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表里的生物说课稿 八年级下册生物说课稿12篇(优秀)
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表里的生物说课稿 八年级下册生物说课稿篇一
一、教材的地位
本单元贯彻了以人与生物圈为主线构建框架的思路，力求引导学生在生物圈这个大的背景下思考人类生存和发展的问题。这部分内容不仅与上册教材有密切的联系，而且又是本册的开头，因此起着承上启下的作用。
人类的起源和发展问题是一个重大的科学问题，容易激发学生浓厚的学习兴趣，同时又是人类史上科学与伪科学斗争的一个过程，因此探索这个问题具有重要的意义。通过本节的学习，我们知道：人类是由于环境的改变，经过极其艰苦、漫长的过程，通过劳动才进化来的。因而启发我们必须以积极的态度去适应不断变化的环境，形成热爱劳动、热爱生活的积极态度；同时也应意识到人既是生物圈中的一分子，又是自然界的强者，人类已强大到能够影响生物圈的面貌，为此我们应该处理好与生物圈的关系。
从以上可知，本节教材具有举足轻重的作用，必须认真上好。
<一>、知识目标：
1、能说出人类与现代类人猿共同起源于森林古猿。
2、知道人类是由于环境的变化，在与自然环境的艰苦斗争过程中逐渐进化来的。
3、概述人类在起源和发展过程中自身形态、使用工具等方面的变化。
<二>、能力目标：
1、通过指导学生课前收集有关人类的起源和进化的资料等，培养学生收集资料、获取信息的能力。
2、通过对人类的起源和进化的探究，打开学生思路，培养他们的观察能力、想象能力、分析能力、比较问题能力及口头表达能力。
<三>、情感、态度价值观目标：
1、培养学生以科学的态度认识人类的起源和进化问题，树立人类进化与发展的辩证唯物主义观点。
2、培养学生树立珍爱生命、热爱劳动、爱惜我们的家园——生物圈及人类应当与自然和谐发展的观点。
3、培养学生探索科学的精神、实事求是的科学态度及民族自豪感。
4、培养学生善于与人合作的良好品质。
<四>、方法目标：
1、培养学生运用比较法来找出事物的异同点。
2、培养学生运用证据、事实来说明观点的科学方法。
3、培养学生运用辩证唯物主义观点来分析和解决问题。
表里的生物说课稿 八年级下册生物说课稿篇二
＜生物对环境的适应和影响＞是生物学七年级上册第二章第三节内容。本章站在生物圈的高度，论述了生物与环境之间是相互影响、相互依存的一个不可分割的整体。这是一个最基本的生物学观点，也是理解“人与生物圈应该和谐发展”的理论基础。所以该节在本书中乃至在本学科中都占有重要的地位。
本节知识点清晰，一是生物对环境的适应，另一就是生物对环境的影响，呈现的方式也直观，前者就四幅图片，后者是一个探究活动，非常符合初中学生的心理特点，内容看似简单，但要能让学生尤其是初一学生建构生物与环境之间是一个不可分割的整体，不是一件很容易的事。所以在教学中要充分利用教材，多采用直观手段，认真组织活动，帮助学生初步建立这个基本的生物学观点。
基于以上分析，结合新课程标准的新理念，确立如下教学目标：
（一）认知目标：
1、认同生物的形态结构、生活方式与环境相适应的观点；
2、能够选取多方面的事例来描述生物对环境的适应和影响。
（二）能力目标：
1、通过分析文字和图片资料来提高说明问题的能力；
2、尝试收集、处理数据的方法；
3、学习通过测量进行科学探究的方法。
（三）情感态度与价值观目标：
1、了解生物与环境的关系，渗透环保意识；
2、树立“生物与环境是一个不可分割的整体”观点；
3、利用技能训练，鼓励学生多从生活中发现问题、提出问题，培养学生的科学精神。
“植物对空气湿度的影响”探究是重点，新教材倡导探究性学习，应该利用好每一次活动，来培养探究的方法和能力。
1、本节课贯穿观察和讨论，主要运用启发式谈话法，启迪学生思维、激发学习热情，并遵循从感性认识到理性认识的认知规律，利用多媒体的现代教育手段，以大量的图片和动画，让学生通过观察、思考、分析综合等一系列思维活动，逐渐认识到生物与环境之间是一个不可分割的整体。
2、本节“植物对空气湿度的影响”的探究活动并不难，运用前一节的探究活动方法完全能够完成，所以这个活动我安排在课前，课上主要是组织各小组交流活动的“过程”和结果的处理方法。让知识的获得渗透在过程的体验中，让成功的喜悦体现于精彩的交流中，让能力的培养贯穿在活动的参与中。
通过观察、讨论、分析去发现知识，逐渐培养自主学习的习惯和能力，通过课前的探究活动和课上的交流，体验知识获得的过程，感悟科学探究的方法，体会同学间合作的魅力，尝到探究性学习的乐趣。掌握科学探究的一般方法。
（一）复习提问，导入新课：
启发学生例举生活中熟悉的生物受到环境中哪些因素的影响，导入新课，这样导入有两个好处，1、既考验了前一节课的知识的掌握情况，又体现了两课内容的紧密联系；2、创设了情景，激发了兴趣，让人自然而然想到生物对环境有没有影响呢，行云流水般引入新课。
（二）新知学习：
1、“生物对环境的适应”是重点又是难点，这样安排：
第一步：让学生观察教材的四幅图片，引导从“形态结构”、“生活方式”与环境间的联系展开小组讨论。然后让学生选择一幅来谈谈自己的看法。创设了一个平等、民主、和谐的课堂氛围，这可是思维发展的肥沃土壤。在这种氛围中学生的思维是发散性的，充满灵性的。
第二步：启发学生还能找到生物的形态结构、生活方式与环境相适应的例子吗？鼓励学生提取平时积累的知识，给他们表现的机会，激起竞争意识。
第三步：媒体呈现配有介说词的图片，如：乌贼的墨囊；含羞草的叶与多暴雨的环境相适应；尺蠖的拟态等等，让同学们认识到生物对环境的适应是具有普遍性的，这种适应是生物通过漫长的年代，不断与环境摩合，自身不断进化、生存下来而形成的形态结构和生活方式。完整地帮助学生理解生物对环境相适应的观点，对于生物对环境的适应具有相对性，考虑到初一学生的理解能力，不便提，以后高中会学到。
2、生物对环境的影响
生物在适应环境的同时，也对环境有一定的影响。这部分的知识是这样处理的：
第一步：让学生亲身验证“生物也可以影响环境”这一结论：
课前亲自探究“植物对空气湿度的影响”，课上交流。这样安排体现：1、有做事的过程；2、有明确的目标；3、有明确的结果；4、使用语言传达信息5、体现过程的真实性。这是任务型教学的五要素。交流时注意：对于初中学生来说，过程是比结果更重要，但在这儿，由于结果涉及到对数据的收集和处理，这也是科学探究的一种方法，应以激励和引导。
学生从“做中学”中亲身验证了植物对空气的湿度有影响，有利于认识生物是可以影响环境的。
第二步：再让学生思考两个问题：
a、地下耕耘者是哪种动物，它对自然界有什么益处？
b、为什么我国开发西部强调要退耕还林和还草？从生物对环境产生的作用这个角度来认识生物的存在确实影响着环境。
第三步：让学生尝试举例描述“生物对环境的影响”的生活中的例子。加深并及时反馈学生对这方面知识的理解。
第四步：播放动画“屎克螂出国记”，以生动的画面使学生真正体会到生物对环境的作用和影响，同时在学生注意力即将分散的时候再一次激起他们的兴趣。
3、技能训练：
这是新教材的一个别有用心之处，旨在培养学生的观察、分析、综合等能力，我们要充分利用教材的这一优势。引导学生观察并思考，“看谁提出的问题最有价值?”在问题的提出和解决中培养思维能力。
最后师生共同总结本课收获，这点很重要，在学生理解的基础上及时帮助他们构建概念，点睛突出“生物与环境是一个不可分割的整体”的生物学观点。引导学生认识到人类生活在生物圈，对环境的破坏必将回报给人类，所以人和自然和谐相处是多么重要！
（三）作业练习：（见教材）
1、在一个繁殖季节里，一条鲤鱼能产几十万粒卵，而一般的小型鸟类只产几个卵，你能其中的道理吗？这是不是生物对环境的适应？
2、山羊绒又细又柔软，组成的产品十分昂贵。山羊比绵羊好养，它连草根都啃食。于是一些牧区大量饲养山羊，这对环境会有什么影响？
这是两道开放性题，既能达到巩固知识点的目的，又能煅炼思维，体现知识与社会、日常生活的紧密联系，使学有所用。
整个教学过程的逻辑顺序就是这样安排的。实践证明，在教学中，充分利用新教材的优势，创设一个民主、和谐的课堂氛围，引导学生开展探究性学习，利用多媒体的现代教育手段支撑整个教学过程，使学生在一个生动、有趣、多姿多彩的生物课堂中，愉快地“享受”学习。
表里的生物说课稿 八年级下册生物说课稿篇三
“生物对环境的适应和影响”这一课是生物学七年级上册第二章第三节内容。本章站在生物圈的高度，论述了生物与环境之间是相互影响、相互依存的一个不可分割的整体。这是一个最基本的生物学观点，也是理解“人与生物圈应该和谐发展”的理论基础。所以该节在本书中乃至在本学科中都占有重要的地位。
在前一节“环境对生物的影响”的基础上再来考虑“生物对环境的适应和影响”，其实是从一个问题的两个方面辩证地分析生物与环境之间确是一个不可分割的整体，也为下一节“生态系统”的学习作好预设。
本节知识点清晰，一就是生物对环境的适应，另一就是生物对环境的影响，呈现的方式也直观，前者就四幅图片，后者是一个探究活动，非常符合初中学生的心理特点，内容看似简单，但要能让学生尤其是初一学生建构生物与环境之间是一个不可分割的整体，不是一件很容易的事。所以在教学中要充分利用教材，多采用直观手段，认真组织活动，帮助学生初步建立这个基本的生物学观点。
基于以上分析，结合新课程标准的新理念，我确立如下教学目标：
（一）、认知目标：
1、认同生物的形态结构、生活方式与环境相适应的观点；
2、能够选取多方面的事例来描述生物对环境的适应和影响。
（二）、能力目标：
1、通过分析文字和图片资料来提高说明问题的能力；
2、尝试收集、处理数据的方法；
3、学习通过测量进行科学探究的方法。
（三）、情感态度与价值观目标：
1、了解生物与环境的关系，渗透环保意识；
2、树立“生物与环境是一个不可分割的整体”观点；
3、利用技能训练，鼓励学生多从生活中发现问题、提出问题，培养学生的科学精神。
1、描述生物对环境的适应和影响是重点又是难点；
2、“植物对空气湿度的影响”探究是重点，新教材倡导探究性学习，应该利用好每一次活动，来培养探究的方法和能力。
1、本节课贯穿观察和讨论，主要运用启发式谈话法，启迪学生思维、激发学习热情，并遵循从感性认识到理性认识的认知规律，利用多媒体的现代教育手段，以大量的图片和动画，让学生通过观察、思考、分析综合等一系列思维活动，逐渐认识到生物与环境之间是一个不可分割的整体。
2、本节“植物对空气湿度的影响”的探究活动并不难，运用前一节的探究活动方法完全能够完成，所以这个活动我安排在课前，课上主要是组织各小组交流活动的“过程”和结果的处理方法。让知识的获得渗透在过程的体验中，让成功的喜悦体现于精彩的交流中，让能力的培养贯穿在活动的参与中。
通过观察、讨论、分析去发现知识，逐渐培养自主学习的习惯和能力，通过课前的探究活动和课上的交流，体验知识获得的过程，感悟科学探究的方法，体会同学间合作的魅力，尝到探究性学习的乐趣。同时也提高了分析问题的能力、语言表达能力，并进一步掌握科学探究的一般方法。
（一）复习提问，导入新课：
启发学生例举生活中熟悉的生物受到环境中哪些因素的影响，导入新课，这样导入有两个好处
1、既考验了前一节课的知识的掌握情况，又体现了两课内容的紧密联系；
2、创设了情景，激发了兴趣，让人自然而然想到生物对环境有没有影响呢，行云流水般引入新课。
（二）新知学习：
1、“生物对环境的适应”是重点又是难点，我是这样安排的：
第一步：
让学生观察教材的四幅图片，引导从“形态结构”、“生活方式”与环境间的联系展开小组讨论。然后让学生选择一幅来谈谈自己的看法。创设了一个平等、民主、和谐的课堂氛围，这可是思维发展的肥沃土壤，也是我的课堂风格。在这种氛围中学生的思维是发散性的，充满灵性的。
第二步：
启发学生还能找到生物的形态结构、生活方式与环境相适应的例子吗？鼓励学生提取平时积累的知识，给他们表现的机会，激起竞争意识。
第三步：
媒体呈现配有介说词的图片，如：
乌贼的墨囊；含羞草的叶与多暴雨的环境相适应；尺蠖的拟态等等，让同学们认识到生物对环境的适应是具有普遍性的，这种适应是生物通过漫长的年代，不断与环境摩合，自身不断进化、生存下来而形成的形态结构和生活方式。完整地帮助学生理解生物对环境相适应的观点，对于生物对环境的适应具有相对性，考虑到初一学生的理解能力，不便提，以后高中会学到。
2、生物对环境的影响
生物在适应环境的同时，也对环境有一定的影响。这部分的知识我是这样处理的：
第一步：
让学生亲身验证“生物也可以影响环境”这一结论：
课前亲自探究“植物对空气湿度的影响”，课上交流。这样安排体现
1、有做事的过程；
2、有明确的目标；
3、有明确的结果；
4、使用语言传达信息
5、体现过程的真实性。
这是任务型教学的五要素。交流时注意：
对于初中学生来说，过程是比结果更重要，但在这儿，由于结果涉及到对数据的收集和处理，这也是科学探究的一种方法，应以激励和引导。
学生从“做中学”中亲身验证了植物对空气的湿度有影响，有利于认识生物是可以影响环境的。
第二步：
再让学生思考两个问题：
a、地下耕耘者是哪种动物，它对自然界有什么益处？
b、为什么我国开发西部强调要退耕还林和还草？从生物对环境产生的作用这个角度来认识生物的存在确实影响着环境。
第三步：
让学生尝试举例描述“生物对环境的影响”的生活中的例子。加深并及时反馈学生对这方面知识的理解。
第四步：
播放动画“屎克螂出国记”，以生动的画面使学生真正体会到生物对环境的作用和影响，同时在学生注意力即将分散的时候再一次激起他们的兴趣。
3、技能训练：
这是新教材的一个别有用心之处，旨在培养学生的观察、分析、综合等能力，我们要充分利用教材的这一优势。引导学生观察并思考，“看谁提出的问题最有价值?”在问题的提出和解决中培养思维能力。
最后师生共同总结本课收获，这点很重要，在学生理解的基础上及时帮助他们构建概念，点睛突出“生物与环境是一个不可分割的整体”的生物学观点。引导学生认识到人类生活在生物圈，对环境的破坏必将回报给人类，所以人和自然和谐相处是多么重要！
（三）、作业练习：
1、在一个繁殖季节里，一条鲤鱼能产几十万粒卵，而一般的小型鸟类只产几个卵，你能其中的道理吗？这是不是生物对环境的适应？
2、山羊绒又细又柔软，组成的产品十分昂贵。山羊比绵羊好养，它连草根都啃食。于是一些牧区大量饲养山羊，这对环境会有什么影响？
这是两道开放性题，既能达到巩固知识点的目的，又能煅炼思维，体现知识与社会、日常生活的紧密联系，使学有所用。
整个教学过程的逻辑顺序就是这样安排的。实践证明，在教学中，充分利用新教材的优势，创设一个民主、和谐的课堂氛围，引导学生开展探究性学习，利用多媒体的现代教育手段支撑整个教学过程，使学生在一个生动、有趣、多姿多彩的生物课堂中，愉快地“享受”学习。
集处理信息和解决问题的能力.
表里的生物说课稿 八年级下册生物说课稿篇四
⑴教材内容、地位
《微生物在生物圈中的作用》是北师大版八年级生物上册第18章“生物圈中的微生物”中第1小节的内容，本节内容包括3个方面：
1、微生物的特点；
2、微生物的种类；
3、微生物的生活。
在初中生物学阶段，本节内容是学生了解微生物的第一课，在课程标准中虽没有独立的体现，却与今后授课的内容有着密切联系，特别对于十大主题中的《生物技术》，有一种奠基的作用。
⑵教学目标
【知识目标】
1．简述什么是微生物，列举常见微生物的类型；
2．概述微生物的生活及其在生物圈中的作用；
3．探究我们身边是否存在微生物。
【能力目标】
通过学生的课外探究活动和收集相关的资料，培养学生的探究能力和团队协作的精神、收集和处理信息的能力；通过让学生课堂发言，提高学生语言表达和信息交流、归纳总结的能力，这是
【情感目标】
增强学生对社会事件的关注，学会辩证地分析事情、看待问题的
⑶教学重点、难点
【教学重点】
1．微生物及其种类
2．微生物的代谢类型、繁殖特点
3．微生物在生物圈中的作用
【教学难点】
1．探究我们身边是否存在微生物
2．微生物的代谢方式及其在生物圈中的作用
八年级的学生对于微生物只是有一个模糊的概念，真正准确认识的学生并不多。而本节知识涉及的几乎都是微观生物，对于学生的掌握理解有一定的难度。抽象的理解有困难，但是形象的理解相对则比较容易。因此，在实际教学中，通过直观的图片演示，在学生已有生活经验、知识的基础上，可以纠正、加强他们的认识。对于教材中安排的探究性活动，平时学生虽然有一定的理论基础，但是缺少足够的实践，虽然有探究的积极性，但探究的科学性把握不到位，需要教师的帮助和引导。
制作相关多媒体课件；提前准备分发实验材料；提前布置探究性活动
【教法】
本节课我采用的不是传统的注入式，而是结合了多媒体直观教学（特别是图片），通过问题衔接知识点，由教师引导，学生归纳，小组合作交流探究活动结论，体现教师的引导作用和学生的学习主体地位。
【学法】
小组合作：上课之前学生按事先分组，进行探究活动
课堂交流：师生交流，学生学会在教师引导下归纳总结知识点。
小组交流，学生在交流中学会分析选择，培养综合能力。
自主学习：课后学生收集相关材料，完成“假如地球上没有微生”活动，培养收集和处理信息的能力。
1．临境入兴，激发动机（预计耗时5分钟）
以情境图片、文章开篇，联系生活实际，展示部分生活中比较常见、常接触的微生物现象。简要介绍、讨论这些微生物现象，让学生对微生物有一整体的了解。以问题串的方式，充分调动学生已有的生活经验、经历，激发学习的兴趣，引入教学主题。
2．归纳小结，直击主题（预计耗时10分钟）
通过学生讨论，教师小结，引导学生归纳出“什么是微生物”，即生物圈中，个体微小、结构简单的低等生物。提示学生三个关于微生物的要点，突出重点。同时进行知识延伸拓展，要求学生再举例，教师稍作评价。
通过比较不同的图片，提出微生物的分类。按细胞结构特点，分别展示单细胞微生物、多细胞微生物、无细胞结构微生物。
⑴单细胞微生物：展示其相关图片，提示学生注意只有一个细胞组成的特点，最后展示细菌时，分别展示细菌的不同形态。
⑵多细胞微生物：展示其相关图片，提示学生这类微生物细胞组成特点，解释大型真菌和微生物的关系。
⑶无细胞结构微生物：展示其相关图片，提示学生此类微生物没有细胞结构，为简介其营寄生生活埋下伏笔。
问题再引入，提出微生物的生活场所，学生回答，教师简要评价小结。
微生物主要的活动场所——土壤；微生物活动的重要场所——动植物的体表和体内；其他恶劣环境。
可以自行合成有机物的微生物，在生物圈中充当生产者。实现横向联系和旧知识的复习。
在展示完根瘤菌的固氮作用图片后，教师进行小结：微生物的生活方式多种多样、代谢类型多、代谢强度高。
最后由学生自行对比人和大肠杆菌的繁殖速度、肉牛和酵母菌合成蛋白质的速度，得出结论：生物繁殖速度极快。
4．巩固知识，实际应用（预计耗时3分钟）
总结本堂课教学重点，布置课外活动和课后习题，给学生任务，培养收集处理信息和解决问题的能力。
表里的生物说课稿 八年级下册生物说课稿篇五
各位老师好，我今天说课的题目是《从生物圈到细胞》
本课是人教版高中生物必修一《分子与细胞》模块，第一章第一节的内容。是初中生物知识的扩展延伸，也为后续其他模块、其他章节的学习奠定最根本的基础。
根据高一年级学生生物知识的认知情况和基础，确定以下教学目标：
1、 知识目标：①举例说出生命活动建立在细胞的基础之上。 ②举例说明生命系统的结构层次。
2、能力目标： 通过回顾初中所学知识，培养学生新旧知识衔接能力，以及归纳整合能力，还有分析讨论，合作交流的能力。
3、情感目标： 认同细胞是基本的生命系统。
本课的重点是： ①生命活动建立在细胞的基础之上。 ②生命系统的结构层次。
本课的难点是： 生命系统的结构层次。 具体将在教学过程中渗透介绍。
本节课是学生升入高中的第一节生物课，很多内容是建立在初中已学过的知识的基础之上，所以好好引导学生回顾初中所学知识，再在已学的知识的基础之上补充学习本节课新知识，犹如建立高楼大厦得有稳固的根基。
为了是更好地实现上述的教学目标，根据新课程标准来培养学生自主合作探究性能力的为主的要求，以及高一年级学生的实际情况出发，本课采用了回顾旧知法，谈话比较法，指导读书法等引导学生自主探究，合作交流，让学生积极主动参与到教学过程中，培养学生温故知新的能力，观察问题、分析解决问题的能力，归纳总结的能力。具体教学方式将结合教学过程来介绍。
根据教材的重难点、学生的实际学习情况以及多媒体课件传递信息量有限制的特点，这部分内容我安排1个课时。按照上述的教学目标和教学任务，本课共设计了导课，资料分析——生命活动离不开细胞，探究——生命系统的结构层次，练习，小结，作业六个环节，从生活到知识，从理论到实际的认知规律来完成本科的学习。具体过程如下：
第一环节：导课
教师利用多媒体课件展示sars患者肺部x光片弥漫性阴影及sars病毒模式图，引导学生回顾病毒相关知识：病毒没有细胞结构，只有蛋白质外壳和核酸核心，但是能复制。再师生互动完成“问题探讨”。 本环节通过回顾学生已学的病毒知识入题，培养学生新旧知识是归纳整合能力，也让学生初步认识到生命离不开细胞这一观点。
第二环节：资料分析——活动离不开细胞
从细胞是生物体结构和功能的基本单位着手，教师利用多媒体课件分别展示四个实例，并要求学生认真阅读资料分析的内容，分组讨论。最后师生互动总结生命活动离不开细胞，突出生命活动建立在细胞的基础上这一重点知识。具体介绍如下：
实例一：教师利用多媒体课件展示草履虫的运动和分裂的过程，可补充一些问题，帮助学生思考。如草履虫是单细胞生物还是多细胞生物？它具有生物的哪些基本特征？最后让学生讨论回答讨论一。 学生认真观看材料，讨论回答讨论一，教师给予正确引导和评价，最后得出单细胞动物具有生命的基本特征这一观点。
实例二：教师播放人的生殖和发育的过程图，并问：人的发育时从生命细胞开始？新生儿发育长大是由于细胞发生了怎样的变化？等问题帮助学生理解人的生殖和发育过程，更好的讨论完成讨论二。 通过实例二，师生互动得出了多细胞生物的生命活动是从一个细胞开始的，其生长和发育也是建立在细胞的分裂和分化基础上的。
实例三：教师展示缩手反射的结构基础图，并让学生数数完成一个简单的缩手反射需要至少几个细胞的参与，学生根据教师的引导分析并完成讨论三。最后师生互动得出反射等神经活动需要多种细胞的参与的观点。
实例四：教师利用多媒体课件展示hiv病毒感染人体免疫系统的淋巴细胞引起艾滋病的过程，教师引导学生将此事例与sars病毒联系起来就不难回答讨论四。从实例四中得出了免疫作为机体对入侵病原微生物的一种防御反应，需要淋巴细胞的参与的.观点。
最后教师引导学生归纳总结：生命活动离不开细胞，生命活动是建立在细胞的基础之上。
通过本环节的学习，学生展握了生命活动建立在细胞的基础之上这一本节课的重点知识外，还培养了阅读能力，分析和解决问题的能力，还有归纳总结的能力。
第三环节：探究——生命系统的结构
“生命系统的结构层次”是本节的重点，也是难点，教师应引导学生系统地理解这几个层次，在理解这些结构层次时可以适当地补充各个层次的名词解释，以利于学生从微观到宏观，步步紧扣地理解生命系统的严密性、层次性和多样性。教师按照以下的方式来呈现：
教师利用多媒体课件呈现课本第5页的生命系统的结构层次图片，让学生认真观察图片，对生命系统的结构层次有了一个整体的感知。然后再由最基础是心肌细胞说起，直至生物圈，逐个阐明了生态系统的各个层次，即细胞—组织—器官—系统—个体—种群和群落—生态系统—生物圈。适时补充各个层次的概念。除了群落和种群外，其他的概念，高一年级的学生在初中时已有学过，所以要重点补充群落和种群的概念配合实例巩固理解。在一定区域内，同种生物的所有个体是一个种群，所有的种群组成一个群落。在一个池塘中的全部鲫鱼就是一个种群，而池塘中的全部生物就构成了一个群落。同时也针对其他生命系统的层次补充一些实例来加深理解。如：与心肌细胞同层次的还有平滑肌细胞、骨骼肌细胞、上皮细胞、神经细胞等。还可以让学生以一个人、一棵松树或一只草履虫为例，用不同生物研究生命系统各个层次的关系，以便理解生命系统的复杂性和多样性。
最后让学生分组讨论完成“思考与讨论”，巩固生命系统的结构层次相关知识。
通过本环节的学习，学生不但学得了生命系统的结构层次这部分的知识，同时还培养了他们理论联系实际，合作交流的能力，也在情感上认同了细胞是最基本的生命系统。
第四个环节：练习
学生应用本节课所学的知识完成课后练习，教师其指导作用，学生通过本环节巩固加深本节课所学知识，培养了归纳整合，解决实际问题的能力。
第五个环节：小结
教师教师引导学生回顾本节课所学的全部知识，逐一重复基本知识，突出重点，突破难点。培养学生三维整合的能力。
第六个环节：作业布置
1、复习本节可所学知识。
2、 预习下节课，并回答以下问题：
①原核细胞和真核细胞有什么异同？
②怎么样使用高倍镜观察动植物细胞？
以上是我对本节课的说课，说课完毕，谢谢
表里的生物说课稿 八年级下册生物说课稿篇六
各位领导老师好
我今天说课的题目是高中…年级下册选修…专题……中课题……《……》，下面我将从教材分析、教法和学法、教学设计、板书设计四个方面来对本课题进行说明。
首先我对本课题教材进行分析，在学习本课题之前，学生已经学习了……，对……有了一定的理解，这对本课题的学习起到了一定的铺垫作用，这节课主要包括……和……等内容，它的学习也为后面……的学习打下了基础，所以，学好这节课还是很重要的。本内容包含的一些……知识，是以后生物学习中不可缺少的部分，也是今后高考的必考内容。
教材首先从……入手，先讲了后讲了
通过分析，本节课具有3个特点:(1),学习内容紧密联系生产和社会,从日常生活中的事例引入,重视学习内容在现实生活中的应用,体现了科学,技术与社会的联系.(2),本节课的内容安排注重高二学生的认知特点.学生在之前已经学习过……（对……有了一定的了解），但是,对于实验的步骤设计、具体细节处理等,还没有完全掌握（还不是很熟悉），学习起来还是有一定难度的 (3),本节课注重落实《新课程标准》提出的关于学生应该培养科学探究能力的要求.有意识地设置了具有探究性质的教学活动同时通过以图代文,读表分析,讨论思考等方式,引导学生在探究过程中寻找答案,培养了学生的观察 ,分析,概括等能力.
基于对教材的分析和理解，我从知识、能力、情感（德育）三方面确定了如下的教学目标。首先知识方面，我认为学生应该掌握……，理解……；其次能力方面，要养成（培养）学生……方面的能力；再次情感方面就是要引导他们培养什么态度，树立什么观念等等。
在吃透教材的基础上，结合高二学生的认知结构和大纲要求，我制定了本课的重难点：本节课的重点包括……和……两点，而……是他们的薄弱环节，难以把握，比较抽象，所以本节课的难点就是……
为了讲清楚教材的重难点，是学生能够达到上面所说的教学目标，我再从教法和学法上谈一下，也就是本次说课的第二部分，
由于生物是一门理论与实践相结合的学科，而本书又主要依实验为依托（在实验的基础上编写的），所以，培养学生的观察能力、引导学生学会设计实验和能够动手操作尤为重要。考虑到本课的特点，我准备采取设置情境教学，让学生积极主动的参与到教学活动中来，具体来说主要采用直观演示法：采用播放……有关图片、视频等手段对……进行直观演示，【激发学生的学习兴趣，促进学生对知识的掌握。】
活动探究法:通过创设情景等活动形式获取知识，培养学生的自学能力、思维能力。 分组讨论法：针对学生提出的问题，组织学生进行分组讨论，【培养学生的团结协作的精神。】
俗话说：好的方法能够事半功倍，没有学不好的学生，只有不会学习的学生，在教学中，我特别重视对学生学法的指导，教会他们活学活用，而不是死板硬套死记硬背，具体说来我准备引导他们用理解记忆法、分析归纳法、自主探究法、总结反思法等方法来学习本课。
分析了教法和学法，下面我将具体说一下本次说课的第三部分…——教学设计，这一部分我将分为三个环节
一，温故知新，引入新课
首先，我先提问学生上节课学习的主要内容，了解他们的掌握情况，温故知新。
接着我将利用课件（视频小片段、图片播放）演示等播放……的图片（内容）， 引出新课（……内容）创设教学情境,自然地引入教学主题……，进入到教学的第二环节
第二环节，创设情境，讲授新课
然后在讲授新课环节，接着利用课件演示……提出……的问题，引导学生思考，
向学生讲解有关……的基础知识，从……讲起，……
由于本节课的重点是实验，按照新的课程标准，教师不能只依照传统教学方法，照猫画虎式地按照实验步骤完成实验，要注重对学生探究能力的培养。不仅要让学生知道实验的步骤和方案，还要使学生理解每一个实验步骤的设计原理，体验科学探究的过程和方法。所以我采用播放……让学生自己通过……的观察分析, 自主设计实验步骤并对实验结果进行分析，使学生在设计实验的过程中体验科学的方法，在实验中加深理解，变抽象内容为具体设计,更好地突破了重难点，更培养了他们对知识的探索能力
找同学描述自己的设计方案，然后通过其他学生对其方案进行评价，并提出完善方案（修改建议），最后由我及时进行总结并给出完善、详细的设计方案，并总结探究性实验的设计原则：1、提出实验假设2、设计探究实验方案3、得出实验结论并进行分析，
接着，再次让学生观察或思考试验流程，鼓励学生大胆阐述自己的见解，指出实验应注意的问题，实验中有关操作的调控，我在根据学生的讨论归纳，结合教材……的内容进行详细讲解，师生一起互动，突破难点
在完成本课主要教学内容后，我将对教材中有关……的知识点进行适当引申，比如……，以拓宽学生的知识面，也有利于学生对知识点的串联积累及其思维的展开，达到举一反三的效果。接着进入第三环节
第三，整体回顾，归纳小结
最后，对本课进行小结，简要回顾本节课学习的主要内容……，并指出那些内容需要学生记忆，比如……，那些需要理解，那些需要课下自己查阅资料。之后，布置作业，难度要适中，既兼顾基础，又有拔高锻炼
最后，说我的板书设计，也是我说课的第四部分，我将这样设计本课的课堂板书……
我认为这样的设计比较直观系统，一目了然。简要体现了教材中的知识点，便于学生理解。
各位领导老师，本节课我以 “教师为主导，学生为主体，以实验为基础，一学法指导为中心，让学生主动地参与到知识形成的整个思维过程中来，并最终达到预期的教学效果。
我的说课完毕，谢谢大家！
各位领导 、老师们，你们好！
今天我要进行说课的内容是
首先，我对本节内容进行分析
一、说教材的地位和作用
《 》是人教版教材高二生物必修本第 单元第 节内容。在此之前，学生们已经学习了 ,这为过渡到本节内容的学习起到了铺垫的作用。因此，本节内容在 中具有不容忽视的重要的地位。
本节内容前面承接本教材的 内容，后面是本教材的 这部分内容，所以学好这个内容为学好以后的生物知识 打下牢固的理论基础，而且它在整个教材中也起到了承上启下的作用。本内容包含的一些 知识，是以后生物学习中不可缺少的部分，也是今后高考的必考内容。
二、说教学目标
根据本教材的结构和内容分析，结合着高二年级学生他们的认知结构及其心理特征，我制定了以下的教学目标：
1、 认知目标：识记：
理解
2、 能力目标
3、 情感、态度、价值观目标
三、说教学的重、难点
本着高二新课程标准，在吃透教材基础上，我确定了以下的教学重点和难点
教学重点：
重点的依据：只有掌握了 ，才能理解和掌握
教学难点：
难点的依据： 较抽象；学生没有这方面的基础知识。
为了讲清教材的重、难点，使学生能够达到本节内容设定的教学目标，我再从教法和学法上谈谈：
四、 说教法
我们都知道生物是一门培养人的实践能力的重要学科。因此，在教学过程中，不仅要使学生“知其然”，还要使学生“知其所以然”。我们在以师生既为主体，又为客体的原则下，展现获取理论知识、解决实际问题方法的思维过程。
考虑到我校高二年级学生的现状，我主要采取学生活动的教学方法，让学生真正的参与活动，而且在活动中得到认识和体验，产生践行的愿望。培养学生将课堂教学和自己的行动结合起来，充分引导学生全面的看待发生在身边的现象，发展思辩能力，注重学生的心理状况。
当然教师自身也是非常重要的教学资源。教师本人应该通过课堂教学感染和激励学生，充分调动起学生参与活动的积极性，激发学生对解决实际问题的渴望，并且要培养学生以理论联系实际的能力，从而达到最佳的教学效果。同时也体现了课改的精神。
基于本节课内容的特点，我主要采用了以下的教学方法：
1、直观演示法：
利用图片的投影等手段进行直观演示，激发学生的学习兴趣，活跃课堂气氛，促进学生对知识的掌握。
2、活动探究法
引导学生通过创设情景等活动形式获取知识，以学生为主体，使学生的独立探索性得到了充分的发挥，培养学生的自学能力、思维能力、活动组织能力。
3、集体讨论法
针对学生提出的问题，组织学生进行集体和分组讨论，促使学生在学习中解决问题，培养学生的团结协作的精神。
由于本节内容与社会现实生活的关系比较密切，学生已经具有了直观的感受，可以让学生自己阅读课本并思考，并例举生产实践上存在的一些有关的 现象，在老师的指导下进行讨论，然后进行归纳总结，得出正确的结论。这样有利于调动学生的积极性，发挥学生的主体作用，让学生对本节知识的认知更清晰、更深刻。
五、说学法
我们常说：“现代的文盲不是不懂字的人，而是没有掌握学习方法的人”，因而，我在教学过程中特别重视学法的指导。让学生从机械的“学答”向“学问”转变，从“学会”向“会学”转变，成为真正的学习的主人。这节课在指导学生的学习方法和培养学生的学习能力方面主要采取以下方法：思考评价法、分析归纳法、自主探究法、总结反思法。
最后我具体来谈谈这一堂课的教学过程：
六、说教学过程
在这节课的教学过程中，我注重突出重点，条理清晰，紧凑合理。各项活动的安排也注重互动、交流，最大限度的调动学生参与课堂的积极性、主动性。
1、导入新课：（3—5分钟）
由上节课学过的知识和教材开头的情景设置导入新课。
导语设计的依据：一是概括了旧知识，引出新知识，温故而知新，使学生能够知道新知识和旧知识之间的联系。二是使学生明确本节课要讲述的内容，以激发起学生的求知欲望。这是生物教学非常重要的一个环节。
2、讲授新课：（30分钟）
在讲授新课的过程中，我突出教材的重点，明了地分析教材的难点。
还根据教材的特点，学生的实际、教师的特长，以及教学设备的情况，我选择了多媒体的教学手段。这些教学手段的运用可以使抽象的知识具体化，枯燥的知识生动化，乏味的知识兴趣化。 还重视教材中的疑问，适当对题目进行引申,使它的作用更加突出，有利于学生对知识的串联、积累、加工，从而达到举一反三的效果。
3、课堂小结，强化认识。（3—5分钟）
课堂小结，可以把课堂传授的知识尽快地转化为学生的素质；简单扼要的课堂小结，可使学生更深刻地理解政治理论在实际生活中的应用，并且逐渐地培养学生具有良好的个性。
4、板书设计
我比较注重直观、系统的板书设计，还及时地体现教材中的知识点，以便于学生能够理解掌握。 板书：
5、布置作业。
针对高二年级学生素质的差异，我进行了分层训练，这样做既可以使学生掌握基础知识，又可以使学有余力的学生有所提高，从而达到拔尖和“减负”的目的。
课堂作业：
【我为什么要这样上课】
一、对教材内容的处理
根据新课程标准的要求、知识的跨度、学生的认知水平，我对教材内容有增有减。例如：
二、教学策略的选用
（一）运用了模拟活动，强化学生的生活体验
教材这部分知识所对应的生物现象，学生具有了一定的生活体验，但是缺乏对这种体验的深入思考。因此在进一步强化这种体验的过程中进行了思考和认知，使知识从学生的生活体验中来，从学生的思考探究中来，有助于提高学生的兴趣，有助于充分调动学生现有的知识，培养学生的各种能力，也有助于实现理论知识与实际生活的交融。
（二）组织学生探究知识并形成新的知识
我从学生的生活体验入手，运用案例等形式创设情境呈现问题，使学生在自主探索、合作交流的过程中，发现问题、分析问题、解决问题，在问题的分析与解决中主动构建知识。
在引导学生思考、体验问题的过程中，可以使学生逐步学会分析、解决问题的方法。这样做既有利于发展学生的理解、分析、概括、想象等创新思维能力，又有利于学生表达、动手、协作等实践能力的提高，促进学生全面发展，力求实现教学过程与教学结果并重，知识与能力并重的目标。
也正是由于这些认识来自于学生自身的体验，因此学生不仅“懂”了，而且“信”了。从内心上认同这些观点，进而能够主动地内化为自己的情感、态度、价值观，并融入到实践活动中去，有助于实现知、行、信的统一。
结束：
各位领导、老师们，本节课我根据高二年级学生的心理特征及其认知规律，采用直观教学和活动探究的教学方法，以“教师为主导，学生为主体”，教师的“导”立足于学生的“学”，以学法为重心，放手让学生自主探索的学习，主动地参与到知识形成的整个思维过程，力求使学生在积极、愉快的课堂氛围中提高自己的认识水平，从而达到预期的教学效果。
我的说课完毕，谢谢大家。
说课教师：×××中学 ×××
表里的生物说课稿 八年级下册生物说课稿篇七
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