最新说课稿幼儿园 说课稿小学数学(10篇)
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说课稿幼儿园 说课稿小学数学篇一
能制定较为完满的教学方案,为数学课堂教学的改进提供前提条件。这主要包括:
(1)介绍课时教学内容的地位、作用和意义。说课中教者首先要阐述所备、所上的数学课在整个的一节、一章乃至整个小学数学全套教材中的地位、作用和意义,而不是孤立地看待某课时教学内容。这是由数学教材环环相扣、具有严密的逻辑性和序列性所决定的。
(2)提出本课时的具体明确的教学目标。
教学目标是课时备课中所规划的课时结束时要实现的教学结果。课时目标越明确、越具体,反映教者的备课认识越充分,教法的设计安排越合理。说课中要注意避免千篇一律地提出“通过教学,使学生能正确计算××习题”一类的套话,要从识记、理解、掌握、应用四个层次上分析教学目标。课时目标制定中还要提出思维能力和非智力因素方面的培养目标,包括思想品德教育渗透和兴趣、习惯培养目标。
(3)说说本课教学内容包含哪些知识点,教例是如何展示教学内容的,教材叙述语言与例题怎么俗配,按计么顺序展开的例题与习题的分布类型,其中的重点、难点内容是什么。
程序是否合理,符合认知规律,也是课堂教学是否优化的标准之一。数学说课中的教学程序有点近乎教案上的教学过程安排。在教案过程自己能清楚的可不必都写出来,而说课中不谈清楚,别人不一定都了解,详略、繁简不同;教案上重视具体教学内容安排,而说课介绍重视教学环节的次序和方式。备课只要备出是什么,说课不但要说是什么,还要说说为什么,让别人接受信服,内容构成不同。说教学程序,还得注意运用概括和转述的语言,不必直接照搬教案,要尽可能少用课堂内师生的原话,以便压缩实录篇幅。
引导学生学习数学所采用的主要方式。这是改进数学课堂教学的主要方面。比如,教学思路和策略上,可以选择目标教学的方法,尝试教学的方法,发现教学的方法,阅读自学的方法,组织小组讨论交流的方法等;教学信息和感知材料的呈现上,选用题组呈现或一题多变的方法,投影、录音的方法,教具模型演示的方法;在思维活动的组织上采取由实例列算式抽象的方法,从个别到一般的概括方法,由此及彼的类比推理方法,比较对照、区别异同的方法等等。指导学法方面,有指导学生阅读数学教材的方法。有组织学生按顺序有重点地观察的方法,有分析数量关系的方法,有安排学生操作、演示的方法等。叙述教法和学法,要注意坚持使教法学法有利于突出教材重点、突破难点,符合学生认识规律和年龄特征,不是为了翻花样,图形式花哨。
作业的安排和板书设计。练习作业是课堂教学中必不可少的活动,犹如工业生产中的“产后服务”。说课就要谈谈是如何安排练习作业的,比如从内容上围绕重点,巩固新知;从层次上逐层深化、拾级而上;从数量上适度适量,紧凑而可以完成等等。板书是教学内容的浓缩和集中反映,板书要醒目突出,具有内在合理性,要让人体察到教学的“序”,这就有必要在说课中予以陈述。当然有些数学课的板书并不都显得十分重要和突出,也可不必说。
一般数学说课材料都可从这四个方面去准备,但也不是面面俱到,眉毛胡子一把抓,总得有详有略,有的部分突出一些,篇幅多点,多说几句。
说课稿幼儿园 说课稿小学数学篇二
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说课稿幼儿园 说课稿小学数学篇三
教材分析
本节课是北师大版数学七年级上册第四章第五节的一节内容。这是新教材改版之后出现的一节内容,包括了多边形和圆的初步认识两部分内容,由于学生在小学已认识了许多平面图形,所以本节课难度不大。多边形部分主要是对之前所学知识的一个归纳总结,而圆的初步认识这部分内容是为九年级的后续学习做铺垫。
教学目标:
1.经历从现实世界中抽象出平面图形的过程,感受图形世界的丰富多彩。
2.在具体情境中认识多边形、正多边形、圆、扇形并能根据扇形和圆的关系求扇形的圆心角的度数。
3.在丰富的活动中发展学生有条理的思考和表达能力。
重难点:
重点:经历从现实世界中抽象出平面图形的过程,在具体的情境中认识多边形、扇形。 难点:探索分割平面图形的一些规律,感受图形世界的丰富图形,养成把数学应用于生活
实际问题的习惯.
为了解决本节课的重难点我充分发挥了多媒体教学的作用,让学生直观感受到所学知识,同时配合使用自学、合作探究的方法让学生自己感受知识的产生发展的过程。 教学方法
这节课我主要采用自学探究的方法来进行,让学生在自学的过程中发现问题,解答问题,然后再通过自学检查的过程对自己的自学情况进行评定,达到迅速掌握新知识的目的。这时再进行加强训练,使学生对知识的理解更加深入细致。这时再通过合作探究拓宽学生的知识,最后的练习帮助学生巩固知识。这样的设计,使学生对知识的掌握有一个由无到有,由浅入深的过程,学生更容易接受。
教学过程
由于本节课分为多边形和圆的初步认识两部分内容,所以本节课也要经历两次知识的产生和解决的过程。为此,确立如下教学过程:
多边形部分
(一)创设情境,引出课题.
出示幻灯片,让学生看一看这些图片中有哪些我们熟悉的平面图形。学生的答案会出现三角形、四边形、五边形、六边形等。教师对答案稍作点评,引出本节课的课题《多边形和圆的初步认识》。
【设计意图】通过漂亮的图片开头,马上就能吸引学生的注意力,调动学生的学习兴趣及动手动脑的欲望,激发学生思维,也充分的体现了数学源于生活,使学生感到数学就在我们身边。
(二)自学新知
课件出示导学提纲(一)自学课本p122,并回答问题。
自学结束后,找同学回答导学提纲的问题,检查自学情况。
教师注意学生的回答中出现的错误,特别是线段和角的表示方式,对出现错误的及时纠正。
【设计意图】通过让学生自学的方式来学习本节课的知识,既能够开发学生动脑思考的能力,又能够很好的完成知识记忆的目标,使学生在自学的过程中感受知识产生的过程,提高了学生的自主学习能力。
(三)拓展延伸
在学生记忆了概念的基础上出示做一做
做一做包括两个小题:
引导学生从普通的多边形开始思考,三角形、四边形、五边形、六边形,然后通过找规律的方式得出n边形的相关知识。
【设计意图】这样的设计旨在探讨多边形的各项数量关系,使学生通过观察、归纳、猜想获得对多边形的进一步认识,开发了学生的思维能力以及归纳推理能力。
(四)合作探究
小组交流合作,共同完成议一议。
通过合作,小组共同得出答案:各边相等,各角也相等
根据学生的答案引出正多边形的定义
各边相等,各角也相等的多边形叫做正多边形
共同得出图4-23中各多边形的名称:正三角形、正四边形(正方形)、正五边形、正六
边形、正八边形
【设计意图】运用小组合作交流的方式,既培养了学生的合作意识和能力,又达到了互帮互助以弱带强的目的,使学习比较吃力的同学也能参与到学习中来,体现了学生是学习的主体。
(五)练习巩固
这部分准备了三个小题,主要是对多边形部分内容进行巩固。
这三个题目难度各不相同,所以教师尽量让不同层次的学生回答,争取让所有学生都有展示自己的机会。
【设计意图】本环节的练习题分成了不同的层次,这样会尽量的照顾到所有的学生,使学习吃力的同学也能参与到问题的回答中来,体现自己的价值。同时又让优等生在知识方面得到了进一步的加强与巩固。
圆的初步认识部分
(一) 复习引入
课件出示图片,回顾以前学过的圆和扇形,通过flash动画演示圆的形成过程。帮助学生回忆旧知识。
【设计意图】通过生活实例让学生直观感受圆和扇形的特征,再通过动画的形式画出圆,抽象出圆的动态定义,加深学生对知识的理解。使学生感受数学来源于生活。
(二)自学新知
出示导学提纲(二),自读课本123页,并回答下列问题
1、什么样的图形叫做圆?
2、找出右图中的半径、圆弧、扇形和圆心角。
3、会读写圆弧。
学生独立完成自学
教师检查自学情况。
学生自己在练习本上练习圆弧的写法,并读出来。
【设计意图】通过让学生自学的方式来学习本节课的知识,既能够开发学生动脑思考的能力,又能够很好的完成知识记忆的目标,使学生在自学的过程中感受知识产生的过程,提高了学生的自主学习能力。
(三)拓展延伸
在学生记忆了概念的基础上出示例1
【设计意图】通过例题让学生了解这部分内容的解题思路和解题方式,加深知识的深度,提高学生能力。
(四)合作探究
小组交流合作,共同完成议一议。
1、如图4-25,将一个圆分成三个大小相同的扇形,你能算出它们的圆心角的度数吗?你知道每个扇形的面积和整个圆的面积的关系吗?与同伴进行交流
2、画一个半径是2cm的圆,并在其中画一个圆心为60o的扇形,你会计算这个扇形的面积吗?与同伴交流。
教师对答案进行汇总,讲解本题解题思路:
1、因为一个圆被分成了大小相同的扇形,所以每个扇形的.圆心角相同,又因为圆周角是360o,所以每个扇形的圆心角是360o÷3=120o,每个扇形的面积为整个圆的面积的三分之一。
2、先求出这个圆的面积s=πr2=4π,60÷360=1/6扇形面积=4π×1/6=2π/3
【设计意图】运用小组合作交流的方式,既培养了学生的合作意识和能力,又达到了互帮互助以弱带强的目的,使学习比较吃力的同学也能参与到学习中来,体现了学生是学习的主体。
(五)练习巩固
联系巩固设计了两个题目,这两个题目难度适中,请一名学生板演,教师订正答案,注意学生的解题步骤。
【设计意图】本环节的练习题旨在巩固学生圆部分所学知识,加强学生的解题能力,将学生所学知识充分开发,培养学生的思维能力。
小结:
今天这节课什么收获?
多边形:
①多边形的对角线
②过n边形的每个顶点有(n-2)条对角线
③正多边形的特点
圆的初步认识:
①圆弧的读法和写法 ②扇形和圆心角 作业:
课本习题4.5知识技能1、数学理解
说课稿幼儿园 说课稿小学数学篇四
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说课稿幼儿园 说课稿小学数学篇五
《8的乘法口诀》是二年级上册(人教版)第六单元表内乘法的内容,乘法口诀是表内乘、除法计算最基础的知识之一,对今后进一步学习乘法除法计算具有重要的作用。教材的呈现是在学生学了2~7的乘法口诀以后学习的,所以教材的呈现形式没有给一个完整的乘法算式和一句完整的口诀,意在让学生主动归纳出8的乘法口诀,体现了学生学习独立性要求的编写意图。
知识与技能目标:
⑴、经历独立探究,编制8的乘法口诀的过程,体验8乘法口诀的来源。
⑵ 、理解每句乘法口诀的意义,初步熟记8的乘法口诀,能用乘法口诀进行简单的计算。
过程与方法目标:
通过编制口诀,初步学会运用类推的方法学习新知识。
情感、态度、价值观目标:
培养学生合作学习的意识,激发学生的学习兴趣,让学生体验生活中处处有数学,会用学过的数学知识解决问题。
教学重点:
让学生理解8的乘法口诀的形成过程。
教学难点:
掌握口诀的特征,并熟记口诀。并用口诀进行简单的计算。
开始上课,我就为学生设计了闯关游戏,在游戏结束时,创设生活情境引入新课,并让学生通过小组合作、探索交流尝试编写乘法口诀。因此本节课主要采用情境教学法、尝试教学法、游戏教学法进行教学。
新的数学课程标准中明确指出:除接受学习外,动手实践、自主探索与合作交流也是数学学习的重要方式,因此本节课主要采取自主探索与合作交流的学习方法,进行自主学习。
游戏:闯关
1、第一关:口算下面各题,并说出用哪一句口诀。
46= 73= 55=
27= 56= 45=
指名回答,并说出用了哪一句口诀
2、第二关:蓝猫跳数轴
引导学生理解题意,并独立完成。
1、学校的仪仗队有哪些乐器?
2、每一行有多少人?
3、第一行和第二行一共有多少人?
4、你还能提出什么问题?
学生同桌讨论,再汇报。
1. 由蓝猫跳数轴引出一个8至8个8的连加。
师:“再来看看蓝猫又干什么?”(电脑演示)
师: “这是蓝猫,它可爱运动了,是我们数学王国的运动健将哩,你看,它又在那里跳了。”(展示数轴)
师:“请小朋友一起来观察一下,蓝猫是怎么跳的?蓝猫第一次从0跳到了几?”
师:“接下来它要顺着数轴继续跳,每次跳的长度与第一次相同,那么蓝猫第二次会跳到几呢?”
师:“谁能来说说为什么?”
师:“那么蓝猫第四次、第五次第八次分别能跳到哪里呢?说说为什么。”
学生反馈。
师:“求几个8相加什么方法更简便?”(乘法)
反馈引导学生列出乘法算式
1、学生同桌讨论,编出8的乘法口诀
2、引导学生根据8的乘法口诀写出另一个乘法算式。
3、这些算式有什么相同点?(都有数字8)
这就是我们今天要学习的8的乘法口诀(板书课题)
师:“蓝猫在背口诀时,直挠头,忘了六八得多少,怎么办?”
学生探讨,汇报。
(用前一句口诀的得数加上8,或用下一句口诀的得数减去8。)
1、智慧树
师:“这是一颗智慧树,只有有智慧的同学才能让它结满成功果实。”
2、一只螃蟹八条腿
这节课你学到了那些知识?
背诵8的乘法口诀
8的乘法口诀
18=8 一八得八 81=8
28=16 二八十六 82=16
38=24 三八二十四 83=24
48=32 四八三十二 84=32
58=40 五八四十 85=40
68=48 六八四十八 86=48
78=56 七八五十六 87=56
88=64 八八六十四
说课稿幼儿园 说课稿小学数学篇六
1、说教材
(1)幼儿看图讲述活动应以图片为主,所以绘本《胡萝卜种子》用ppt形式展示图片内容。
(2)图片中人物鲜明,背景简单,篇幅大小合适,前后图片前后之间有一定联系,有一定动作和表情,能从图片中了解角色的心理活动,均符合中班幼儿教学活动。
(3)绘本故事按照循序渐进原则,逐步递进,不断给儿童提出新的要求,使儿童在原有的的水平上,语言表达能力和思维能力都有一定的提高,并在看图讲述活动中帮助儿童扩展语言经验,在活动中获得快乐,健康成长。
2、说学情
中班幼儿一般在4—5岁表现为活跃,能依靠自己的具体生活经验,理解成人的语言。容易注意具体的形象,因此在讲述活动中应以情景性语言为主。
(1)让幼儿感受故事中的人物情感和可爱的精神。
(2)知道做任何事都不能半途而废,只要付出努力就一定会有收获。
(3)模仿故事内容,能用较完整的语言讲述故事,如“大大的,红红的”。
1、《胡萝卜种子》ppt课件
2、一盆没有发芽的植物,和一盆发芽的植物。
重点:让幼儿感受到萝卜种子最终发芽后小男孩的快乐。
难点:让幼儿根据图片内容给故事起名字。
1、教法
(1)运用拍手的课前律动活跃气氛
(2)实物导入:出示没有发芽的植物,提出开放性的问题,“小花会不会发芽”来引出故事。
(3)放映ppt进行首页展示:引导幼儿观察主题
(4)然后开始逐幅出示图片,并以次提出描述,回忆性问题,帮助幼儿加深对故事的理解。
2、学法
(1)以实物展示的方式,根据幼儿生活经验,激发幼儿兴趣。故事开始一空花盆展示,让幼儿产生联想,活动结束展示发芽的花盆,给幼儿惊喜。
(2)让幼儿根据自己的理解给故事起名字,让幼儿在这一过程中快乐的学习故事中的语言。
(3)用猜猜看的游戏让幼儿激发幼儿兴趣,让有积极思考。
给小朋友们每人发小花盆带回家在父母的帮助下种植自己喜欢的植物,带回幼儿园放在班级植物角,参与照顾观察。
说课稿幼儿园 说课稿小学数学篇七
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说课稿幼儿园 说课稿小学数学篇八
1、 教材的地位和作用
《我和动物交朋友》是品德与生活第四册第二单元《让家园更美好》中的第四个主题。动物和我们人类共同生活在地球上,要学会和动物和谐相处,懂得关心动物就是关心人类自己。设计此课,旨在从爱护动物出发,对学生进行珍爱生命的教育。
2、 教学目标
[1].知识与技能。
(1)知道动物是人类的好朋友。
(2)了解动物给人们生活带来的重要作用。
[2].过程与方法。
(1)利用信息技术手段,探讨动物作为人类朋友的作用。
(2)利用信息技术手段等多种方法,创设问题情境,师生共同探讨动物与人的亲密关系。
[3].情感、态度与价值观。
(1)喜欢和动物交朋友。
(2)培养保护珍稀动物的意识。
(3)学会与动物和谐相处,懂得有爱心地生活,爱护动物。
3.教学重、难点:
喜欢和动物交朋友;能够善待动物,知道戏虐动物的行为是错误的;知道要保护珍稀动物。
教学中为体现生活性的课堂教学,我以情为线索,利用多媒体课件辅助教学,用真实的小动物与学生交流,结合学生实际,创设活动的情境,充分发挥儿童的各种感官,动脑、动手,积极思考,逐渐完成主题目标。
本节课教学中主要是结合具体真实的小动物和学生日常生活经验,创设情境,引导学生思考、交流、感受、体验、表达真情实感。学生在如生活般的活动中学习关于动物的知识,在兴趣盎然的活动中生成必要的品行修养。
四、课时安排:
本课安排两课时,本堂课是第一课时。
五、教学流程设计
这节课我充分体现《品德与生活》这门课生活性特征,教学过程中的激情、明理、导行等环节都来源于生活、立足于生活、指导于生活。具体我设计了以下几项活动:
活动一:我喜欢的动物
1. 谜语导入:口述几条有关动物的谜语让学生猜
猜谜语是学生很感兴趣的一项游戏活动,通过猜谜语自然而然地引出动物这个话题,课堂之初就会调动起学生学习的兴趣和积极性,为整堂课开一个好头。
2欣赏录像:一段各种动物的视频录像
在教学中充分发挥多媒体课件的辅助功能,通过大屏去感染学生,把学生从课堂带入生动的大自然当中去,真切地去感受动物的可爱,激发学生对动物的喜爱之情。
3小组交流自己最喜欢的动物,为什么最喜欢它。通过小组交流,学生能初步表达自己对动物的喜爱之情。
4全班交流介绍自己最喜欢的动物。
这个环节,我设计了游戏的活动形式:猜猜我是谁。让学生不直接说出自己最喜欢什么动物,而是以模仿动物的动作、叫声或说一条有关它的谜语让大家猜来介绍,然后再说说为什么最喜欢它。通过此游戏活动,可以发展学生个性的创意与表现,学生热情高涨,使课堂气氛进一步升温。
活动二:动物之最知多少
激励学生:动物这么可爱,又这么讨人喜欢,那你们有什么愿望吗?(和动物交朋友),那老师先要考考你们,看你们对动物是不是很了解,你们愿意接受测试吗?
动物之最知多少
——世界上最高的哺乳动物是什么?
——世界上最大的哺乳动物是什么?
——世界上最大的鸟是什么鸟?
——世界是最小的鸟是什么鸟?
——世界上飞行最快的鸟是什么鸟?
——世界上短跑最快的动物是什么?
我把测试题配以课件说明,既考查、拓展了学生的知识面,又提升了学生热爱自然,热爱科学的情感与态度。
活动三:我和动物交朋友
1.此环节我先用多媒体课件出示人和动物亲密接触的画面,以真实的画面去感染学生,激发学生也想和动物交朋友的热情。
然后创设活动情境:和小猫交朋友
让真实的小猫走进我们的课堂,让学生有机会与动物零距离接触,因为学生都愿意与小动物进行亲密接触,这与儿童的年龄和心理特点都是密切相关的。在这项活动中,我让学生和小猫打招呼、轮流摸摸它、给它取名字、喂食、夸夸它……从而让学生在如生活般的活动中学会了如何与动物交朋友,这也正体现了品德与生活课生活性的 特征,以正确的价值观引导学生在生活中发展,在发展中生活。
然后再利用课件出示学生还喜欢的动物,这个环节主要是为引出明明和小鸟的故事而设的。
2.故事:明明和小鸟的故事
这个故事 我以多媒体课件的形式再现故事情节,增强了故事的感染力,看完通过让学生思考:明明也想和小鸟交朋友,可为什么却把它放走了呢?从而让学生认识到要和动物成为真正的好朋友,需要了解、尊重动物的生活习性,对待动物要有爱心和责任心,初步明确了如何与动物和谐相处。
活动四:表达喜爱之情
1.欣赏动画歌曲《我有一只小毛驴》、《两只老虎》。这种配以精彩画面的歌曲极具感染力,增强了学生的人与动物和谐相处的意识,教育意义也是很深刻的。
2.学生表演有关动物的歌曲,或画画自己喜欢的动物,让学生以自己喜欢的方式抒发对动物的喜爱之情,旨在发展儿童的创造性和动手能力,充分展现并提升自己的智慧,享受创造带来的欢乐。
六、新理念、新《课标》精神在教学中的体现
我觉得自己设计的这节课,最大的特点之一就是让小动物走进课堂,让孩子在与真实动物的亲密接触中感受着与动物做朋友的乐趣,构建了一个真实互动 的生活化课堂,使课堂教学更有现实感,更贴近学生的生活。这也正体现了品德与生活课的生活性、开放性、活动性的基本特征。
多媒体的恰当使用扩大了教学的容量,使学生更直观地感受到动物的可爱。而且节约了课堂教学的时间,提高了教学的效果。
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