共查询到20条相似文献，搜索用时 660 毫秒
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陈晓龙 《新课程导学(上)》2014,(3)
生物教学的目的,是让学生在掌握生物知识和生物技能的同时,通过生物原理与生物实践的有效统一而形成对生物的本质认识,并将这种认识运用于现实生活中,使学生学会运用生物思想,感知生物魅力。 相似文献
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刘崇里 《试题与研究：高中理科综合》2021,(10)
生物教学作为高中阶段的重要学科,主要以研究生命现象和生命活动规律为主。在高中阶段开设生物教学,其最主要的目的在于为国家培养创新型人才。而高中阶段的生物教学主要的教学环节为生物实验。学生通过生物实验不但能提高生物实践能力,同时还能够提高生物的理论知识记忆,从而提升生物学习效率。本文通过分析生物实验对高中生物教学的实际意义,来制定适宜的教学策略,以此来培养学生的生物实验探究能力。 相似文献
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生物世界是多种生物的世界,多种生物的共同存在为人类提供了赖以生存的物质家园。一个区域物种的多少及物种的稳定程度,关系到维持该地域的生态稳定,关系到人与自然的和谐并持续健康发展。其实保护生物多样性的实质就是保护人类自己。下面,我就有关保护生物多样性的几个问题简要谈一谈。一、生物多样性生物多样性是指地球上所有的生物(动物、植物、微生物)以及这些生物的自然生态综合体。我们通常把生物多样性 相似文献
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王海燕 《连云港师范高等专科学校学报》2000,(2)
1 .生物教育与可持续发展教育1.1生物教育2 0世纪以前的生物教育 ,是人们通过观察 ,了解生物的外部形态、内部结构及生理特点 ,目的是让生物更好地为人类服务 (成为食物、运输工具、玩赏对象 ,用于防病冶病等 )。人类对生物的认识比较浮浅 ,主要通过个案研究来学习、掌握生物知识。2 0世纪以后 ,生物科学向两个方向发展 ,宏观方向是保护生物多样性 ,微观方向是分子生物学。由于人类生物知识的极大深化 ,生物教育的内容也出现了重大改变 ,它不仅教育人们如何合理地利用生物资源 ,而且教育人们如何尊重生物发展的自然规律。生物教育的范畴不只… 相似文献
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在深化生物课堂教学改革中,改变影响生物课堂教学的多种要素,整体观照生物课堂教学中师生生活状态,提升生物课堂教学的价值,让生物课堂教学焕发生命活力。 相似文献
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赵瑾 《零陵师范高等专科学校学报》2009,(7):134-137
《生物多样性公约》序言指出,各个缔约国确认保护生物多样性是全人类共同关切的问题,“人类共同关切问题”被界定为一个新兴法律概念已经引起各界的注意．它以国际社会共同利益为基础,体现生物多样性保护的核心价值,明确个人与国家间的责任;并在限制人类自身活动对生物多样性保护的不利影响及对生物资源环境进行可持续开发利用的过程中,能够从提高公众对人类共同关切问题的关注度、完善保护生物多样性的国内法律制度及加强国家行政管理几个方面应对目前实践中所遇到的问题． 相似文献
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在数控技术运用中,通过振动控制与速度控制等,在提高数控机床加工精确度的同时,也可提高加工的质量和经济效益。数控机床的智能化,运用计算机建模软件加强对机械加工的程序控制,在加强切削等环节控制能力的同时,追求高精确度的实现。机械加工精确度既体现数控机床的技术含量,也体现操作控制者技术技能水平,其与企业的发展有着直接的关系。 相似文献
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鞍山科技大学职业技术学院 《辽宁高职学报》2002,4(6):59-60
学分制是一种比较先进的高等教育教学管理制度。把它应用于高职教育教学会带来诸多好处，有利于因材施教，有利于提高学生的综合素质，有利于突出实践教学在高等职业教育教学中的地位，有利于复合型人才的培养，提高学生的就业及社会适应能力，有利于高职教育改革和办学实力的提高。 相似文献
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Integration of inquiry-based approaches into curriculum is transforming the way science is taught and studied in undergraduate classrooms. Incorporating quantitative reasoning and mathematical skills into authentic biology undergraduate research projects has been shown to benefit students in developing various skills necessary for future scientists and to attract students to science, technology, engineering, and mathematics disciplines. While large-scale data analysis became an essential part of modern biological research, students have few opportunities to engage in analysis of large biological data sets. RNA-seq analysis, a tool that allows precise measurement of the level of gene expression for all genes in a genome, revolutionized molecular biology and provides ample opportunities for engaging students in authentic research. We developed, implemented, and assessed a series of authentic research laboratory exercises incorporating a large data RNA-seq analysis into an introductory undergraduate classroom. Our laboratory series is focused on analyzing gene expression changes in response to abiotic stress in maize seedlings; however, it could be easily adapted to the analysis of any other biological system with available RNA-seq data. Objective and subjective assessment of student learning demonstrated gains in understanding important biological concepts and in skills related to the process of science. 相似文献
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Like Father, Like Son: Young Children's Understanding of How and Why Offspring Resemble Their Parents 总被引：7，自引：0，他引：7
Gregg E. A. Solomon Susan C. Johnson Deborah Zaitchik Susan Carey 《Child development》1996,67(1):151-171
4 studies investigated the broad claim that preschoolers understand biological inheritance. In Study 1, 4–7-year-old children were told a story in which a boy was born to one man and adopted by another. The biological father was described as having one set of features (e.g., green eyes) and the adoptive father as having another (e.g., brown eyes). Subjects were asked which man the boy would resemble when he grew up. Preschoolers showed little understanding that selective chains of processes mediate resemblance to parents. It was not until age 7 that children substantially associated the boy with his biological father on physical features and his adoptive father on beliefs. That is, it was not until age 7 that children demonstrated that they understood birth as part of a process selectively mediating the acquisition of physical traits and learning or nurturance as mediating the acquisition of beliefs. In Study 2, subjects were asked whether, as a boy grew up, various of his features could change. Children generally shared our adult intuitions, indicating that their failure in Study 1 was not due to their having a different sense of what features can change. Studies 3 and 4 replicated Study 1, with stories involving mothers instead of fathers and with lessened task demands. Taken together, the results of the 4 studies refute the claim that preschoolers understand biological inheritance. The findings are discussed in terms of whether children understand biology as an autonomous cognitive domain. 相似文献
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发展效益农业是目前各地农村工作的重点，但我们在调查过程中发现，各地在发展效益农业的过程中普遍存在一些问题。这些问题的有效解决．关系到效益农业能否得到持续、稳定的发展，也关系到农业产业化、现代化的进程。 相似文献
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INTRODUCTION Saccharomycete, closely linked with human life, is the only microbe that has been utilized to the extent of over a million tons in the world, and is one of the modelled biological bacteria mostly used in modern genetic engineering. Since there are no effective online instruments for measuring the production or resultant concentration, which is a very important quality index in fermentation process, soft sensors (Martin, 1997; Tham et al., 1991; Assis and Filho, 2000; Salgad… 相似文献
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本文介绍了瑞香狼毒生物学特性及对生态环境的影响,对瑞香狼毒的生药鉴定及目前化学成分的研究情况进行概述,旨在为瑞香狼毒的综合利用和进一步研究提供参考. 相似文献
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区域高等教育应树立成本效益的观念。通过对山东西南某高校教育投资效益评价的分析可以看出,要提高区域高等教育投资效益,必须充分认识到投资高等教育所带来的真正的效益,提高经营意识。区域高校要充分发挥政府投资主渠道作用,建立和完善多元化融资体制;加强财务管理与监督,管好、用好教育投资;通过合并组建,形成规模经济,提高资源利用率;加快高校后勤社会化进程,减轻高校的经济压力。 相似文献
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论述了绿色化学理念和绿色化学的基本原理,重点探讨了绿色化学理念在化学化工过程中的实施,即不断开发新的化学催化过程,提高反应的原子经济性,选用新的合成原料;采用不对称催化剂、分子筛固体酸碱催化剂和生物催化剂等高选择性、高活性的催化剂;采用水、超临界流体、离子液体、氟碳相等无毒无害溶剂和固态反应;重视生物质的利用和化学产品的绿色化等。 相似文献