在日常学习、工作或生活中,大家总少不了接触作文或者范文吧,通过文章可以把我们那些零零散散的思想,聚集在一块。相信许多人会觉得范文很难写?这里快回答为大家分享了11篇最新说课稿ppt,希望在说课稿ppt的写作这方面对您有一定的启发与帮助。
说课稿数学 说课稿ppt 篇一
“圆的认识”是九年义务教育六年制小学数学第十一册第四单元“圆”中的第一节课。这节课的内容包括:圆的特征、圆心、直径和半径。
“圆的认识”是在学生直观认识圆和已经较系统地认识了平面上直线图形的基础上进行教学的。它是学习曲线图形的开始。它与“圆的周长和面积”、“轴对称图形”的学习关系十分密切。所以正确树立圆的表象,掌握圆的特征,是本课的首要任务。
根据教学内容、教学大纲要求以及学生的认识特点、年龄特征确定本节课的教学目标为:感性目标:使学生认识圆,掌握圆的特征;理解和掌握在同一个圆里半径和直径的关系。
理性目标:让学生通过观察、实验、等数学活动过程认识圆,进一步发展空间观念和初步的探索能力,感受到圆的美。
本节课的教学重点是掌握圆的特征;理解同圆或等圆中半径和直径的关系。因为这是今后系统地学习“圆”的知识的重要基础。
根据教学内容知识间的内在联系和学生的认知规律,遵循教学有法,教无定法,贵在得法的原则:
1、根据本节课的教学内容及学生的认识水平和认知规律,这节课采用演示、操作等直观方法进行教学。通过教师的教具演示和学生的画、折、量等动手操作,使学生获得充足的、丰富的感性材料。在充分感知的基础上,通过叙述操作过程,把感知经过思维转化为表象,并在教师的指导下,抽象概括出圆心、半径、直径等概念。
2、在教学中充分利用学生生活中的问题,引导学生通过自主学习去思考问题,掌握知识。认识圆的特征,探索求圆的特征的方法,使学生在自主的活动中学会学习。
进行了如下设计:
(闭眼联想)八月十五,中秋,全家人团聚一起,品月饼,赏圆月当空。门前是一片平静的湖面,一滴水从上面滴入后,在水面上荡一圈圈水纹。在这一句话中你感觉到这些景色美吗?那些事物与景色与本节课内容有关?
1、初步感知圆
首先让学生举例说明生活中哪些物体的形状是圆的。让学生初步从生活中感知圆,培养空间想像能力, 形成正确表象——圆是一种平面上的曲线图形。
(1)找圆心
首先让学生把事先准备好的圆形纸对折后打开,用笔和直尺把折痕画出来,并在圆形纸的其他位置上重复上面的折纸活动二、三次。操作后,问:“你发现了什么?”学生亲手操作后,发现所有的折痕都会相交于一点。这些折痕都相交于一点,正好在圆的正中心,我们数学上把这一点叫作圆心,用字母“o”来表示。设计意图:通过学生的直观操作,使学生的学习过程“动作化”,调动学生多种感官参与学习,并有意设置一些认知冲突,让学生积极主动地参与知识的形成过程。
(2)认识半径、直径,采取学生独立与文本对话,教师组织学生分析关键字眼的方法进行。设计意图:培养学生阅读文本,对话文本能力。
(3)半径和直径的关系
分组讨论利用“研究发现单”定出研究目标,在一个圆里,半径和直径有什么关系?通过测量和比较,让学生理解和掌握在同一个圆里半径和直径之间的关系,让学生用含有字母的式子表示半径是直径的一半、直径是半径的2倍关系。得出d = 2r与r = 2/d的字母公式,并在练习中通过填表强调了圆内半径与直径的对应关系,还要求学生在圆内一些线段中,找出半径和直径。 设计意图:合理发挥学生的主体作用,让学生动脑、动手、动口、动眼,自主探索知识的形成与发展,并及时巩固学习成果。
练习是巩固新知,形成技能的重要手段,对学生的创新思维能力的培养起着举足轻重的作用,这一部分可通过一些拔高练习达到知识的进一步深化。有机地配合新知的学习,讲练结合,最大限度地发挥习题发展学生思维能力的作用
1、课后作业88页1—4
2、判断题。(对的打“√”,错的打“×”)
经过圆心的线段都是直径。()
所有连结圆上两点之间的线段中,直径最长。()
直径是4厘米的圆比半径是2厘米的圆大。( )
3、猴子造车,一辆轮子是方的,一辆轮子是圆的。
通过“这节课你学会了哪些知识?你最大的收获是什么?你还有什么知识要提出来?”来使学生进一步内化所学的知识,自主地完善自己的认知结构。
板书设计: 圆的认识
圆心:用字母“o”表示。
直径:通过圆心并且两端都在圆上的线段;用字母“d”表示。
半径:连接圆心和圆上任意一点的线段;用字母“r”表示。
在同一个圆里 d = 2 r 或r = 2/d
说课稿数学 说课稿ppt 篇二
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说课稿数学 说课稿ppt 篇四
一、说教材
今天我要说的是苏教版小语第五册语文教材中第22篇课文《金子》。课文讲了彼得·弗雷特在淘金无望,便留下种花,终于获得成功的故事。旨在告诉我们要获得财富或成功就必须付出辛勤的劳动,想靠意外的收获是不现实的。课文内容简明,情节曲折,蕴含的道理深刻,是一篇人文性较强的培养学生观察、想像及朗读能力的好材料。“金子”在课文中出现了多次,含义也各不相同。对于学生来说,理解“真金”的含义,体会彼得获得成功的过程,是教学的重点,也是教学难点。因此,我在设计教学时关注了以下几点:
1、努力创设情境,帮助学生走进文本。
我通过引导学生找重点句,抓关键词,创设各种情境,指导感情朗读将学生带入文本,感受彼得在淘金无望时的孤独无助以及种花成功的喜悦。
2、坚持“对话”理念,引导学生理解课文。
课堂上通过学生、教师与文本之间对话,讨论、交流,培养学生理解、欣赏和评价的能力。
3、激发学生的想象,引导学生体验“生活”。
给孩子一个轻松愉快的环境,使孩子充分发挥想象。在交流,体验中感悟“不劳而获只能是个幻想,辛勤劳动才会梦想成真。”“坚持+智慧+勤劳=成功”“劳动创造一切。”
为此,根据课程改革和语文新课程标准的基本理念,我确定如下教学目标:
1、运用已有的识字经验和方法,学会“坑、附”等10个生字,理解新词,能正确、流利、有感情地朗读课文,通过 对 课文的诵读品味,读懂课文内容。
2、以学定教,通过创设情境,讨论、朗读等方式来培养和提高学生语言感悟能力、朗读能力和评价能力。
3、体悟彼得·弗雷特是靠自己辛勤的劳动,终于获得了成功,让学生懂得想要通过意外的收获获得财富或成功是不现实的,必须付出诚实劳动的道理。
二、说教法
由于本篇课文是一篇人文性较强的文章,所以我在本课教学中主要使用了朗读感悟法。
三、说学法
阅读是学生的个性化行为,本课教学中我确定了本课学生的学法以朗读感悟为主,引导学生通过朗读探究性、创造性地感受、理解、评价和鉴赏文章。进而培养和提高学生的思维能力,超越文本,链接生活。
四、说教学过程
根据本课的的教学目标以及第二学段的要求确定,1、2两个目标是教学重点。“金子”的本意是指物质层面的“贵重金属”,而在课文中,“金子”是指
诚实、勤劳的高尚品质。本文用“金子”做题目,同时又以“金子”为线索,贯穿全文,因此,理解“金子”的含义,深化学生的阅读感受是教学难点。我准备安排两课时引导学生达到预设的学习目标。
第一课时:引导学生把课文读正确、读流利,通过图文对照,从整体上感知课文内容,获得初步的情感体验:在语境中理解生字新词,指导两个字“甘”(独体字,注意笔顺)“钱”(左右结构,形声字),注意“盆”和“坑”音节,引发猜想,建构阅读话题,能基本说出本故事的大意。
第二课时:借助多媒体,创设情境,引导学生反复有感情地朗读课文,帮助他们读懂课文内容,了解彼得·弗雷特通过辛勤劳动获得真金的曲折过程,教育学生向彼得·弗雷特学习,培养自己靠诚实、勤劳获得成功的高尚品质。另外,引导学生在反复诵读课文的基础上,开展语文实践活动,进一步激发情感,引导学生积累丰富的语言。
下面,我着重讲第二课时的教学:本课时我打算分四个环节进行组织教学: 复习旧知,精读感悟,拓展延伸,个性作业。
下面我具体地来说一下:
第一环节:复习旧知。
我先引导学生有感情地朗读词语,接着启发学生交流初读课文后所了解的知识,然后根据学生回答,引导质疑“彼得的梦想是什么?他实现了吗?你是从哪里知道的?学生自然而然的就顺着我的问题注意到最后一段的课文,然后引出彼得的话:我是唯一一个找到真金的人,我的金子就在这片土地里,引导出问题:彼得是怎样找到真金的?这是课文的重点也是难点,所以我在上课后不久就提出,目的是让学生有充足的时间去思考。通过这一统领全文的问题,引导学生再次走进文本,去细细地感受。
第二环节:精读感悟,悟中明理。
1、阅读是学生的个性化行为,重在自悟。我以一个开放性的问题“彼得是怎样找到真金的?”要求学生默读课文,边读边划出课文中自己找到的句子。要求先读有关句子,再体会体会。在全班交流时,我以学定教,根据学生的发言相机地出示词句,加以适时点拨。具体指导,品读体味。如学生在自读第一自然段的基础上,扣住“听说、无意”明白消息的不确定性,但淘金者们仍“蜂拥而至”,体会他们缺乏理智,盲目跟从。接着抓住“一无所获、扫兴离去”,体会人们怀着失望离开的不幸。通过对淘金者们由“高兴”至“扫兴”两种截然不同的感情地进一步对比感知,指导有感情地朗读。学习第二自然段时,抓住“埋头苦干、几个月、几乎翻遍了”理解从精力上、时间上、工作量上说明彼得作的别人无法比拟的巨大付出,通过朗读让学生体会彼得是能吃大苦、耐大劳的人,但结果是“没有发现一丁点儿金子”,让学生明白上文的传说的不可靠。在品读词句的基础上,体会彼得由“希望”转向“失望”的失落心情,再次练习个性化朗读。在交流第五自然段时,我让学生读好词语“若有所悟”,并说说彼得“悟”到了什么来具体地展开学习。如“这里没有找到金子”,让学生边读边思考:彼得本来要离开,是什么使他留下来?留下后又是怎么做的?引导学生读好文中相应的句子,并描述一下彼得看到的情景,体会希望的产生,明白这希望就在这肥沃的土地里,正是这希望使彼得留下来。再让学生观察插图,想象彼得是怎样用“全部精力”种花的,此时,我出示图片:每天太阳刚刚升起,彼得就要-----;当夜幕降临时,彼得要------;在炎炎烈日中,彼得要-------;在大雨如注时,彼得要--------。等等,一方面是为了锻炼学生说话的能力,另一方面也让学生们
从内心体会彼得所经历的困难,为下面揭示真金买下铺垫。接着,我把重点放在理解彼得所说的话是什么意思上。让学生思考:彼得从这块土地里究竟获得了什么?你能悟到些什么呢?学生通过交流,知道彼得并非获得真的金子,而是获得了“财富”。最后学生畅谈感悟的基础上归纳:只要勤劳耕耘,任何土地都会奉献出你需要的“财富”。 抓住“不“不无骄傲”、“唯一”等词语,引导学生体会彼得非常自豪的心情,练习个性化朗读。
第三环节:拓展延伸,畅谈梦想。
这个环节是建立在理解文章基础之上,让学生畅谈自己的梦想,培养学生语言表达能力,同时把文本与学生实际联系起来。最后配乐朗诵《梦想》,鼓励学生通过自己的辛勤劳动来实现自己的梦想。
第四环节:个性化作业。
本环节本着语文课程标准要求“关注学生的个体差异和不同的学习需求”的准则,另外,进入中年段以后,阅读教学应拓展学生的阅读范围,拓宽视野,拓展和增加有效的积累,让学生个性作业,可以提高学生的语文素养。
五、说板书设计
板书设计上,我力求简单明了。抓住彼得实现梦想过程中的几个关键性词语,概括文章的主要内容,步步引导,让学生明确只有勤劳才能致富的道理,明白这就是彼得取得的“真金”
说课稿ppt 篇五
本课依据“健身育人,健康第一”课程理念,通过亲身体验、设疑解惑等教学策略,遵循循序渐进的原则,设计由易到难的教学流程。教学中,给予学生一定的时间与空间,让他们在学习过程中感受学习的乐趣,增强展现自我的信心。
1、本节课的教学内容1支悬:推小车4-1 2.综合活动:钻山洞2-1
2、教材分析
本课的“支撑与悬垂”属于《体育与保健》四年级第二学期内容,主要发展学生上肢力量及身体协调等能力。四年级支悬共4课时,本课是第一课次。在本课中希望学生能体验不同的支撑姿态,由易到难,由单人至双人的配合,递进式的学会正确的支撑方法。让自己力量及协调等素质提高的同时能充分展示自我,增强自信。
综合活动——钻山洞,共两课时。钻山洞是需要学生运用已经学会的知识进行合作性的游戏,并体会不同支撑姿态的不同要求,让学生在游戏中掌握知识,在合作中迈向胜利。
1、教学对象:四(6)班
2、基本情况:该班学生活泼好动,对体育活动有广泛兴趣,喜欢学习别人的。运动技巧并进行攀比。自信心强,但有时过高的估计自己的能力,还存在着缺乏合作精神等不良倾向。
1、支悬:推小车4-2
2、综合活动:钻山洞2-1
1、学习“推小车”原地支撑的方法并能保持直臂支撑动作至少10秒。
2、学习“钻山洞”的方法与规则。
3、体验支撑时的身体姿态,发展上肢力量,提高身体协调能力。
4、增强学生自信心,养成相互协作的好习惯。
重点:直臂支撑
难点:正确直臂支撑姿势
小干部整队后师生问好,教师宣布上课内容,学生进入上课状态。
“同学们,以前我们玩过速跑加分的游戏还记得吗?”“今天老师将加大游戏难度,你们还能获得胜利吗?”通过提问激发学生的好奇心和好胜心,将他们的注意力聚拢于游戏中。在小组长的带领下,学生延固定路线慢跑,当听到或看到老师给出的号码,相应号码的学生快速跑向教师拍击手掌,记分为3.2.1最后的0分,最终获得分数最多的组获胜。
思考:充分利用四年级学生争强好胜的心理,以一个竞争性较强的游戏作为热身
活动,使学生的注意力快速集中,为后面的主教材教学营造一个良好的学习状态。
通过教师的引导“今天老师要看看同学们能利用双臂支撑,摆出多少种造型呢?”启发学生去尝试各种用单臂、双臂、蹲撑等适合自身能力的支撑姿态进行练习。学生在练习过程中教师适时提出问题“我们在支撑的时候双手的距离,手臂的状态,以及肩部的感觉是怎么样的呢?”让学生不仅要体验支撑时的身体姿
态,还要根据教师的提问寻找答案,然后教师将问题由上肢开始向身体姿态延伸,最终得出正确的支撑方法(直臂顶肩—收腹—不塌腰—不提臀—身体成一直线)。随着大部分同学掌握正确的方法后,教师顺势由单人练习过渡到双人配合支撑,在问题引领下,帮助同学们了解原地单人支撑和双人“推小车”支撑的的共同点和不同点,不断完善动作。最后,在激励游戏“比一比”中,看哪一组小车坚持的时间最长,哪一组的姿态最棒!教师引导学生积极评价并进一步体会“推”的方法与“小车”支撑的姿态。
思考:整个过程由易到难,学生的练习重点与问题同步进行,都是由上肢慢慢延
伸至身体,让他们始终带着思考去练习,不仅能增加学生学习的积极性,更能提高练习的实效性。“比一比”的游戏也为学生提供了展示自我,增强自信的平台。
教师将队伍分成若干组,每组5人,学生紧挨一起手撑地提臀成山洞,由第一个学生以爬行姿势开始过山洞,过了山洞后立刻组成新的山洞,依次类推直至最后。最终速度最快的组获胜。当学生了解方法和规则后开始第一次的尝试,教师提出问题“游戏中两个角色应该怎么做才能更顺利的游戏呢?”学生在这个时候体验与思考同时进行着,教师不时的引导让学生得出最佳方法(“山洞”要高,尽量提臀。过“山洞”要低,低进低出。)
思考:“钻山洞”是一个让学生体会协作的过程。学练中,教师的引导,学生寻
找合理的方法,师生逐步完善活动方法,通过比赛,感受胜利的喜悦,通过游戏间的合作交流养成团结协作的好习惯。
通过教师提示,比如:大象的走是怎么样的(沉重)猫的走是?(轻灵)等等,随着提示学生尽量将自己的理解演绎出来。表演好的同学请他来给大家出
说课稿数学 说课稿ppt 篇六
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说课稿ppt 篇七
《每周干家务活的时间》是北师大版教材八年级数学下册第五章第一节的内容,本套教科书采用螺旋上升的编排方式。本节课通过丰富的实例,了解总体、个体、样本,普查和抽样调查等概念,让学生体会不同的抽样可能得到不同的结果,感受抽样的必要性。通过学习,让学生会选择合适的调查方法,解决生活中的实际问题。在同学们充分的讨论、广泛的交流下扩大了学生的思维视野,提高了学生的认知,培养了学生的合作精神和交流意识,发展统计思想,体会德育价值。
1、了解普查、抽样调查、总体、个体、样本等概念,以及普查和抽样调查的应用。并选择合适的调查方法,解决有关现实问题。
2、经历调查、收集数据的过程,感受抽样的必要性,选择合适的调查方法,解决有关现实问题。
3、进一步发展统计思想,培养学生热爱劳动、勇于实践的优良品质。
1、重点:了解普查、抽样调查、总体、个体、样本等概念,感受抽样的必要性。
2、难点:选择合适的调查方法,应用多样的方式解决实际问题。
指导探索法;讨论法、
本章导入
随着信息技术的发展,数字化时代的到来,人们每天面对着大量的数据,从国民生产总值到天气预报,从人口预测到股票投资,统计存在于国民经济和日常生活的各个方面。数据处理也因此变得更加重要。具有统计的基本知识已成为每个现代公民必备的素质。
(在导入新课的过程中体现了学习数据的收集与处理的重要性和必要性。)
1、活动与探究
同学们,你们每天在家都帮父母做家务活吗?主要做些什么呢?每周大约多长时间呢?
你们每周干家务活时间的平均数、中位数、众数是什么?
教师活动:提问平均数、中位数、众数的概念。
学生活动:全班先分四组进行数据汇总,得到本组同学每周干家务活的平均数、中位数和众数,在进行各小组汇报、交流。
【通过对这些调查活动的分析,引入普查、抽样调查、总体、个体、样本等概念】
2、介绍新知识
(1)普查:为了一定的目的而对考察对象进行的全面调查。
(2)总体:所考察对象的全体。(如上述问题中的总体为“全班同学每周干家务活的平均时间的全体”,注意这里“考查对象”不是学生而是学生干家务活的时间。)
(3)个体:组成总体的每一个考察对象。(如上述问题中的个体为“全班每一个同学每周干家务活的平均时间”)
为了准确了解全国人口状况,我国每10年进行一次全国性人口普查,在考察我国人口年龄构成时,总体是什么、个体是什么?
总体:就是具有中华人民共和国国籍并在中华人民共和国境内常住人口的年龄。
个体:就是符合这一条件的每一个公民的年龄。
教师活动:教师引导学生,这里所说的“考察对象”是指表示事物某一特征的数据,如对全国人口普查时,考察对象是我国人口的“年龄”。
学生活动:结合课本176页的统计图四人一组进行讨论,知道大概的年龄结构。
讲一个笑话对原有的情境进行变式,引起学生对普查局限性的思考,从而引出抽样调查,感受抽样的必要性。【“儿子,帮妈妈买盒火柴去”“这次注意点,上次你买的火柴好多划不着。”………儿子高兴的跑回来。“妈妈,这次的火柴全划得着我每根都试过了”笑过以后,谈谈你的看法】
议一议
1、全国所有八年级学生每周干家务活的平均时间是多少?你能用普查的方式得到这个数据吗?你准备如何获得这个数据?与同伴交流。(鼓励学生解决方式的多样性)
2、我们班上有多少男生?全校呢?全会宁县呢?全白银市呢?全省呢?全国呢?你准备用什么方式获得这些数据?(鼓励学生解决方式的多样性)
3、你能用普查的方式调查某一天你所在地区的人口流量吗?(由于每个人离开某地的方式不同,且受到时间等条件的限制,一般无法对所有的个体进行普查,有说普查的也应该鼓励。举生活中的实例)
4、你愿意采用普查的方式了解一批日光灯管的使用寿命吗?(由于检查日光灯的使用寿命时,对日光灯管会造成一定的破坏,一般用抽样的调查方式)
【普查的困难】
1、总体中的个体数目较多,工作量较(太)大,无法一一考查;
2、受客观条件的限制,无法对个体一一考查
3、考查具有破坏性,不允许对个体一一考查
解决的办法:抽样调查。
【抽样与样本】
从总体中抽取部分个体进行调查,这种调查称为抽样调查,其中从总体中抽取部分个体叫做总体的一个样本。
例如:
1、我国每五年进行一次全国1%人口的抽样调查,其中被抽取的1%人口就是全国人口的一个样本。
2、说明在下列问题中,总体、个体、样本各是什么?
(1)为了了解一批灯泡的寿命,从中抽取10只进行试验.
(这批灯泡寿命的全体是总体,每个灯泡的寿命是个体,抽取的10个灯泡的寿命是总体的一个样本.)
(2)为了考察会师园一年中每天进园的人数,在其中的30天里对进会师园的人数进行统计.
(这一年中每天进会师园的人数的全体是总体,每天进会师园的人数是个体,所抽取的30天里每天进会师园的人数是总体的一个样本.)
(3)为了考察一个学校的学生参加课外体育活动的情况,调查了其中20名学生每天参加课外体育活动的时间。
(总体是:参加课外体育活动全体的时间。样本是:20名学生每天参加课外体育活动的时间。个体是:每位学生每天参加课外体育活动的时间。)
1.举例说明什么时候用普查的方式获得数据比较好,什时候用抽样调查的方式获得数据比较好。
归纳总结本节课所学习的内容
1、课本177页,数学理解1题。2、“你怎样对待你的父母”主题调查
父母的关心是无微不至的,但是现在大家回过头来想一想,我们是怎样对待自己的父母的呢?班干部组成一个调查小组,以“你怎样对待你的父母”为主题,设计几个问题,如:你知道你父母的生日吗?在父母生日的时候,送过父母小礼物吗?在家主动帮父母做家务吗?当父母批评你的时候,你持什么态度呢?等等.开展调查,写出调查报告,星期五周会上全班同学进行交流。
说课稿数学 说课稿ppt 篇八
各位评委老师:
大家下午好。今天,我说课的内容是鄂教版五年级第六单元第17 课,课题是《隔窗看雀》。本单元以“人与动物”为话题,安排了三篇课文。《隔窗看雀》在本单元起着承接作用,透过这扇窗户,听到雀儿的鸣唱,为我们的生活增添了情趣。生动地再现了人与自然的和谐之美,
我的说课分为四个部分,分别是:说教材,说教法学法,说教学步骤,说板书。
首先我们进入第一部分:
《隔窗看雀》这一课构思新颖,语言质朴,蕴意深刻。文章前5段,作者描写了麻雀的“跳跃”、“翘尾巴”“飞行”,喜爱之情溢于言表。妙的是作者笔锋一转,在第6自然段提炼出麻雀在平凡生活中的心灵写照:“忙碌而不羞愧,平庸而不自卑”,并进一步诠释它坚忍、乐观、有责任感的生活态度。最后,作者用精妙的语言描写了麻雀是“点缀在人类生活中的活标点”,敬重之情油然而生。
扬扬洒洒的文字让人浮想联翩,更令人感慨不已。但作者由“雀”到“人”、寄情于物的写法,特别是“忙碌而不羞愧,平庸而不自卑”的深刻内涵,学生领悟还较困难。作为教师,我们应该架起学生和文本之间的桥梁,让学生掌握文本的重点,理解文本的难点,落实语言文字的训练,以实现三维目标的整合推进。
根据以上对教材的分析本篇文章的教学,我预计2课时完成,第一课时理清文章脉络,扫清字词障碍。下面我就第二课时进行说课。通过研读,我制定了如下的教学目标和重、难点。
cai出示:
1、正确、流利、有感情地朗读课文。背诵自己喜欢的部分。
2、通过品味语言,想象画面,理解“忙碌而不羞愧,平庸而不自卑”的含义,培养学生的语感,帮助学生掌握边读边想象的学习方法,激发学生对平凡生活的热爱,形成健康的价值观。
教学重难点:理解“忙碌而不羞愧,平庸而不自卑”的可贵,引发学生对生活的初步思考。
我始终牢记:学生是课堂的主体,语文课堂就要有语文味,语言学习就是要唤醒学生的内心体验。而教法和学法往往是相互交融的。因此,我选择了如下的方法。
cai出示:
自主探究合作交流 抓词扣句体会情感 以读代讲引发共鸣
创设情境想象补白 拓展练习深化感悟
教学中,我紧紧抓住“忙碌而不羞愧,平庸而不自卑”这个中心句上牵下联,层层剥笋认识麻雀的形象,理解句子的含义,激发学生对平凡生活的热爱。
整个教学过程,我设计了四个环节。
cai:
复习旧知导入 雀儿巧妙再现
抓词扣句体会 雀儿深铭心中
图文并茂想象 雀儿点缀生活
隔窗放飞思想 雀儿唤醒生命
首先,进入教学过程第一个环节:复习旧知导入,雀儿巧妙再现
在复习旧知,导入新课的环节中,我让学生静静地观看麻雀活动的镜头,然后回忆上节课所读到的有关描写麻雀生活的语句,用朗读的形式再现出来。
作者看着窗外的雀儿门,此时有什么感受?
接着让学生自由浏览课文6-11自然段,找出文中最能集中表现作者感到麻雀“忙碌“、“平庸”的句子,并勾画出来。
紧接着,进入到教学过程第二个环节:抓词扣句体会,雀儿深铭心中
进入这个环节我提出第一个层面的问题:你从哪些词句感受到麻雀的“忙碌、平庸”?
默读课文,圈点批注,集体交流:首先感受麻雀的“忙碌”。学生说到哪就让他读哪;读到哪,老师就评价、反馈、指导到哪。
在此我对麻雀的“平庸”进行了重点指导。
cai:
“它不会翱翔,也不会盘旋,它不能像那些大的禽类那样顺着气流,直上白云苍穹之间,作大俯瞰或大航行。它从一棵树到另一棵树,从一个楼檐到另一个檐台,与人共存,生存与市井之间……”
让学生找出这段话中体现麻雀“平庸”的关键词(学生不难找出“不会”“也不会”“不能”这些关键词去体会“平庸”,教师及时进行评价。)
然后,让学生结合课文的内容,说说麻雀会些什么,又只能做些什么这样的句式来。
再通过朗读,麻雀与大禽类之间的差距形成鲜明对比,学生不由得从心底里感慨麻雀是多么“平庸”啊!
在此基础上,我继续紧扣中心句,提出第二个层面的问题,即核心问题:为什么作者认为它“不羞愧,不自卑”呢?
学生们很快发现了文中第6段中的一个重点句:
cai:
低飞,跳跃,啄食,梳理羽毛,发出永远幼稚的鸣叫,在季节的变化中坚忍或欢快,有责任感地孵蛋和育雏……活着。
此句理解分为四个层次:
1、通过自读,理解文本内容;
2、再读交流,找出重点词深化理解,体会到麻雀总是叫个不停、忙个不停,很坚强、快乐的活着;
cai出示:
低飞,跳跃,啄食,梳理羽毛,发出永远幼稚的鸣叫,在季节的变化中坚忍或欢快,有责任感地孵蛋和育雏……活着。
低飞,跳跃,啄食,梳理羽毛,发出鸣叫,在季节的变化中孵蛋和育雏……活着。
3、将句中的“永远幼稚的”“坚忍和欢快”、“有责任感”这些关键词隐去与原句进行对比读,让学生在读中自主感受到作者的情感倾向;
通过这两个例句的对比读,学生们自主感悟到:去掉这三处形容词,文章逊色很多,从中也感受不到周涛先生的情感倾向,也很难读出自己的感情。
4、拓展练习,内化提升。让学生通过四个不同句型的练习,达到理解、共鸣、升华的目的,更重要的是进行有效的练笔。
教学到这一步,我预设情境,师:“同学们,想象一下:在最难熬的冬天和夏天,或者当雀儿面对遭遇时,它是怎样地活着呢?你能用这样的句式说一说吗?(逐步放手让学生说)
同时cai出示:
冬天,寒风凛冽,大雪纷飞,雀儿依然坚忍地活着。
夏天,烈日炎炎,酷热难当,雀儿依然欢快地活着。
当雀儿遭到追赶、啄咬时,雀儿依然坚强地活着。
为了自己的孩子,雀儿必须乐观、有责任感地活着。
通过这种句型的练习引导学生联系生活,将抽象的文字具体化、形象化:让学生把填写完整后的句子读出个性化的情感体验。
过渡:当同学们把课文读到这里,我相信在大家的心里,这绝不仅仅是一只“忙碌平庸”的麻雀那么简单了。你能用“虽然……但是……”这个关联词,来表达你对雀儿更深的认识吗?
cai出示:
虽然雀儿______________,但是______________,依然______________地活着。
学生完成练习后老师小结:是呀!麻雀在忙碌的生活中,在面对各种困难时,它始终乐观、坚强、有责任感。难怪作者会产生深深地敬意,发出这样的赞美,一起读!——“忙碌而不羞愧,平庸而不自卑”!
以上环节我设计的意图是:任何语言训练都需要通过“听、读、说、写、思”才能真正内化为自己的语言,才能表达自己的内心体验。所以在这个环节中,我相机引入了几处练笔与拓展,引导学生由外而内,整体、全面、深刻地认识了麻雀的形象,使三维目标整体达成,体现了教学的有效性。让雀儿的形象跃然眼前,对它的“忙碌、平庸”有了一个完整、清晰的认识。
进入教学过程的第三个环节:图文并茂想象,雀儿点缀生活
课文进入到第9自然段,作者以审美的眼光重新看着窗外的雀儿,用精妙的比喻和奇特的想象描绘了四幅画面,让我们感受到生活中有了雀儿的点缀生命充满了活力,生活更加美好。
cai出示:
它是点缀在人类生活中的活标点:落在冬季枯枝上时,是逗号;落在某一个墙头上时,是句号;好几只一起落在电线上时,是省略号;一对儿追逐翻飞,累了落在上下枝时,就是分号。
此处突破,我采用读中想象的学习方式,体会文字的精妙之处。同时选择清新的纯音乐作为辅助理解的工具。通过读想学生很快就能发现:这段话运用了比喻、排比的的手法:把雀儿比作活标点,形象地写出了雀儿体形小巧、形态各异的特点;排比句流露出对雀儿喜爱欣赏之情。“朗读是学生学习语文最好的方法” (配乐读)此刻流淌出音乐,让学生朗读,舒缓优美的音乐,流畅挥洒的文字,纯净甜美的声音将这段文字演绎得淋漓尽致,这美丽的瞬间自然定格在师生的脑海里!”
这个环节我的设计意图是:赏析精彩语段,变“读话”为“作画”,对语言文字进行再创造,培养学生对语言的鉴赏力和创造力,品味语言,积累语言。
到此教学进入到最后一个环节:隔窗放飞思想,雀儿唤醒生命。
有了对文本的理解,对作者感情的领悟,学生也就有了自己的深刻思考,有了自身独特的感受。应该说我们的文本教学任务已经完成,但,语言文字是生活的再现,语文教学是引导学生通过文本学习达到对生活的感悟与升华。从而内化为自己的行为。
因此我做了如下设计:紧扣课题,引导学生回归整体;理解课题的内涵,进一步激发学生的情感;联系实际,从身边的人群中提升。
首先,我引导学生思考:“同学们,作者看的仅仅是雀吗?他还看到了什么呢?”(原来作者是透过雀来看人,看的是生活中像麻雀一样生活的人,虽然很忙碌平庸,但依然快乐地生活着。)
接着,我又进一步引导学生联系生活实际谈体会,“我们身边有这样的人吗?”
当学生谈到身边的普通人时,我展示了一组生活中平凡人工作的画面,让学生静静地看,静静地思考,此时无声胜有声。
总结升华:同学们,这就是“忙碌而不羞愧,平庸而不自卑”的平凡人,他们踏踏实实地工作,本本分分地生活。透过这一扇窗户,我们感受到了作者对弱小生命的敬重!让我们怀着这份对生命的敬重和对生活的热爱,再读一次吧!——忙碌而不羞愧,平庸而不自卑
最后向大家说说我的板书设计:
13 隔窗看雀
忙碌而不羞愧,平庸而不自卑
我们都知道板书是微型的教案,结合教学内容,我围绕着“忙碌而不羞愧,平庸而不自卑”展开教学活动。因此 本节课的板书设计本着简洁、清晰、直观的原则,抓住中心句帮助学生理解,突破本文的重点,从而使学生体会到作为一个平凡的人也能活得充实快乐。
尊敬的各位评委:以上是我就《隔窗看雀》一文的教学构想。对于教学而言仅仅是硬设计,在本课具体的教学实施过程中,我将时时关注课堂,关注学生,捕捉课堂生成,将其作为新的教学资源为我的课堂增姿添彩。总之,力争做到:每一堂课,上的永远比说的好!
谢谢各位评委!!!
说课稿ppt 篇九
汉语拼音是学习汉字,学说普通话的工具。对于学龄前的孩子来说学好拼音是很重要的。它将为入小学的汉字学习打下良好基础,但同时也是一门比较枯燥乏味的课,幼儿学完以后掌握的怎么样,发音是否准确,书写是否正确,孩子是否能熟练运用还是一个重要课题。针对这些问题,我根据《新课标》提出的“汉语拼音教学尽可能趣味性,宜以活动和游戏为主”,“积极倡导自主,合作,探究的学习方式”,遵循幼儿身心发展和学习规律,充分发挥师生双方在教学中的主动性和创造性,选择了开放而有活力的,更适合幼小过渡阶段的教学策略。
学前班的幼儿天真活泼,直观形象思维能力较强,容易被新颖的刺激物所吸引,但注意力保持时间有限。对于拼音教学来说,就要根据学龄前幼儿的心理活动特点和认知规律进行设计,变枯燥的拼音符号学习为愉快的学习体验之旅,激发幼儿对拼音的兴趣,并在学习拼音的过程中形成良好的说话和听讲习惯。因此,我对原有教材进行了整合简化,将以往一课所学的字母,基本音节整合在图画和儿歌中,使无意义的拼音内容成为有趣的故事,·孩子们生活中常见的事物,注重了情感态度,知识能力之间的联系。让幼儿知道所学习的知识从生活中而来,能轻易进入课堂所创设的情境,减轻学习压力。
根据课程对拼音教学的要求,教材特点,结合幼儿的实际情况,本次说课将围绕该三部分内容的教学展开阐述。
(一)知识目标:学会前鼻韵母un,读准音,认清形。
(二)技能目标:能够正确书写un,读准un的四声。
(三)情感目标:让幼儿在学习拼音的过程中收获到快乐,体验到成功的喜悦。
重点:un的发音、un的四声和un的书写。
难点:un的发音和un的四声读法,为第二课时的拼读教学做准备。
教具准备:拼音卡片、图片。
围绕以上的教学目标、教学重难点以及学生的学情,我将从以下几个方面设计本课的教学过程:
1.创设情境,复习导入。
2.借助图画“两只蚊子”的故事引出前鼻韵母un。
3.利用图画蚊子翅膀的形态利于记忆的特点,识记前鼻韵母。
4.通过教师示范、学生模仿的形式认读前鼻韵母un。
5.以游戏"开火车"的形式固前鼻韵母un的认读。
6.利用“un的四声自编儿歌”巩固前鼻韵母un的四声练习。
7.通过情境叙说“请un回家休息”来帮助幼儿记清"un"的书写格式。
鉴于学龄前幼儿活泼好动,易于接受直观、生动事物的特点。在教学中,我努力创设丰富多彩的教学情境,将抽象、枯燥的汉语拼音同有趣的游戏、儿歌、故事、比赛等结合起来,把幼儿带入一个“有声有色”的拼音乐园中去学习。如在复习导入这一环节中,我设计了介绍老朋友见面认识就打招呼的情节调动幼儿的学习兴趣,充分激发幼儿的学习欲望。老朋友是已学过的前鼻韵母an`en`in及其四声,介绍的过程在于巩固已学的3个前鼻韵母的发音为后面的拼读作准备;利用两只蚊子的故事并观察图画蚊子翅膀的形态(一只蚊子翅膀朝上,一只朝下)来让幼儿识记前鼻韵母un;在课堂上让幼儿开火车接读拼音;用“我来问你来答”的形式让幼儿根据自己以往的拼读经验读出un的四声并自编四声儿歌等,让幼儿在学中玩,玩中学,寓教于乐,使拼音学习变得生动有趣,充满吸引力。
幼儿是课堂教学的主体,是学习活动的主体。所以在教学中,我们应尊重幼儿,让幼儿做学习的主人,充分发挥他们的主动性和创造性。在课堂上我们力求做到:要扶的扶,能放的放。采用“先扶后放”逐步放手的方法,鼓励幼儿运用已有知识去自主探究新知识。如,在教读前鼻韵母的时候,我先领着幼儿读,当幼儿基本掌握发音方法后,我通过“我当小老师”的形式鼓励幼儿来领读;分组比赛读,男生女生谁更棒等多种形式,不仅让幼儿的潜能得到发挥,让他们的自信得到飞扬,而且他们能够体会到成功的喜悦,更加激起了他们主动学习的愿望。
儿童学习汉语拼音,是一个从言语实践中来,又回到言语实践中去的过程。在教学中,我努力地为幼儿创设一种语言环境,让幼儿在具体的语言情景中学习音节,如,当学完了前鼻韵母un的四声后,让幼儿用戴声调的un组词、造句;还通过自编儿歌激发幼儿的学习欲望,并在儿歌中读准其四声的发音。如:一声un温度温度un,un,un;二声un蚊子蚊子un,un,un;三声un站稳站稳un,un,un;四声un问题问题un,un,un......因为“温度”“蚊子”“站稳”“问题”是幼儿在日常生活中用过和听过的。通过自编儿歌唤起他们的记忆,从生活中找准读音有助后面的新知识学习,加强学习与生活的联系。这样他们才会学得更主动、更快乐、更有信心。
说课稿ppt 篇十
我说课的内容是高中数学人教b版选修2-2中第一章第三节的内容——导数的几何意义第一课时。就本课节教学实践,我将从以下八方面介绍我对本节课的教学设想:说考纲;说教材;说学情;说教法;说学法;说教学过程;说板书设计;说自评反思。
由于导数是微积分的核心概念之一,它为研究函数性质提供了有效的工具。近年高考对导数加大了考查力度,不仅体现在解题工具上,更着力于思维取向的考查,它像一条腾跃的龙和开屏的凤,潜移默化地改变着我们思考问题的习惯。数学思想的引领,辩证思想的渗透,帮助着我们确立科学的思维取向。正因如此,导数的几何意义是整个导数及其应用部分中,新课标考纲唯一一个冠以“理解”的要求标准,也是这部分认知领域的最高标准,可见其地位和意义。
教材从数形结合的思想即割线入手,以形象直观的“逼近”方法定义了切线,获得导数的几何意义,学生通过观察、思考、发现、归纳、运用形成完整概念,辩证思想得以渗透,有利于学生对知识的理解和掌握。本节知识内容相当少,但在本节的教学实践中要突出其承前(进一步理解导数的定义,探讨函数值变化快慢)启后(作为研究函数的单调性、求解函数的极值和最值等性质最有效的工具)的关键纽带作用。
通过前两节对函数平均变化率和导数定义的学习,学生对有关导数的问题已经有了初步的认识,但是由于导数定义的抽象性,学生认知起来仍具有一定的困难。本节要通过动态的课件演示,将函数的平均变化率、导数(瞬时变化率)定义生动地展现,同时挖掘切线的斜率(斜率的绝对值的大小与陡峭程度)与函数图像的走势(导数的绝对值的大小与函数值变化快慢)的关联,成为后面研究函数的单调性、求解函数的极值和最值,探讨函数值变化快慢等性质最有效的工具。激发学生的学习兴趣,提升独立探索、解决问题的能力、数形结合的能力及对知识灵活运用的能力。
根据上述考纲、教材、认知的要求,立足学生的认知水平,设定教学目标和重点、难点,从识记、理解、掌握、应用四个层次上给出教学目标,教学重点制定在非智力因素的培养上,教学难点制定在思维能力方面。
教学目标:理解导数的几何意义,会求曲线的切线方程。
教学重点:掌握在某点和过某点的切线问题的求解方法。
教学难点:让学生在观察、思考、发现中学习,归纳总结、启发 学生研究性问题。
备课准备充分,为促进学生思维方式方法形成提供动力源泉。
多媒体辅助教学,通过几何画板的动态演示,能充分发挥其快捷、生动、形象的特点,无需提出问题让学生通过小组议论形式,发现规律,更有利于难点的突破。让学生亲身经历“观察、思考、发现、归纳总结、启发学生研究性”的过程,教师针对各组的结论引导学生用逼近的思维方法,理解导数的几何意义,同时尽量为后面的单调性、极最值、函数值变化快慢等做好总结性铺垫。教给学生思考问题的方法和依据,使学生真正成为教学主体。
通过小组议论形式让学生参与教学活动,促进学生间合作学习与交流,共同探讨问题,探索解题方法,产生互动效果,提高学生的合作意识,共同来完成教学目标。
(一)回顾与引入
回顾函数平均变化率定义及其几何意义;导数的定义及其导数的物理意义,铺设类比迁移情景。提出导数的几何意义是什幺?
(二)导数几何意义的探求过程
1.切线的定义
利用圆的切线与割线的动态联系适时地给出一般曲线的切线定义(避免从公共点的个数来定义)。
2.动态观察割线与切线的关联
通过演示割线的动态变化趋势,为学生观察、思考提供平台,引导学生共同分析,直观获得切线定义。通过逼近方法,将割线趋于确定位置的直线定义为切线,使学生体会这种定义适用于各种曲线,反映了切线的直观本质,从而归纳出导数的几何意义。这里教师要引导学生归纳总结曲线在某点处切线与曲线可以有不止1个公共点。直线与曲线
只有一个公共点时,不一定是曲线的切线。
3.通过例题体现应用,归纳求解步骤。
七、说板书设计
课题:
回顾:例1.求在指定点处的切线
练习:
几何意义:
例2.求过指定点处的切线
切线的理解:
例3.探索已知切线的斜率求切线方程问题
小结:
作业:
在本节课教学过程中对学生的观察能力、分析思考能力、理解归纳能力及数形结合能力方面进行了训练和考验。注重合作交流,归纳总结,及时对各组学生所取得的成果进行肯定,从而使学生获得成就感。既注重“双基”,又兼顾提高,为学生指明课后继续研究的方向,同时也为以后的学习陈设铺垫,激发学生探索新知识的兴趣。
说课稿数学 说课稿ppt 第十一篇
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