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1.
缪仁票 《生物学通报》2005,40(12):35-36
近10年高中生物学概念的教学,对概念的如何引入、形成、巩固和深化有了一定的研究;前概念的剖析和概念图的运用,以及在认知同化学习和建构主义学习等理论指导下的概念教学模式的探讨.已开始受到人们关注;但几乎尚未涉及概念所负载的方法、蕴涵的价值和体现的科学素养。  相似文献   

2.
众所周知,概念是人们对一个事物本质上的概括,要想了解一个事物必须得从它的概念出发,学习生物也是如此,概念是基础,只有把书本上的概念把握好,才能更深层次的去学习生物知识。往往学生在思考问题的时候出现一些错误的判断、理解等现象时,一大部分原因都是由于概念不明确引起的,所以在高中生物教学中概念的教学显得尤其的重要,可是概念往往是抽象难以理解的,那么我们如何才能将抽象难懂的概念清晰的灌输给学生呢?本文是我对高中生物概念教学的一些看法和建议。  相似文献   

3.
绘制概念图的过程是学生对所学的概念进行重排、组织和转换的过程,它可以帮助学生把握主题的核心内容进而促进生物学重要概念的形成。以"蛋白质"一节为例,介绍采用概念图的策略帮助学生形成重要概念的具体方法。  相似文献   

4.
对生物学概念的含义、类型、获得方式(概念同化,概念形成)进行了研究,并在此基础上提出了概念教学的基本策略。  相似文献   

5.
构建概念是生物学教学的核心任务之一。以聚焦重要概念“细胞的功能绝大多数基于化学反应,这些反应发生在细胞的特定区域”的单元教学为例,通过借助科学史的探究与验证功能、历经问题串的交流与探讨、开展猜想与实证环节、分析或进行探究性实验等多元策略,促成概念的动态生成,为生物学教师提供参考。  相似文献   

6.
针对初中学生学习"肺通气"的难点,引导学生在体验生命现象的基础上,通过模型构建、模拟实验等形式,认识肺通气的结构基础,理解肺通气的物理学原理,以达成"肺通气"概念的自主构建。  相似文献   

7.
冷小荣 《生命世界》2010,(1):102-102
随着科学技术的发展和经济多元化,对人才结构的要求出现新的趋势,创新精神和实践能力成为衡量人才质量的最瞩目的标志。而概念图的教学方式,在很大程度上强化了学生的创新意识,是培养学生创新能力的一个具体途径。在具体的教学过程中,我是这样处理的:  相似文献   

8.
有效教学或课堂教学效率,是教学追求的永恒目标。随着新课改发展,提高课堂教学效率已成为现代教学的一个重要理念,本文试结合高中生物学科教学谈谈对有效教学及其策略的理解与运用。  相似文献   

9.
跨学科概念是对理科知识共通性的高度归纳,可以强化对学科核心概念的理解,因此进行跨学科概念融入学科教育的研究非常重要.分别通过跨学科概念要素比较、跨学科概念要素的分类与筛选、跨学科概念与高中生物学的关联性的研究,以及跨学科概念与高中生物学课程具体内容的对应的研究,力图回答跨学科概念能否融入高中生物学课程内容的问题,为跨学科概念融入我国高中生物学教育进行基础性的探索.  相似文献   

10.
概念是逻辑思维的基本单位,它具有高度的抽象性和概括性,概念教学是中学生物学教学的重要任务和核心内容.但实际上,学生要掌握生物学概念存在着困难.需要教师通过多种方法让学生成为概念构建的主体,引导学生认识到生物学概念建立及完善的必要性与必然性,并进而帮助学生理解、掌握并运用相关的生物学概念.  相似文献   

11.
12.
Alexander Rosenberg recently claimed (1997) that developmental biology is currently being reduced to molecular biology. cite several concrete biological examples that are intended to impugn Rosenberg's claim. I first argue that although Laubichler and Wagner's examples would refute a very strong reductionism, a more moderate reductionism would escape their attacks. Next, taking my cue from the antireductionist's perennial stress on the importance of spatial organization, I describe one form an empirical finding that refutes this moderate reductionism would take. Finally, I point out an actual example, anterior-posterior axis determination in the chick, that challenges the reductionist's belief that all developmental regularities can be explained by molecular biology. In short, I argue that Rosenberg's position can be saved from Laubichler and Wagner's criticisms and putative counter-examples, but it would not survive a different kind of counter-example.  相似文献   

13.
生物学教学中引入概念图策略的实验研究   总被引:13,自引:3,他引:13  
在一些国家,概念图作为有意义学习的一种有效策略已广泛研究和应用。以高中学生为研究对象,以概念图作为教与学的策略,研究了在生物学教学中使用概念图策略对于提高高中学生生物学学业成绩的效果。  相似文献   

14.
刘莹莹  卜宁  卢元 《生物工程学报》2019,35(12):2269-2283
无细胞合成生物系统,能够在体外完成生命转录翻译过程,因体系灵活开放、便于控制、表达周期短、高耐受性等特点,可表达细胞系统难以表达的蛋白质。随着无细胞生物传感和体系冻干技术的不断发展,其在医药健康领域的应用不断拓展。本文综述了无细胞合成生物学在按需生物医药合成和便携式医疗检测等医药健康领域的研究进展,该体系的进一步发展有潜力实现更复杂后修饰蛋白质药物的合成、可丰富无细胞生物传感器类型并提高其灵敏性。无细胞合成生物学作为新兴工程策略,未来必将更好地应用于高通量医药蛋白质筛选、新型病原体的检测等医药健康领域。  相似文献   

15.
钟能政 《生物学杂志》2012,29(4):108-110
结合教学案例,提出下列策略来解决高中生物学教学中"内容多"与"课时少"矛盾:规划好模块的整体教学计划;制定详细、具体、可检测的教学目标,同时教学时要突出主要目标;设计好学生"学"的活动;处理好高中初中生物学教学和不同模块教学的衔接。  相似文献   

16.
浅谈生物学实验教学改革策略   总被引:1,自引:1,他引:1  
生物学实验教学具有重要地位和意义,针对当前实验教学存在问题,应从理念和实践两个层面采取有效策略来改革生物实验教学。如践行生物新课程实验标准,变验证性实验为探究性实验,着力培养学生创造性思维,重视实验课软硬件的建设与提升等。  相似文献   

17.
Resurgent interest in the genetics of population divergence and speciation coincides with recent critical evaluation of species concepts and proposals for species delimitation. An important result of these parallel trends is a slight but important conceptual shift in focus away from species diagnoses based on prior species concepts or definitions, and toward analyses of the processes acting on lineages of metapopulations that eventually lead to differences recognizable as species taxa. An advantage of this approach is that it identifies quantitative metapopulation differences in continuous variables, rather than discrete entities that do or do not conform to a prior species concept, and species taxa are recognized as an emergent property of population-level processes. The tension between species concepts and diagnosis versus emergent recognition of species taxa is at least as old as Darwin, and is unlikely to be resolved soon in favor of either view, because the products of both approaches (discrete utilitarian taxon names for species, process-based understanding of the origins of differentiated metapopulations) continue to have important applications.  相似文献   

18.
The concept of energy serves biologists as a powerful analytical model to describe phenomena that occurs in the natural world. Due to the concept’s relevance, educational standards of different countries identify energy as a core idea for the teaching and learning of biology and other science subjects. However, previous research on students’ energy understanding has mostly focused on physics contexts. This cross-sectional study extends insight to the field by providing a systematic analysis of students’ (N = 30, grades 5, 7, 9, 11) conceptions about energy in biological contexts. In order to connect the findings to previous research, the study analyses conceptions about four energy aspects that are regarded as central for understanding the concept in different disciplinary contexts, i.e. (1) energy forms/sources, (2) transfer/transformation, (3) degradation/dissipation and (4) energy conservation. The findings identify substantial changes in students’ conceptions about energy between the different grade levels, but also highlight conceptions that students consistently employed across age groups. The results are discussed in the light of previous research on students’ progressing energy understanding and the connection of their energy understanding across different disciplinary contexts. Lastly, the article provides implications for the further development of energy teaching in biological contexts.  相似文献   

19.
This microreview stems from the Second Symposium on Insect Molecular Toxicology and Chitin Metabolism held at Shanxi University in Taiyuan, China (June 27 to 30, 2017) at the institute for Applied Biology headed by Professor Enbo Ma and Professor Jianzhen Zhang.  相似文献   

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