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61.
本文结合高校国际关系史教学实践和基本内容,阐述了高校国际关系史教学中需要把握的两个基本原则:第一,运用国际关系理论的研究成果来分析国际关系的发展和演变;第二,用国际关系体系的演变来串联近现代国际关系史。  相似文献   
62.
The study examined the efficacy of an intensive form of professional development (PD) for building the knowledge of first-grade teachers in the areas of phonological awareness and phonics. The PD featured frequent in-class support from highly knowledgeable mentors for one school year, in addition to an introductory two-day summer institute and monthly workshops. Pre- and post-assessment of participants on a Teacher Knowledge Survey (TKS) indicated weak knowledge of phonological awareness and phonics concepts prior to PD and large, significant gains in each area by year-end. In addition, to investigate factors potentially associated with teachers’ responses to training, a Teacher Attitude Survey (TAS) was administered before and after the PD. The TAS measured teachers’ attitudes regarding PD, external and internal motivation to participate, intentions to actively engage in learning and implementing new instructional methods, sense of self-efficacy as reading instructors, and premises about reading instruction (e.g., about whole language). Attitudes on a subset of these factors, teachers’ initial knowledge scores on the TKS, and years of teaching experience (estimated by age) accounted for significant portions of the variance in performance on the TKS after training.
Susan BradyEmail:
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63.
The literature suggests that radical changes to teacher education are common but rarely well-planned or resourced. Such changes can be detrimental to the quality of learning and it is challenging for educators to know how to respond. Joseph Schwab argued that for balanced curriculum development to occur, deliberation must take place with the four commonplaces (teachers, learners, subject matter and milieu). In this study, three teacher educators in a research intensive university in New Zealand were forced to combine three distinct courses (Health, Outdoor and Physical Education) into one course. Concerned that student learning would be compromised, we embarked on a series of deliberations informed by Schwab’s ideas. The deliberations involved meeting regularly over six months, inviting representatives from the commonplaces (program leaders, pedagogical specialists, pre-service teachers and teachers) into our deliberations and reflecting on the process. Analysis revealed that our deliberations could be characterized by phases: (1) creating the necessary conditions, (2) the problem emerges, (3) the solution emerges, (4) evaluation and (5) beyond deliberation. These phases of deliberation were distinguished by different concerns and timeframes and roughly reflected the stages of deliberation identified by Schwab. Convergence and divergence from Schwab’s stages are discussed. While much of Schwab’s work on deliberation remains relevant today, we recommend the addition of an initial phase focused on establishing a collaborative basis at the beginning of the process. We found this phase not only generated respect and care amongst the collaborators, but also helped frame the problem and enabled new solutions to emerge.  相似文献   
64.
65.
网络信息服务业的竞争态势及图书馆的竞争策略   总被引:5,自引:1,他引:5  
对当前国内网络信息服务市场中市场主体的多元竞争格局、各类市场参与者的竞争特征进行全面分析,指出在现有竞争态势下,图书馆应协调好与其他竞争主体的关系,依照合作竞争、互惠互利的原则,在对全行业的信息资源进行高度整合的基础上形成核心竞争力,以整合后的特色数据库群形成对网络信息服务的细分化市场的全面覆盖,充当网络信息服务市场的信息服务提供零售商,并依此进行市场定位,谋求整个行业的持续发展。  相似文献   
66.
为了提高实验教学质量,从硬件建设、软件建设和实验教学管理等几方面进行了探讨,提出相关措施与办法。  相似文献   
67.
在多年的教学实践和理论研究的基础上,根据多次试验及学生的反应,总结出《高等数学》—全微分一节可以采用问题教学法和发现法来组织教学,从而可以培养学生的学习兴趣,提高记忆品质,提高课堂学习效率.本文首先从教育数学看教学方法研究的重要性;其次简介问题教学法和发现法;最后以教学案例具体说明采用问题教学法和发现法的实施办法.  相似文献   
68.
大鼠感染卡氏肺孢子虫后血清中10种酶测定结果分析   总被引:3,自引:0,他引:3  
目的:卡氏肺孢子虫肺炎(PCP)是获得性免疫缺陷综合征(AIDS)等免疫损害宿主最常见的呼吸系统感染性疾病,其发病机制仍未完全清楚.研究大鼠卡氏肺孢子虫感染后血清中酶学指标的变化,并观察大鼠肺脏、肝脏的病理变化及肺泡内的PC,探索PCP的发病机制.方法:用清洁级雌性wister大鼠50只,体重220~260g.随机分正常对照组(N组)、卡氏肺孢子虫肺炎组(PCP组)、复方新诺明治疗组(SMZ组).PCP组、SMZ组饮含0.5g/L盐酸四环素的冷开水抗细菌感染,N组饮冷开水.PCP组、SMZ组每周2次皮下注射地塞米松,每次25mg/kg体重,N组皮下注射相同体积的注射用水.从第3周开始,对SMZ组进行复方新诺明灌胃治疗,用量为250mg/kg.d,5d为一疗程,以后每隔2周灌胃一个疗程.第12周剖杀,心脏采血,测定血清中γ-谷氨酰转移酶(γGT)、总胆汁酸(TBA)、胆碱脂酶(ChE)、肌酸激酶(CK)、肌酸激酶同工酶(CKMB)、羟丁酸脱氢酶(HBDH)、淀粉酶(AMY)、α-L-岩藻糖苷酶(AFU)、5'核苷酸酶(5'NT)、腺苷脱氨酶(ADA).结果:PCP组TBA比N组显著降低(P<0.05),CK、CKMB、HBDH、AMY、ADA比N组极显著降低(P<0.01),而AFU比N组显著升高(P<0.01);SMZ组TBA、CHE、CKMB、ADA比N组显著降低(P<0.05),CK、AMY比N组极显著降低(P<0.01),而ALA比N组极显著升高(P<0.01);CKMB、HBDH在PCP组与SMZ间且有极显著性差异(P<0.01).结论:酶学变化反映了大鼠在感染卡氏肺孢子虫后,机体肺组织发生炎症变引起血清酶(TBA、ChE、CK、CKMB、HBDH、AMY、AFU、ADA)含量显著变化,而血清酶γGT、5'NT与正常对照比较无显著性差异(P>0.05).  相似文献   
69.
目的:研究吴茱萸提取物清除羟自由基(·OH)和超氧阴离子自由基(·02^-)的作用。方法:用硫酸亚铁和过氧化氢反应产生·OH;用邻苯三酚自氧化法产生·O2^-用分光光度法测定吴茱萸正丁醇提取物1、正丁醇提取物2和乙醚提取物对·OH和·O2^-的清除作用。结果:三种提取物及Vc清除·0H的IC50分别为145.0、141.0、335.0、2.3μg·mL^-1;正丁醇提取物1清除·O2^-的作用无法测定,吴茱萸正丁醇提取物2、乙醚提取物及Vc清除·O2^-的IG50分别为270.0、0.185、0.0575μg·mL^-1结论:本研究中的三种吴茱萸提取物均有一定的抗氧化作用并呈量效关系。吴茱萸脂溶性成分清除·O2^-的作用非常显著,与Vc有相似作用。  相似文献   
70.
Background: School teachers who become teacher educators (TEs) are rarely prepared for the different pedagogies that teacher education requires. One pedagogical difference is the need for TEs to make their thinking and decisions explicit to pre-service teachers (PSTs) so PSTs can see teaching as an adaptive process rather than a set of routines to be memorised.

Purpose: This research set out to analyse my learning about teaching teachers through making my decisions and thinking explicit to my PSTs.

Participants and data collection: Using a self-study of teacher education practice (S-STEP) methodology, I collected data during an outdoor education course in a physical education (PE) degree. Participants included a convenience sample of six participating PSTs (of a cohort of 24) who participated in four interviews and two group interviews. Three critical friends observed five lessons and participated in interviews. In addition, self-generated data consisted of 104 written reflective journal entries (both private and open). Lessons were video-recorded to assist with reflection.

Data analysis: Utilizing Schön’s concepts of reflection for, in and on action, I sought out contrary perspectives in order to frame and reframe my understanding of TE practice. I then presented these new understandings to other participants for further development.

Findings: My learning about teaching teachers can be represented as swinging between opposite extremes of infatuation and disillusionment. After observing my teaching, a critical friend identified that my physical position (or how I placed myself in the group) affected PST engagement in discussions. As I explored this aspect of my teaching further, I became very focused on the influence of my physical position to the point of infatuation. My infatuation stage culminated in a reflection-in-action moment when I changed my position in the act of teaching, which appeared to significantly increase PST engagement. But the PSTs challenged my interpretation and stated that inequalities of power cannot be resolved by rearranging where a teacher stands. In this second stage, I experienced a strong sense of disillusionment, even cynicism. As a TE, I felt any actions I took were pointless against the power structures of society. Later, with insights from participants, I developed a more nuanced understanding of power and position; while not a panacea, how I arranged myself and the class physically did have some influence on the flow of discussions.

Conclusions: S-STEP requires that researching practitioners challenge their assumptions. In making my own learning about my teaching explicit to my PSTs and critical friends, I was able to frame and reframe my understandings about teaching teachers. Through this research, I discovered that I learnt about my teaching by swinging between extremes. I argue that thinking about teaching informed by extreme positions, provides a fuller purview of the complexity of teaching teachers. S-STEP in conjunction with explicit teaching practices offers TEs a tangible means to understand our practices more deeply and furthermore, to advance our understanding of teacher education more broadly.  相似文献   

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