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981.
982.
Two experiments explored the taxonomic organization of mental lexicons in deaf and hearing college students. Experiment 1 used a single-word association task to examine relations between categories and their members. Results indicated that both groups' lexical knowledge is similar in terms of overall organization, with associations between category names and exemplars stronger for hearing students; only the deaf students showed asymmetrical exemplar-category relations. Experiment 2 used verbal analogies to explore the application of taxonomic knowledge in an academically relevant task. Significant differences between deaf and hearing students were obtained for six types of analogies, although deaf students who were better readers displayed response patterns more like hearing students'. Hearing students' responses reflected their lexical organization; deaf students' did not. These findings implicate the interaction of word knowledge, world knowledge, and literacy skills, emphasizing the need to adapt instructional methods to student knowledge in educational contexts. 相似文献
983.
984.
"Do I need to know this for the exam?" Using popular media, inquiry-based laboratories, and a community of scientific practice to motivate students to learn developmental biology 下载免费PDF全文
One of the greatest challenges instructors face is getting students to connect with the subject in a manner that encourages them to learn. In this essay, we describe the redesign of our Developmental Biology course to foster a deeper connection between students and the field of developmental biology. In our approach, we created a community of scientific practice focused on the investigation of environmental impacts on embryonic development and informed by popular and scientific media, the students' own questions, and the instructor. Our goals were to engage students in meaningful ways with the material, to develop students' science process skills, and to enhance students' understanding of broad principles of developmental biology. Though significant challenges arose during implementation, assessments indicate using this approach to teach undergraduate developmental biology was successful. 相似文献
985.
650年前,那妖魔来了!在印第安的土地上!酋长闻到了浓烈的烟味,他尖叫着:“离开!快离开!往深山里跑啊!”所有的人都开始行动,人们看到草地在移动,空气中弥漫着焦味,大家只有用尽力气远离这个妖魔,因为没有什么武器可以抵御它!突然,妖魔捅破了地面,酋长知道自己根本不是它的对手,但他还是用长矛抵抗着,他要为他的族人留下宝贵的时间!渐渐地,酋长消失了……等到妖魔饱餐以后,回过头再寻找的时候,它才意识到,所有的人都已经远离了它的视线!酋长用自己的生命,为大家赢得了时间。妖魔狂叫着,异常愤怒!它抱怨自己太心… 相似文献
986.
There has been limited research into the intersection of language and arithmetic performance of students who are deaf or hard of hearing, although previous research has shown that many of these students are delayed in both language acquisition and arithmetic performance. The researchers examined the performance on arithmetic word problems of deaf and hard of hearing students in the South-East Queensland region of Australia; they also examined these students' problem-solving strategies. It was found that performance on word problems was similar for deaf and hearing students, but that deaf students experienced delays in achieving successful performance on word problems relative to their hearing peers. The results confirm the findings of other studies showing that students who are deaf or hard of hearing experience delayed language acquisition, which affects their capacity to solve arithmetic word problems. The study conclusions stress the need for greater use of direct teaching of analytic and strategic approaches to arithmetic word problems. 相似文献
987.
男孩和女孩在思维方面不尽相同。近日关于大脑活动的研究成果,证实这一论点是无可置疑的,再去否定它就不实事求是了。男女在社会中的平等,应该以承认这种大脑活动的差异为依据。目前,学校教育和一些测验都从不同的方面作出与男孩和女孩的实际情况相径庭的判断,对父母和教师已观察到的差异,视若无睹。在初级学校的教室里,男孩子在受罪,而那里, 相似文献
988.
Parental monitoring: a reinterpretation 总被引:43,自引:0,他引:43
989.
环境氡所致肺剂量影响因素的实验研究 总被引:1,自引:0,他引:1
在环境氡水平的房间内,研究各种处理空气的方法所引起室内α潜能浓度、平衡因子、非结合态氡子体份额和气溶胶粒子数目及其大小分布的变化.计算支气管基底细胞层、肺区上皮及总肺的单位氡浓度年当量剂量,并与封闭房间未经任何空气处置的情况比较,结果显示:用正离子加风扇对流时总肺剂量率减少最为明显;而空调通风,对支气管剂量率的减少最为有效;吸烟或施放油烟,肺剂量都明显增加,油烟的影响尤为严重. 相似文献
990.
Olsson A Ellsberg M Berglund S Herrera A Zelaya E Peña R Zelaya F Persson LA 《Child abuse & neglect》2000,24(12):1579-1589
AIMS: The objective was to describe experiences of sexual abuse occurring before 19 years of age among men and women in León, Nicaragua and to explore the possible association to later sexual risk behavior. METHOD: A sub-sample of literate urban men and women 25-44 years of age was selected from a representative sample of households in León. After an invitation to a public health event, 154 men (53% of the invited) and 213 women (66% of those invited) participated in giving written answers to an anonymous questionnaire. RESULTS: Twenty percent of men and 26% of women reported that they had experienced sexual abuse. Women had been victims of attempted or completed rape twice as often as men, 15% as compared to 7%. Thirty-three percent of the abuse towards boys and 66% of the abuse towards girls was committed by family members. Women who had experienced attempted or completed rape were more likely to later have had a higher number of sexual partners compared to non-abused or moderately abused women. CONCLUSIONS: Sexual abuse of children and adolescents of both sexes is common in Nicaragua. The results underscore the urgent need to address this serious problem more openly, and to make more resources available for the prevention of sexual abuse and for support to victims. 相似文献