stroke length, five stroke phases and index of coordination. When average swimming speed was compared to FREE, it was lower in PCH and HPD+PCH, and higher in HPD. Stroke rate decreased in all overloaded trials compared to FREE. The use of hand paddles and parachute increased and decreased stroke length, respectively. In addition, propulsive phase duration was increased when hand paddles were used, and time gaps shifted towards zero (no time gap), especially when hand paddles were combined with parachute. It is conceivable that the combined use of hand paddles and parachute, once allowing overloading both propulsive and resistive forces, provides a specific stimulus to improve muscle strength and propulsive continuity. 相似文献
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道德规范与图书馆事业 总被引：1，自引：0，他引：1
美国图书馆协会的《职业道德规范声明》提出了以图书馆事业为中心的具体原则,其《图书馆权利法案》则明确了图书馆的责任和义务。目前,美国社会和政治环境的变化为图书馆职业带来了越来越多的忧虑和压力。"9·11"后出台的《爱国者法案》明显与图书馆职业道德规范中所阐述的重要原则相冲突。因此,美国图书馆协会决心抵制《爱国者法案》对知识、信息自由开放以及行使个人隐私权的限制。 相似文献
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像一只踏入地中海的靴子,意大利这个国家就如它的地形一样,注定妖娆多姿.
在意大利,现代风情与古老文明并存.作为文艺复兴的发源地,意大利拥有无数艺术、文学大师和经典作品.作为当代时尚潮流集中地,意大利又聚集了全世界最多的高级品牌. 相似文献