2023年一年级数学说课稿 一年级数学说课稿说学生(14篇)
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一年级数学说课稿 一年级数学说课稿说学生篇一
《数学课程标准》明确指出:“学生是数学学习的主人,教师是数学学习的组织者、引导者和合作者。”基于对《数学课程标准》的研读,结合本节课学生的年龄特点及认知水平,我对本节课的教学理念有如下认识:
1、创造有利于学生理解的教学情境,让学生在现实情境中体验和理解数学,经历数学化的过程。
2、为学生提供充分数学活动的机会,变“学数学”为“做数学”。
3、让学生经历知识的形成过程,感受推理、转化等数学思想方法。
4、多方位、多元化评价学生。
在教学过程中坚持“以学生为主体,以教师为主导”的原则,依据学生的心理发展规律,采用学生参与程度高的教学方法即,教师的“教”立足于学生的“学”。
1、教学内容 人民教育出版社九年义务教育课程标准《数学》教科书一年级下册第61页主题图及第62页例1,完成“做一做”及第63页练习十四第2题、第3题、第5题。
2、教材分析 本节课内容是在学生基本掌握了100以内数的读法、写法和数的组成,以及整十加一位数和相应的减法的基础上进行编排的。整十数加、减整十数的口算方法与10以内加、减法基本相同,只是计数单位不同,是以十为计数单位。教材首先呈现给学生的是一幅发新书的情境图,学生尝试提出数学问题。小精灵的提示语显示出让学生自主探索口算方法,相互交流,体现了算法多样化理念。这样编排,有助于学生加深对相同单位的数可以直接相加、减的认识,为后面学习任意两个数相加、减打基础。整十数加、减整十数属于本单元教学中的重点内容之一,着重解决把相同数位的数相加。遵循了由具体到抽象的原则,有利于学生思维能力的培养,为进一步提高计算速度、培养计算能力,解决实际问题打基础。
3、教学目标 根据《课程标准》的要求,结合教材的特点及学生的实际情况,我制定了以下三个目标:
(1)、经历在实际情景中提出问题并解决问题的过程,掌握整十数加、减整十数口算的方法,并能正确计算。
(2)、让学生学会把整十数加减整十数归结为10以内加减法,树立转化意识。
(3)、在观察、比较、合作交流中逐步培养学生主动探索和独立思考的意识,感受算法的多样性,培养思维的灵活性。
(4)、体验解决问题的成功喜悦,树立学好数学的信心。
4、教学重难点 教学重点:整十数加减整十数的口算方法。教学难点:整十数加减整十数的口算的算理、算法。
本着树立以“以学生发展为本”、“以学定教”、“教为学服务”的思想,在教学活动中我采用引导自学、合作交流相结合的方法,让学生在理解算理的基础上熟练运用算法形成计算技能,有效地提高了教学效率。在知识的应用阶段,我还采用自主探索来解决问题,形成技能。
因为计算常给人的感觉是枯燥乏味,所以在教学中我借助发新书这一生动情境,把整十数加减整十数的口算置入有事物情境、有情节的探索中,使口算含有丰富、生动的具体内容。
在探索整十数加减整十数的口算方法时,通过讨论、交流、动手操作等活动,让学生自主探索,显示不同算法,体现了《课标》中“鼓励学生独立思考,提倡计算方法的多样化”的理念。
练习环节请学生帮忙摆筷子,参与开火车游戏,帮助家人买衣服,淡化“练”的痕迹,巩固和实践相关的知识技能,发展数学思考能力。
这一节课的教学对象是一年级的学生。他们年龄小、好动、爱玩、好奇心强,在四十分钟的教学中容易疲劳,注意力容易分散。根据这一特点,为了抓住他们的兴趣,激发他们的好奇心,我借助发新书的情境,让学生在身临其境的环境中愉快地学习。《课程标准》指出:“动手实践、自主探索、合作交流是学生学习数学的重要方式”。在教学过程中,通过让学生看一看(看图)、想一想(想问题和算法)、数一数(数书)、说一说(说算理与算法)、摆一摆(摆小棒)等多种形式,让学生积极动眼、动耳、动脑、动口,引导学生通过自己的学习体验来学习新知,积极开展本节课的数学活动。充分体现了学生为主体教师为主导的原则。体现了《课程标准》要求“学生是学习数学的主人,教师是数学学习的组织者、引导者和合作者”的功能。
一年级数学说课稿 一年级数学说课稿说学生篇二
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一年级数学说课稿 一年级数学说课稿说学生篇三
1、使学生能够在具体情境中用“前后”描述物体的相对位置与顺序。理解前后的意义,体会前后顺序的相对性。初步培养学生的空间方位观念;
2、初步培养学生按一定顺序进行观察的习惯和表达的条理性;
3、感受数学与生活的联系,让学生在活动中获得积极的情感体验。
作业的设计有基础题,有提高题。适应不同学生的发展需要。
基础题:
“新龟兔赛跑”。运用前后的语言描述乌龟和小兔在不同时段的位置。
提高题:
找一找生活中,哪里有前后。(对学生的观察和表达能力的要求有所提高)
我们的小专题题目是:《小学数学“解决问题”有效教学策略》。在“前后”这一课的教学中,学生需要解决的主要问题是观察情境图,并用数学的语言有序的、完整的表述。
让学生解决“小动物在哪里,排在第几位,他的前面是谁,后面是谁”。这需要学生数学的思考。让学生明白问题是什么,先自己思考,然后在同伴交流,和对方说说自己的想法,并补充和修改自己的。
在这节课中,我有意识的培养他们独立解决问题的能力,并且提供给他们交流合作的机会。实际看来,学生的表现是比较好的。
一年级数学说课稿 一年级数学说课稿说学生篇四
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一年级数学说课稿 一年级数学说课稿说学生篇五
《买铅笔》是北师大版小学数学第一册第七单元(加减二)的第一课时。本课教学是在学生学习了20以内的进位加,以及10以内加减法,初步感知了加减法之间的关系的基础上进行的。是今后学生学习100以内数的加减法的基础。
教材提供的主题图是小白兔到袋鼠的文具商店买铅笔情景。主题图中已经出示了数学问题:“15支铅笔,卖出9支,还剩多少支?”我认为本课的主题图给出的数学问题太直接,学生没有思维的空间。因此在教学时我把主题图进行了改进。把主题图中袋鼠提出的数学问题改为“有15支铅笔”这一条件,这样,让学生自己去观察主题图,从图中找出有用的数学信息,再根据相应的信息提出问题,从而培养学生的观察能力、获取信息的能力和提出问题的能力。
从教材提供的例题和练习分析,本课应是学习十几减9、8的退位减法。但我认为20以内的退位减法的运算方法应该是相通。只要掌握了十几减9、8的退位减法的运算方法,学生就会自然地迁移到所有的20以内的退位减法上来。因此,我对本节课的教学内容也作了调整,即20以内退位减法的运算。
人教版小学数学一年级上册说课稿买铅笔:教学目标有三大来源:一是来自学生的学习需求。即要了解学生的一般特征,了解学习者的学习风格;二是来自学生的现实生活。学生熟悉的生活情景中蕴涵着丰富的科学原理,怎样引导学生发现并理解生活情景中蕴涵的科学原理,并确定体验目标的要素构成与逻辑关联,怎样引导学生将学习成果运用于生活实际,并实现体验性目标与结果性目标的统一,这是教师在制定目标是要重点考虑的。三是来自教材的学习素材。
从确定教学目标角度而言,教材的价值及其研究重点在于:
1、提供学习内容的知识结构和逻辑联系;
2、确定教材所反映的知识结构和逻辑联系同学生认识特点的结合点;
3、确定教材所反映的知识结构和逻辑联系同学生现实生活情景的结合点。“以学生的全域发展”作为标准,教学目标可以分为知识技能,问题思考,问题解决,情感态度和价值观四个方面。
依据以上的教材分析和我对目标制定的理解结合学生的年龄特征,本节课的教学目标及重难点我是这样确立的:
教学目标:
1、以“十几减9”为切入点,在合作交流中学会20以内退位减法的运算方法。
2、掌握20以内退位减法,并运用它解决生活中的实际问题
3、通过鼓励算法的.多样化,初步培养学生思维的灵活性和独立性。
4、在小组合作学习中培养学生积极参与数学学习活动以及善于交流,敢于提出自己的想法的学习态度。
教学重点:
学会20以内退位减法的运算方法。
教学难点:
探讨“十几减9”的退位减法的计算方法。
(一)关于教法:
本节课属于计算教学。传统的计算教学往往只注重算理、算法(单一)及技能训练,比较枯燥。依据新的数学课程标准,本节课在教法上力求体现以下几点:
1、创设生动具体的教学情境,使学生在愉悦的情景中学习数学知识。充分运用教材提供的教学资源,利用多媒体教学课件为学生展现一幅幅带有活动情节的画面,引发学生的兴趣,调动学生的情感投入,激活学生原有知识和经验,以此为基础展开想象和思考,自觉地构建知识,学会计算方法。
2、鼓励学生独立思考、自主探索和合作交流。
动手实践、自主探索、合作交流是学生学习数学的重要方式,转变教师角色,给学生较大的空间,开展探究性学习。让他们在具体的操作活动中进行独立思考,并与同伴交流,亲身经历问题提出、问题解决的过程,体验学习成功的乐趣。
3、尊重学生的个体差异,满足多样化的学习需求。
由于学生生活背景和思考角度的不同,所使用的计算方法必然是多样的,教学中应尊重学生的想法,鼓励他们用不同的方法解决问题,提倡算法多样化,使每个学生找到适合自己的方法。这里要说明的一点是:多种方法中肯定有比较简便的方法,但是并不是每个同学都能很快接受快捷方便的方法,因此教师只能够引导学生进行比较,同时给他们留出消化吸收的空间,千万不要强加给学生,应让他们在逐步的体验中自然而然的接受,从而选取更优的方法。
(二)关于学法:
依据新的课程标准,必须转变学生的学习方式,本节课在学生学习方法上力求体现:
1、在具体情景中经历发现问题,提出问题、理解问题和初步解决问题的过程,体验探索的成功、学习的快乐。
2、在动手操作、独立思考、进行个性化学习的基础上,开展小组合作交流活动,通过比较、批判“自我反思”,完善自己的想法,构建学习方法。
3、通过灵活、有趣的练习,巩固计算方法,提高计算技能。
4、联系生活实际解决身边问题,体验数学的应用,促进学生的发展。
(一)观察主题图,提出数学问题。
培养学生的观察能力、获取数学信息的能力和提出问题的能力是当前小学数学课堂教学的重要目标之一。而利用好教材中的主题图正是培养学生上述能力的良好时机。对于一年级的小朋友来说只有经过长期的训练才能逐步形成能力。因此,这一环节我是这样设计的:
1、出示教材第78页修改后的主题图。(如何修改我在教材分析中已经说过。)
2、请小朋友仔细观察主题图,从中获取有用的数学信息。
3、根据数学信息提出数学问题。
我想,只有让学生经过独立观察、独立思考来获取有用的数学信息,从而提出数学问题才能充分体现学生的主体作用,学生的个性化理解才能充分暴露,主题图的作用才能得到充分的发挥,这是一举多得的好事。
(二)根据问题,列出式子。
学生经过10以内的加减法的学习以及20以内进位加法的学习和长时间的培养,已经具备了根据数学问题列出式子的能力。因此学生根据“15支铅笔,卖出9支,还剩多少支?”这个问题,能很快的列出式子。
(三)讨论15—9的算法。
本环节的教学,我安排了4个小环节:
1、独立思考15-9的算法。
2、小组交流15-9的算法,教师巡回指导。
3、全班交流,教师整理板书。
4、尝试练习(用自己喜欢的方法计算)。
为什么要安排4个小环节呢?我认为探究性学习必须要有独立思考的时间。由于学生的生活背景和思考角度不同,对15-9的理解也就不同,只有让学生经过独立思考,去整理自己的思路才能在后一环节小组交流中充分发表自己的见解。再则,由于一年级的学生年龄小,语言组织能力差,只有让学生经过独立思考,好好的想一想应该怎样表达自己的想法,才能在后一环节小组交流中有东西好交流。
《数学课程标准》提出了:“提倡算法多样化”和“鼓励算法多样化”的要求。不同的算法展示了学生不同的认知方式。教学中,学生探讨算法环节的设计,目的是使学生经历一个独立思考、合作交流与再创造的过程。这种探究式思考的价值远远大于遵循某种方法的思考价值。教学中,学生的计算方法各异,教师不急于评价某种方法的优劣,而是让学生介绍清楚各种方法的特点,引导学生“取其精华”,使算法多样化的过程成为一个探索与创新的过程。在教学中,安排小组交流环节,使学生在思维的碰撞中擦出智慧的火花。
提倡算法多样化,并非要求学生一定要掌握多种计算方法;也并不是要求学生要生硬地去套出多种算法。“算法多样化”应是学生在探索算法的过程中自然形成的。新课标中所提及的算法多样化和优化,是指集体的多样化,个体的优化。也就是说要求全体学生尽可能地多想出几种不同的算法,而不是要让每个学生都能想到或掌握这些算法。优化是学生个体的行为,教师不能把全班同学所有的算法都优化成一个算法,这有违新课标的精神。因此,在全班交流环节,教师有意识的把学生汇报的算法板书出来,把算理大致相同的算法整理在一起,让学生在听与说、议与思的过程中学会算法,为以后的个体优化奠定基础。
小组合作对一年级的小朋友来说难度比较大,学生都是以自我为中心,不能很好地倾听他人的意见,如何让小组中的每一个成员都积极地参与又是一大难题。我认为,小组合作的重点是要每一个学生都动起来。因此,在这一环节的教学中,我对学生的合作学习提出了一些具体明确的学习任务。(见教案)
(四)巩固算法
这环节,我安排了3个层面的练习。
第一层是基本练习。通过本题的练习,使学生巩固十几减9的算理,并迁移到十几减8、十几减7等20以内退位减法,使学生明确20以内退位减法的算理是相通。
第二层是解决问题,延伸算法。计算教学如果只重
视计算技能的学习,往往比较枯燥。只有把计算教学至于问题解决中去,使学生感受到计算是有用的,是能帮助我们解决实际问题的,学生会更感兴趣。同时,利用两个生活中的实际问题也使学生感捂数学就在我们身边。
第三层是摘苹果游戏。
游戏是底年级儿童最喜欢的课堂学习形式。让学生在游戏中、玩乐中轻轻松松学知识,这不正是我们的追求。
(五)回顾反思,总结评价。
这节数学课你学地开心吗?你有什么收获?你想提醒同伴们注意什么?
对学生在知识掌握、技能提高、情感态度价值观的培养与发展方面的情况作全面的总结;让学生结合自己在课堂上的表现,进行自评、互评,发扬优点,弥补不足,不断进步。
以上是我对本课教学的一点认识,请各位同仁、专家批评指正。
一年级数学说课稿 一年级数学说课稿说学生篇六
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一年级数学说课稿 一年级数学说课稿说学生篇七
1、教学内容:义务教育课程标准实验教科书,一年级下册第二单元“20以内的退位减法”,第一课时十几减9。
2、教材简析:20以内退位减法对进一步学习多位数计算和其他数学知识非常重要,必须在理解算理的基础上学会计算方法。作为第一课时尤为重要,通过系统学习十几减9的计算方法,为十几减几的学习构建基本的学习思路。
教学目标:
⑴经历与他人交流各自算法的过程,理解十几减9的算理,构建20以内退位减法的基本思路。
⑵正确计算十几减9的题目。
⑶感受20以内退位减法与生活的密切联系,体验数学的应用价值。
⑷培养学生积极参与数学活动的兴趣,体验探索与创造的快乐。
教学重点:
探究算法,正确计算。
教学难点:
理解算理,在自我反思的基础上建立自己的计算方法。
本节课属于计算教学。传统的计算教学往往只注重算理、算法(单一)及技能训练,比较枯燥。依据新的数学课程标准,本节课在教法上力求体现以下几点,
1、创设生动具体的教学情境,使学生在愉悦的情景中学习数学知识。充分运用教材提供的教学资源,利用多媒体教学课件为学生展现一幅幅带有活动情节的画面,引发学生的兴趣,调动学生的情感投入,激活学生原有知识和经验,以此为基础展开想象和思考,自觉地构建知识,学会计算方法。
2、鼓励学生独立思考、自主探索和合作交流。
动手实践、自主探索、合作交流是学生学习数学的重要方式,转变教师角色,给学生较大的空间,开展探究性学习。让他们在具体的操作活动中进行独立思考,并与同伴交流,亲身经历问题提出、问题解决的过程,体验学习成功的乐趣。
3、尊重学生的个体差异,满足多样化的学习需求。
由于学生生活背景和思考角度的不同,所使用的计算方法必然是多样的,教学中应尊重学生的想法,鼓励他们用不同的方法解决问题,提倡算法多样化,使每个学生找到适合自己的方法。
一年级数学说课稿 一年级数学说课稿说学生篇八
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一年级数学说课稿 一年级数学说课稿说学生篇九
《跳绳》是北师大版一年级数学第三单元的一节新授课,本课是在7的加减法的基础上进行8的加减法教学的。学生基本掌握了简单的说和算。
在本节课之前,学生已经认识了0-10并掌握了7以内的加减法,已具备了解决一些简单实际问题的能力。而且这个班的学生大部分上过学前班,数的组成也基本上知道;大部分的学生会看图说算式。所以这节课的重点是培养学生提出相关的加减法问题的能力,组织学生交流加减法算式,体会加减法之间的关系。
1、在具体的情境中,探索并掌握“8”的加减法的计算方法。
2、让学生能根据实际情境列出算式,并能说出算式的含义,培养学生的数感。
3、指导学生有条理地思考和语言表达能力。
4.初步养成仔细观察、主动思考、认真倾听、大胆交流的良好学习习惯。
说教学重点、难点
重点:能正确计算“8”的加减法,掌握计算方法。
难点:能用“8”的加减法解决问题。
本节课我采取情景演示法,自主探究法,引导学生结合情景图,鼓励学生仔细观察、主动思考,然后提出问题、解决问题、说出算法,掌握8
的加减法的计算方法并体会数学与生活的联系。
(一)复习口算。
(二)创设情景引入。
(三)学习新知。
课件出示课本第38页主题图
1、仔细观察图,从图中你发现了那些数学信息?
2、提出问题并解决
(1)一共有几个小朋友?你能列算式解决吗?
(2)你能说一说算式中各数字的含义吗?
(3)你是怎么计算出来的?能给大家讲讲吗?
(4)根据刚才找到的数学信息,你还能列出不同的加法算式吗?你能说说这个算式表示什么吗?
(5)你能提出一个用减法解决的问题吗?
3、师写算式学生猜算式表示的意义。
4、“8”的组成。
学生动手操作将8个桃子分给两只猴子。
5、说一说。
引导学生观察情境图,结合给出的算式3+5=□进行交流。
练习
1、课本练一练1、2题。
2、手指游戏:同桌两人进行,要求两人的手指合起来是8个。
(四)小结
这节课你有什么收获?你的表现怎么样?
(五)作业布置
一年级数学说课稿 一年级数学说课稿说学生篇十
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一年级数学说课稿 一年级数学说课稿说学生篇十一
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一年级数学说课稿 一年级数学说课稿说学生篇十二
教学内容:上海市九年制义务教育课本试验本第24-25页:数龙—百的数列
教材分析: 本册教材的目标是让学生在丰富多彩的空间中做数学、学数学、喜爱数学.让孩子们通过用100以内的数和基本图形来描述、探索实际生活中积累的经验片断,从实际生活中引入概念与方法,引导学生将生活中的问题变成数学问题并解决之,逐步形成“数学化” 的能力。
在学习本课之前,学生已经学习过20的数列,学生对数列已经有了初步的概念,并且初步理解并掌握了找20以内相邻数的方法.这些都为本课题内容的学习作了充分的知识铺垫和思路孕伏。教材编入这一部分内容的目的一方面是为了巩固找一个数的相邻数的方法,另一方面是使学生在掌握找相邻数的基础上,会找与一个数相邻的整十数,从而进行推算练习,发展学生的分析推理等能力.为进一步学习百以内的加减法打好坚实的基础.
根据教材内容和学生实际,本节课的重点: 通过+1,-1得到邻数,结合数射线进行凑整.
难点: 回到整十数和进到整十数。
结合本课的教学内容及一年级学生的认知特点,本节课的教学目标是:
1、认识百的数列。
2、能找出相邻数,并知道邻数的由来。(+1,-1)
3、结合数射线进行凑整、推算的练习。
4、培养学生推算、归纳的能力。
说教法:
为了突出教学重点,突破教学难点,力求体现合作交流,培养创新意识”这一教学思想,在教学中主要采用多媒本演示,组织讨论探索,引导合作发现等多种教学方法,让学生积极主动的参与到学习的全过程来并做到“有所争议、有所发现、有所创新”,构建活动化的全过程,让学生在丰富多彩的空间中做数学、学数学、喜爱数学.同时亲身体验成功和愉悦。
“教法为学法导航,学法是教法的缩影”。鉴于这样的认识,本节课在学习过程中,主要指导学生掌握以下的学习方法:
1、观察的方法,通过观察数龙上的各个数,找一个数的的相邻数,从而得出一个数的相邻数可以用+1和-1的方法得到.
2、推理的方法:从小袋鼠怎么样跳回到40与怎么样进到50,使学生从个别到一般,再从一般到普遍,总结出一个数回到上一个整十数与进到一个整数规律.,从而进行推算练习.
3、尝试法,教师先让学生自己找出与一个数相邻的整十数,然后再通过小袋鼠与小青蛙演示,来验证自己的结果,最后总结出回到上一个整十数与进到下一个整十数的方法.
一年级数学说课稿 一年级数学说课稿说学生篇十三
1、教学内容
《左右》是义务教育课程标准实验教科书数学一年级上册第五单元“位置与顺序”第三课时的内容。
2、教学内容的地位与作用
《左右》是前后上下的延续性学习。但认识左右比认识前后上下要困难一些。“左右”的含义及其相对性要具有更强的空间观念。通过学习,可以发展学生的空间观念,为以后认识立体图形建立空间立体感打好基础,提高解决实际问题的能力,使学生初步感受数学与生活的联系。
3、教学目标
(1)认识“左右”的位置关系,体会其相对性。
(2)在认识“左右”的过程中,培养初步的判断能力,能够运用“左右”描述物体的位置,并解决简单的实际问题。
(3)通过生动有趣的数学活动,使学生体会到学习数学的乐趣,增强对数学学习的兴趣。
4、教学重点:认识“左右”的位置关系
5、教学难点:体会“左右”的相对性
本节课强调学生主动参与活动和学习,重视让学生亲身体验,因此,我利用学生已有的生活经验及充分挖掘现场课程资源来启发学生进行学习,并采用各种有趣的小活动充分调动了学生的积极性,让学生在一个广阔、自主的空间中充分发挥学习的主动性,在观察与操作中认识和体验左右。
1、首先,创设一个和谐的学习情境,与学生交流谈话,让学生认识到自己有的两只手,一只是左手,另一只是右手,初步感知了左与右,并且激发了学生的好奇心和求知的欲望。
2、在学生初步感知“左右”后,以学生原有的经验出发,开展各种学习活动。教学中,我引导学生“说一说”左右手能做哪些事;“找一找”身上像左右手这样的好朋友;“做一做”小游戏,听口令做动作;“摆一摆”学具等。让学生在这些简单而有趣的活动中辨别左右,加深对左边和右边的认识。这样的教学方法灵活多变,学生既感到亲切而又不觉得枯燥,乐与参与学习。
3、引导学生将所学的知识与身边的实际生活相联系,“左右”在我们现实生活中处处可见,因此,除了认识和体验“左右”外,还要引导学生懂得解决实际问题。在解决问题的过程中,进一步加深学生对“左右”的认识,并且体验到数学学习与生活的密切联系。
低年级儿童好奇、好动,知识的学习和巩固应考虑儿童的年龄特征,因此,学生的学习应以活动为主,从学生的兴趣入手。基于学生在生活中已经对“左右”积累了一定的感性经验,但不一定准确判断的情况下,我给学生充分的时间和空间,让学生通过说、找、做、摆、看、练的活动,逐渐加深对“左右”的位置关系的认识。
1、说。是从生活经验入手,说左右手分别能做哪些事,这是对左右的初步认识。
2、找。是找像左右手这样的好朋友,这是对左右的进一步了解。
3、做。这是听口令做动手的小游戏。除了能调动学生的学习积极性,还能加深学生区别左与右。
4、摆。通过摆学具,使学生把对左右的认识变成得心应手的知识。
5、看。这是让学生观察由于他们的转动,右边事物的不同,初步体验左右的相对性。
6、练。达到巩固认识“左右”的位置关系,培养学生会运用所学知识解决生活中的实际问题的能力,体验数学与生活的密切联系。
(一)创设情境,激趣导入
1、谈话:同学们,淘气和笑笑他们平时可喜欢玩游戏了,你们喜欢吗?喜欢的请举手。你知道你举的是哪一只手吗?(右手)那么另一只手就是(左手)。
2、今天我们一起来认识一对新朋友:左右(板书)
(二)操作活动,认识左右
1、亲身体验,初步感知左右
(1)右手除了用来举手发言,还可以做什么?(拿筷子吃饭、拿笔写字……)左手呢?(吃饭时用左手拿碗……)
(2)左右手是一对好朋友,能帮我们做很多的事情,找一找自己身上还有这样的好朋友吗?(左右眼、左右耳、左右脚……)
2、小小游戏,进一步认识左右
(1)动一动:张开你的左手摇一摇,张开你的右手摇一摇;伸出你的左手向左转一圈,伸出你的右手向右转一圈。
(2)听口令做动作:左手摸摸左耳,右手摸摸右耳,跺跺你的左脚,跺跺你的右脚,左手拍拍右肩,右手拍拍左肩……
3、摆摆学具,辨别左右
(1)动手摆:铅笔在最左边;小刀在最右边;文具盒在中间;橡皮在文具盒的左边,铅笔的右边;尺子在小刀的左边,文具盒的右边。
(2)说一说:从左数,橡皮是第几个?从右数,橡皮是第几个?尺子的左边有什么?右边呢?
(3)打乱学具,你能提出什么问题,小组内议一议,说一说。
(三)引导观察,体会“左右”的相对性
(1)同桌同学面对面站着,观察左手和右手,你发现了什么?
(2)转动方向,观察左边和右边的事物,你发现了什么?
(3)小结:方向改变了,左边右边也改变了。
(四)联系实际,解决问题
(1)解决课本60页“找一找”。
出示挂图:
师:这位小朋友遇到了一个难题,你们能帮助他解决吗?这位小朋友想到小明家玩,可他只记得上楼左拐是小明家,小明住在几号房呢?
(2)解决“练一练”第3题。
a、师:停车场的管理员听说你们学会了新知识,想请大家帮忙解决一个问题,看看是什么吧。
b、出示挂图:从右边数大客车是第5辆,一共有()辆车。
c、交流说说是怎样想的。
(3)解决“练一练”第5题。
a、出示挂图:想一想,他们都是靠右边走的吗?
b、小组讨论、交流
c、到楼梯去走一走,亲身体验一下
d、小结:我们不仅仅上下楼梯时要靠右边走,在马路上行走时也要像这些小朋友一样靠右边走。遵守交通规则,注意安全。
(五)总结
这节课学习了什么?你有什么收获?
(六)拓展延伸
同学们回家后,看一看你们家左右两边分别是谁的家。
一年级数学说课稿 一年级数学说课稿说学生篇十四
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