最新认识钟表教学设计意图 认识钟表教学设计一年级(二十八篇)
在日常的学习、工作、生活中,肯定对各类范文都很熟悉吧。范文怎么写才能发挥它最大的作用呢?下面是小编为大家收集的优秀范文,供大家参考借鉴,希望可以帮助到有需要的朋友。
认识钟表教学设计意图 认识钟表教学设计一年级篇一
p76例1例2、例3及课堂活动。
1、认识钟面,知道分针时针在钟面上如何计时理解1时=60分。
2、结合亲身实践和生活经验,体验时、分的长短,具有一定的时间观念。
体验数学与生活的联系,养成遵守和爱惜时间的良好习惯。
认识钟面,理解1时=60分。
体验时、分的长短。
第一课时:认识钟表
(一)激发兴趣
1、在上课之前,老师想让大家来猜一个谜
语,有信心吗?猜这个声音是什么东西发出来的?(滴答)。
2、今天我们就继续来学习关于钟表的一些
知识。
(二)认识钟面
1、出示钟面。关于这个老朋友,你已经知道
了什么?
(1)时针、分针、秒针。(你能说具体一点吗?哪根是秒针?对,又细又长的就是秒针。)
(2)数字。(有12个数字)
(3)大格。(从哪儿到哪儿为一个大格,还有呢?数数看,一共有12个大格)。
(4)小格。(你知道一个大格内有多少个小格吗?每个大格里有5个小格。钟面上一共有多少个小格呢?你是怎么知道的?我们一起来数一数。对,钟面上一共有60个小格。)
2、通过认识钟面,我们知道了钟面上最长最细的是秒针,还知道有12大格,60小格。下面我们再来看看分针、时针在钟面上是如何计时的。
(三)认识分
感受1时=60分
1、谁知道分针在钟面上是怎样计时的?走
2、小格呢?走5小格呢?从12走到2呢?可见,分针走几格就是几分钟。
3、那么,分针走一圈是多少分呢(板书)
4、下面,我们就来拔一拔,让分针走一圈。
在拔的时候,请大家注意观察,分针走一圈的时候,时针有什么变化?(老师拨钟)
5、谁知道时针走1大格是多少时间?时针走2个大格呢?走一圈呢?
认识钟表教学设计意图 认识钟表教学设计一年级篇二
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认识钟表教学设计意图 认识钟表教学设计一年级篇三
教学目标
1、使学生初步认识钟面,会看钟面的时间。
2、培养学生的观察能力和动手操作能力,发展学生的合作意识和应用意识。
3、建立时间观念,使学生从小养成规律的作息时间和珍惜时间的良好习惯,同时激发学生的学习兴趣,帮助学生思考解决问题,获得成功的体验,增强学生学好数学的信心。
重点难点
教学重点:正确读写钟表上的整时。
教学难点:正确迅速说出或拨出钟面上的时间。
教学策略与手段
谜语激趣导入、同学合作探究、闯关游戏
课前准备
钟面模型 、学生学具钟面 、课件
教学过程:
一、创设情境,谜语导入
1、师:同学们,你们喜欢猜谜语吗?今天老师给大家带来一个谜语,请你们来猜一猜.
师说谜语:我有一个好朋友, 滴答滴答不停走, 叫我学习和休息, 真是我的好帮手。
师:谁猜到了这是什么?
生:钟表(板书:钟表)
2、认识各种不同类型的钟表
钟表的兄弟姐妹可多呢!我们一起来欣赏一下这些钟表。(课件展示各种类型的钟表)这些钟表都是我们的朋友,我们的生活和学习都离不开它。这节课我们就与钟表交朋友,一起来认识钟表。(板书课题)
二、探究新知
1.认识钟面的组成
(课件出示钟面模型)同学们请看大屏,看看钟面上有些什么?然后在小组内交流讨论自己的发现。
生:汇报讨论结果(教师板书)。
生 :12 个数字。
师:哪些数字?
生:数字 1 —— 12 。
师:12在哪?6呢?3在哪?9呢?
生:钟面上有两根针,一根长,一根短。
师:这根又细又长的针是什么针?这根又短又粗的呢?
生:又细又长的是分针,又短又粗的是时针。
师:同学们观察非常仔细,你们太了不起了,现在请你们在您们的钟面模具上指出分针和时针。
2.教学整时
师:同学们,你们认识时间吗?(生说:认识)看来同学们的生活经验还真不少。那大家平时看到的时针和分针是静止不动的吗?
生:不是。
师:对,时针和分针要有规律地转动起来才可以帮我们记录时间。那它怎样转动呢?请看大屏。(课件演示)咱们一起来用手比划一下,这样转动的方向叫做顺时针方向。那么现在我们就试着认一认下面几个钟面上的时间,
请同学们观察这幅图(主题图),谁能说一说这是什么时间?图上的人在做什么?
生:这是早上7点,妈妈在叫孩子起床
师:平时生活中我们所说的“几点”是口头语,正确的书面用语是“几时”。所以同学说的7点我们就要说成7时(板书7时)。是几时直接在几的后面加上汉字“时”就可以,这是整时的第一种表示方法叫中文表示法。
师:谁能说一说7时的时候时针和分针分别指着几?
生说:时针指着7,分针指着12
师:你真是个爱观察的好孩子。
师说明:分针长长指12,时针指7就是7时。。
2、请同学们再用刚才的方法,说一说:下面3个钟面上的时间。 (课件出示钟面)
生说时间,师引导说:8时时针和分针分别指向几? 3时时时针和分针分别指向几? 6时时时针和分针分别指向几?
师:再仔细观察 3个钟面,你发现了什么?
生:分针都指向12.
师:分针指向12的时刻都是整时。到底是几时呢?我们要接着看时针,时针指向几,就是几时。
师小结:分针长长指12,时针指几是几时。
3、时间表示法
师:床头柜上有什么?这个电子表上的时间表示几时?是怎样表示的?
师小结:这是电子表示法:1个数字加上冒号再写两个0。通常电子表和电视屏幕上会用这种表示方法。
三、实践应用,巩固新知
师:下面我们就来进行智力大闯关。对自己有信心吗?老师相信你们是最棒的。
(一)进入第一关:拨钟小能手
1、师说时间,生自己动手拔一拔。
师:请同学们按我说的时间在钟表上拨出来
(1)请同学们拨8时。
(2)请同学们拨6时。
(同桌之间可以互相看一看拨的对不对)
师:你们可真棒!拨的都很准确
2、同桌互说互拔时间。
师:现在就请你们同桌之间互相拨时间,也就是一个说一个拨的。(生拨,师巡视、指导)
师:祝贺你们顺利闯过第一关。
(二)第二关
师:现在进入第二关:动手写时间
1、老师又给你们带来一位好朋友—小明,你们欢迎他吗?让我们走进小明的生活,看一看他一天什么时间都在做什么?
(1)(课件出示)小明9时在干什么?为什么都是9时,他做的事却不一样?
(2)学生说其他时间小明在做什么?(原来一天时针要转2圈,有上午的9时,经过中午、下午,又有了晚上的9时。因此,有时为了准确表达时刻前面还会加上上午、下午、晚上等表示时间词语。)
2、现在请同学在课本85页快速写出时间。
生在书上写,师巡视指导
(1)汇报。
(2)特殊钟面12时、6时。
提问:12时为什么只有1根指针,是表坏了吗?(时针和分针都指向12,重合在一起,只能看到一根指针)。
6时钟面时针和分针的位置有什么特点?(两根指针在一条直线上)
师小结:6时的时候,时针和分针在一条直线上,12时的时候,时针和分针重合,
(3)你觉得周末小明的一天安排得比较合理吗?(较为合理,有学习有休息有运动)
小结:我们要像小明一样,每天按时起床,按时学习,按时休息。合理科学地安排好自己的时间,养成良好的生活习惯。
(三)第三关:找朋友。(出示课件)
师:现在我们也给钟表找找朋友吧!
拨一拨、写一写、找一找巩固了本节课所学的知识。
四、们知道钟表可以帮助我们记录时间。在没有现代钟表的古代,想知道人们是怎样计时的吗?
(课件出示图片)远古时期,没有钟表聪明的人们就根据公鸡打鸣来确定时刻;慢慢地根据太阳的运动规律做成了日晷,根据太阳照射到指针上投下的影子指在石盘上的刻度来计时的;可是晚上或阴天时就不方便了:后来人们又发明了铜漏壶、水漏滴水计时,沙漏漏沙计时等;后来随着科学地发展,人们发明了各种各样的钟表,计时也就更加方便、准确了。
【通过课件展示的图片和老师的讲解,学生知道了我国古代的计时工具,激发了学生的民族自豪感。】
五、总结梳理,知识升华。
时间过得真快啊,一节课的时间即将过去了。这节课你们认识了哪位好朋友呢?学会了什么?
总结:时间对于我们每个人来说都是十分宝贵的,我们要珍惜时间,不浪费时间,做时间的小主人。希望同学们能合理利用时间,按时睡觉,按时起床,做一个遵守时间的好孩子。
板书设计
认识钟表
时针 又粗又短
分针 又细又长
中文表示法 7时
电子表示法 7:00
分针长长指12,时针指几是几时。
认识钟表教学设计意图 认识钟表教学设计一年级篇四
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认识钟表教学设计意图 认识钟表教学设计一年级篇五
教学内容:
人教版小学数学一年级上册第84--87页。
教材分析:
本节课主要是学生认识整时的情境题材,教材在这一情境中根据小朋友生活与学习的习惯安排时间,以供学生认识钟面。编写这部分内容的目的有两个:一是结合学生已有的生活经验,让学生学会看钟表,并会认读整时的时间;二是根据学生的年龄特点,适当地渗透珍惜时间的教育,使学生初步形成在什么时间该做什么事的习惯。
学情分析:
对现代的小学一年级学生而言,在入学前,已经积累了看钟表上的时间的经验(现在每个家庭基本都有钟表,大量的电视节目时间的显示又起到了潜移默化的作用)。因此在教学时就不能把认识钟表、整时作为“全新”的知识进行教学,所以本课的教学就充分唤起学生的已有经验,结合学生的生活实际,利用学具加强观察、比较及操作活动。
教学目标:
1、初步认识钟面,知道时针、分针以及钟面上的数字;学会结合生活经验去看整时,知道整时的两种表示方法。
2、通过观察、操作、交流等活动,发展学生的数学思考能力,培养学生的探究意识和合作学习意识,体验学习数学的乐趣。
3、初步建立时间观念,自觉养成遵守和珍惜时间、合理安排时间的良好习惯。
教学重点:
认识钟表,能正确认读整时。
教学难点:
初步建立时间观念,会看钟表上的时间。
教学准备:
多媒体课件、实物闹钟、电子钟、两针非联动教师演示钟、两针非联动学生钟。
教学过程:
一、创设情境、激发兴趣:
谈话:小朋友们,我们已经认识了很多数字朋友了,今天这些数字朋友又要来和我们一起学习,大家欢迎吗?
出示钟面12个刻度及刻度上的部分数字1、2、( )、4、5、( )、7、8、( )、10、11( ),学生补充完整。
问:看到这个图,小朋友们是不是觉得有点熟悉啊,生活中你见过吗?
(见过,是闹钟的钟面)
问:可是它与我们见过钟面相比,好像还差了点什么?
(指针)课件出示各种各样的钟表。
师:那我们把指针也请出来吧!
揭示课题:小小闹钟学问大,今天就让我们一起来认识钟表吧!(板书:认识钟表。)
二、借助经验,探究新知。
1、感知钟面:
问:我们现在见到的钟面上都有什么呀?
交流:12个数字、(12个大格)、2根指针(可能会有学生说有三根指针,教师指出:今天我们就委屈下秒针弟弟,暂不研究它)。
问:你知道这两根针的名字吗?
(长长的是分针,短短的是时针)(板书:长长的分针
短短的时针)
2、认识整时:
谈话:时针、分针两兄弟不停的在钟面上赛跑,就让我们知道了时间。它们的本领可大了,你听听……
(动画出示小红起床场景图)
问:在刚才的动画中你知道了什么?你从哪里知道的?
(小红起床的时间是7点,墙上的钟、桌子上的电子钟、还有小红的妈妈都告诉了我们。)
师:7点在数学里面叫做7时。你能说一说7时的时候时针和分针分别指着几?
(时针指着7,分针指着12。)
出示挂钟8时、3时、6时,问:你知道这都是什么时候吗?
交流,指导学生说说时针、分针分别指着几?是几时?
讨论:看了上面几个钟面,你发现了什么?
交流:它们的分针都指着12,8时时针指着8,3时时针指着3,6时时针指着6。
讲:刚才我们看到的7时、8时、3时、6时都叫做整时。(板书:整时)整时的钟面上分针都指着12,时针指几是几时。(板书:长长分针指12,短短时针指几是几时。)
反馈练习:①教师在钟面上拨出整时,学生说出表示的是几时。
②教师说一个整时,学生在钟面上拨出这个时间。
③同桌一个说整时,一个拨出整时。
师:小朋友们真不错,很快学会了认整时、读整时,那你知道8时、3时、6时时电子时钟上是怎么显示的吗?
交流:分别显示8:00、3:00、6:00。(课件出示相应的电子时钟。)
小结:整时有两种表示方法:第一种是用“数字”加上“时”字,几时就写几。如:7时、8时、3时、6时。第二种是数字后面加上冒号再写两个0。如:刚才的7:00、8:00、3:00、6:00。(通常电子时钟上用这种方法表示)
3、课中操。
三、运用知识,解决问题:
1、课件出示小明的一天,请你写出小明做这些事情的时间。
讨论:小明的一天安排得合理吗?
师:对,我们应向小明学习,不睡懒觉,合理安排,做健康、聪明的好孩子。
问:小明9时在做什么?
(读书、睡觉)为什么有2个9时?
(一个是上午9时,一个是晚上9时)学生回答后,师:“钟表爷爷白天陪着太阳公公走一圈,里面有个9时,晚上又陪着月亮婆婆走一圈,里面又有一个整时,白天的是上午9时,夜晚的是晚上9时。”
2、完成教材练习十九1到4题。
四、课堂总结
同学们表现得真好!时间是宝贵的,懂得珍惜时间,充分利用一天的每一分每一秒,那可是个好孩子。你们看,转眼间,我们这节课又快过去了,这节课你有哪些收获呢?
五、课堂作业
合理安排自己一天的时间,把它填在表中。
我的一天
7:00
起床
板书设计:
认识钟表
整时:
长长分针指12,
短短时针指几是几时。
7时
7:00
认识钟表教学设计意图 认识钟表教学设计一年级篇六
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认识钟表教学设计意图 认识钟表教学设计一年级篇七
人教版义务教育教科书小学数学一年级上册84页、85页。
1、引导学生在观察与对比中会认、读、写整时。
2、培养学生观察与表达的能力
3、沟通生活与数学的联系,引导学生感受时间的宝贵,教育学生要珍惜时间、按时作息。
认整时 、记录整时。
特殊时刻的认识.
(1)创设情景 引入新知
1、创设数宝宝情景
2、揭示课题
板书课题:认识钟表
(2)动手操作 探究新知
1、自主学习 认识钟面
(1)学生自己观察钟面,思考钟面上都有什么。
(2)提问:谁知道钟面上的这两根针叫什么名字?它们长得一样吗?
(3) 学生在其他钟面上指出时针和分针。
(4) 演示时针、分针旋转的方向,学生用小手指模仿操作。
2、归纳总结 认识整时
(1)依次出示三个钟面,分别提问:这是几时?现在时针指向几?分针指向几?
(2)分析比较找出规律,提问:学习了这三个钟面,请你比较一下,这三个钟面的时针和分针有什么相同的地方,不同的地方?
(3)归纳总结:
分针指向12,时针指向几就是几时。(板书)
(4)巩固新知:
拨一拨,说时刻。
(5)认识电子计时法
(三)巩固练习 拓展新知
1、投影出示教材85页的第一幅图,?
(1)提问:小明几时在做什么?师生共同完成其他几幅图。 投影展示,全班交流。
(2)问:小明9时在干什么?同样是9时,为什么做的事却不同?
2、判断时间
3、过几小时是几时?
4、拓展新知
你知道吗?(课件展示书上85内容)
(四)全课小结
认识钟表教学设计意图 认识钟表教学设计一年级篇八
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认识钟表教学设计意图 认识钟表教学设计一年级篇九
课题名称《认识钟表》
移秀兰 溱潼中心小学
·小学数学一年级
苏教版《数学》一年级上册84、85页一课时 · 认识时针、分针、整时、大约几时 · 认识钟表在日常生活中有着广泛的应用
1、知识与技能: 初步认识钟面,会看钟面上的整时和大约几时
2、过程与方法:发展初步的观察能力、动手能力、概括能力和合作意识。
3、情感态度与价值观: 建立时间观念,从小养成按时作息和珍惜时间的良好习惯; 体会数学与生活的密切联系,发展初步的数学应用意识。
本单元在学生掌握20以内数的基础上,联系日常生活的需要认识钟表面上的整时和接近整时。对于一年级的学生来说,时间既熟悉又陌生。有些学生已经具有一定的认识钟表的经验,但他们认时间、看钟表的方法是零碎的、不具体的;也有些学生在学习与生活中时间观念差,对钟表的知识感到陌生。这就需要在老师的引导下,提升、概括科学地认识钟表的方法,同时,对学生进行珍惜时间的教育,培养学生合理安排时间的良好习惯。
设计理念:设计本课时力求把新的教学理念融入课堂教学之中,整堂课都以学生自主探究和活动为主,让学生通过实际操作、亲自体验,认识钟表。拟在本课教学中体现以下几点: (一)知识呈现生活化:“数学的生活化,让学生学习现实的数学”是新课程理念之一。新知从生活中自然导出,使学生初步感知“数学从生活中来,到生活中去”,使数学课堂回归儿童的生活世界。
(二)学生学习自主化:本节课的教学内容认识钟表面、认识整时刻、判断大约几时等,都是在老师的引导下,学生在充分的动口、动手、动脑的探索过程中自主获得。
(三)学习过程活动化:新课程以学生主体活动为主要方式,把学习主动权交给学生。充分发挥信息技术的优势
恰当运用现代教育技术创设丰富多彩的活动情境,激起学生参与活动的兴趣与欲望,使学生总能处于一种新奇、兴奋、快乐的活动氛围中,亲自实践,大胆探索。
教学准备:课件,钟面模型等。
一)导入
1、(滴嗒滴嗒,滴嗒滴嗒??会走没有腿,会说没有嘴,它会告诉我们,什么时候起,
什么时候睡)。师:猜猜它是谁?
教师通过猜谜语,激发了学生强烈的兴奋感,营造了积极活跃、向上的学习气氛。 2、课件出示一些漂亮的钟,教师提问:你们喜欢它们吗?为什么?
学生回答后,教师揭示课题:是啊,钟表不仅外型漂亮,还可以告诉我们时间,这节课我们就来学习有关钟表的知识。
(二)动手操作,交流,探究知识 1、认识钟表
设计这一环节时,我注重给学生提供观察与思考,发现与表达的空间,注重给学生提供动手实践、自主探索的机会,我这样设计的目的是激发学生自主参与的意识,培养学生动手实践的能力。先让学生观察钟面,看看钟面上有些什么,然后小组交流
学生汇报观察结果,教师板书:时针 分针 12个数 2、教学整时
这一环节在教学形式上应重视学生的独立探索和合作交流的有机结合,因此在课堂中我让学生根据自己的思维方式去探究、去发现、去再创造,使每个学生都有一块属于自己的思维拓展空间。
出示3时的钟面,让学生说说表示的是是什么时刻?你是怎么知道的?
再出示1时、4时、6时的钟面,让学生说说是什么时刻,然后再提问:1时、4时、6时的钟面上,都有什么共同的特征?分针都指着什么数?你能用一句话说说看整时的方法吗?
小组讨论看整时的方法,通过讨论发现学生个性化的思维,培养学生的语言表达能力。 连一连:学生口头回答钟面时间,巩固看整时的方法
说一说:将整时融入小明一天的作息时间里,不仅培养了学生的语言表达能力,也将钟表知识与实际生活自然地结合起来,激发了学生的学习兴趣。
3、教学大约几时
出示7时、7时不到和刚过7时三个钟面 让学生用自己的语言表达三个钟面的时间
小结:一个是7时不到,一个是刚过7时,我们把它们都叫做大约7时 师追问:这两个都是大约7时,有什么不同呢? 生:一个是7时未到,一个是刚过7时 说一说:让学生说出钟面上大约是几时 (三)巩固练习
1.画一画:先让学生通过观察判断出缺少的是时针还是分针,再借助直尺画出钟面上缺少的针,这里还要提醒学生注意画时针和分针的区别。
2.掌握用上午、下午这些词语表示时间
这一环节通过让学生发现、思考、讨论有挑战性的问题,了解时针每天要在钟面上走两
圈,所以一天要走两个10时,拓展了学生的视野,使所学知识融会贯通,培养了学生的语言表达能力。
出示两幅表示10时的图,让学生观察,看能提出什么问题?通过观察学生发现两个都是10时,但不一样,一个是上午10时,一个是晚上10时。
提问:一天有几个8时,几个9时?
3.拨一拨:学生在钟面上拨出自己起床和睡觉的时间,然后同桌的同学说一说,要求说完整。教学这一环节时,教师顺势教育学生要合理安排好自己的作息时间,养成按时起床按时睡觉的好习惯。
4.说一说:让学生说说自己的一天是怎样安排的?
根据儿童的已有的生活经验和认知特点,如几时起床,几时睡觉,丰富了学生对时间的感性认识,使学生 充分感受时间就在身边的生活中,逐步建立了学生对时间的观念,联系了学生生活实际,突出了应用意识和实践能力的培养。
四、全课小结。
教学内容与
教师的活动
媒体的运用
学生的活动
教师进行逻辑选择
本节课利用多媒体组织教学,有效突出了重点,分解了难点;多媒体介入了学生感兴趣的钟面,激起了学生说的欲望。课堂效果显示学生能较灵活地运用自己小结出的方法进行练习。课后反馈反映出学生通过语言项目的学习,对认识钟表已经基本理解,包括认识整时和大约几时大多数学生掌握良好,由练习反馈也可知。
教师的作用就在于引导学生如何更有效地学习新知,尽可能将学生的学习效率最优化;同时教师还需创设有利于学生学习的环境,如借助生动形象的多媒体课件,引导学生观察、思考、交流、比较、总结,从而更好帮助学生更好地理解新知。
认识钟表教学设计意图 认识钟表教学设计一年级篇十
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认识钟表教学设计意图 认识钟表教学设计一年级篇十一
教学内容:
人教版《义务教育课程标准实验教科书》一年级上册数学第90页,完成第95页的练习
本节课在认识钟面和整时基础上认识半时,是今后学习时、分、秒的基础。这局部内容是本单元的难点。一年级的学生,以形象思维为主,有爱说、爱动、爱表示的特点,针对这一现状,结合他们生活经验和已有知识,设计富有情趣和意义的活动,使他们有更多机会从周围熟悉的事物中学习数学。
教学目标:
1、结合学生的生活经验认识几时半,初步体会几时半的含义。
2、结合实际情境,使学生养成遵守和爱惜时间、合理安排时间的良好习惯。对学生进行认真学习、积极锻炼身体等养成教育。
3、培养学生的观察能力。
教学重点:正确读写钟表上的半时。
教学难点:正确、迅速说出钟面时间。
教具学具:多媒体课件,指针式和数字式时钟模型各一个,学生用学具钟。
教学过程:
一、 创设问题情境
1、 动画故事《勤劳的小蜜蜂》引入。
多媒体出示小蜜蜂早晨起床、发现蜜源跳圆圈舞、找小伙伴、采花蜜的4个钟面时刻的画面。
2、 提出问题。
1) 同学们,勤劳的小蜜蜂想要写一篇日记,你能帮帮它吗?你能正确地说出钟面上的时刻吗?
生:勤劳的小蜜蜂早晨6时就起床了。
2) 你怎么知道是6时?
3) 它是什么时刻发现了蜜源,跳起了圆圈舞?你又是怎么看出来的?
(运用多媒体动画课件创设情景,复习旧知识,激发兴趣,调动情感,为新知识学习打下良好的基础。)
4) 它是什么时刻找小伙伴和采花蜜的?(出示10时半,11时半钟面)
3、 揭示课题:今天我们一起来认识这些新的时刻。
(设计意图:通过课件自然引入新课,符合一年级学生的特点,能激发学生的学习兴趣。)
二、 自主探索,合作交流。
1、 看黑板上的钟面。
1)(指10时半)这个钟面上表示的是什么时刻?(让学生猜测)你是怎么看出来的?
2)指着11时半的钟面:钟面上是什么时刻?你是怎么看出来的? (同桌互相讨论,交流汇报)
3)从以上两个钟面表示的时间,你发现了什么?
学生自由交流汇报:分针都指向6。
半时与整时分针指的位置有什么不同?
5) 全班交流,总结得出:几时半的时候,分针总是指向6,时针总是指在两个数字的中间。
(设计意图:通过让学生观察、分析、互相交流,找到半时时分针与时针指的位置的特征,使学生充分了解时针、分针在半时时候的指向,培养学生观察分析能力。)
2、 学会几时半的写法
1) 让学生试着写出10时半。
(指名板演,交流写法)
2) 归纳写法:冒号左边是几,冒号右边是“30”就表示几时半。(设计意图:放手让学生自己写半时,充分体现学生的主体作用,调动了学生的参与活动的兴趣。)
3、 这节课我们认识了什么?(板书课题:认识几时半)
三、 实践应用
1、 教师拨钟,学生读时间,并说说是怎么知道的?
2、 一学生拨钟,另一学生说时间,然后交换角色。
(设计意图:让学生拨一拨,说一说,在动手操作中体验、感悟新知,进一步认识几时半,从中感受到学习的乐趣。) 3、 投影课本第93页的“做一做”
结合学生的生活经验,给出上学的路上、上课、锻炼、看书等几
项活动。
1) 让学生结合自己生活经验独立完成。
2) 分组交流,说一说自己一天的生活中,几时半都在做什么,加深对半时的认识。
(设计意图:用实践应用活动巩固新知识,更贴近孩子的生活实际,使学生感受到生活中的数学。)
4、 完成第95页第4题
教师说明题意,学生独立完成,然后交流。
(设计意图:联系生活实际,进一步认识整时和半时)
四、 全课总结
师生共同总结:让学生说一说这节课你有什么收获?
师:同学们,我们学会了认识钟表,知道时间是最宝贵的,希望你们做一个遵守时间和珍惜时间的孩子。
(设计意图:给学生一个完整而深刻的印象,有利于学生把新知纳入已有的知识网络之中)
五、 拓展创新
让学生为自己设计一个快乐的星期天。
(设计意图:让学生通过设计星期天的活动,激发学生学数学,用数学的兴趣。)
教学反思:
《认识钟表》中“认识半时”这部分知识时,课前预设很充
分,上课时学生的表现也不错,能积极探讨,总结规律,但是在实践练习时,虽然大多数同学都作对了,但还是有部分同学做的不准确,看半时不准确,画半时知道分针指向6 ,不知道时针到底应指向哪里。下课后,我及时的进行了反思,觉得自己在让同学探究看半时,画半时时过于重视分针指向哪里,对时针的位置和方向探究的不够明确,没有把这部分的探究当做难点来突破 面对学生出现的错误,我设计了一堂延伸课,利用这些课堂生成的错题资源,引导学生找出产生错误的原因,找出它们产生错误的共性问题,逐步引导学生探究半时的时候时针应该指向哪里,需要注意的是什么,有没有什么好的方法能让我们更准确的画出半时时时针和分针的位置。可以让第一节课就画的比较准确的`同学用它们的方法,它们的语言来来进一步阐述,一帮一交流,沟通。设计富有层次的习题及时检验并加以巩固
按照这个思路,第二节课上的很成功,学生找到了错误的原因,并自己总结出了看半时,画半时的技巧和检查方法,扎实了看半时,画半时的方法。让学生体验到了成功的喜悦。突破了这一教学难点。及时的反思让我和我的学生都有收获。
认识钟表教学设计意图 认识钟表教学设计一年级篇十二
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认识钟表教学设计意图 认识钟表教学设计一年级篇十三
1、结合生活经验认识钟面,学会看整时。
2、建立时间观念,培养学生养成遵守时间、珍惜时间的良好生活、学习习惯。
3、培养学生的观察能力,能用所学的知识,合理安排自己的时间,做时间的主人。
正确读写钟表上的整时。
正确、迅速说出钟面时间。
电脑课件一套,闹钟一个,学具盒,制作钟表的工具
一、导入:
师:小朋友们,今天老师给大家介绍一位新朋友。瞧,它来了!(小闹钟的音乐响起来了)
问:它是谁?生说:小闹钟。
师:对了!我们早上起床的时候有些小朋友是妈妈叫醒的,有些是用小闹钟的,你们家有小闹钟吗?(有)你知道闹钟有什么用途吗?(显示时间的)在我们日常生活里面经常见到钟表,下面我们就来欣赏一些精致美观、造型独特的钟表好不好?(电脑出示,学生欣赏)(板书:认识钟表)
二、主动探索
1、做钟面。
a.欣赏完了这么多美丽的钟表,(课件中闹钟放大,展示出钟面)你们想不想自己动手做一个?在平时,你们也见过许多钟表,现在,就请你们闭上你们的眼睛,静静地想一想:钟面上都有些什么?(放音乐伴奏)
b.请参照屏幕上钟面的样子,二人一组,分组做一个钟面。比一比,哪一组做得最好看。谁愿意帮老师做一个?(让一组同学上讲台制作)
c.(教师出示大钟面)谁来说一说钟面上有些什么?
◆又短又粗的针叫时针,又细又长的针叫分针。
◆还有12个数,我们来数一数。
◆数字的旁边还有什么?再来数一数有多少格?
(课件中时针、分针、12个数、12个大格分别闪动。)
教师根据的回答进行板书:
数字:1、2、3、4、5、6、7、8、……11、12
针:时针(短)分针(长)
2.说钟面。
a.二人一组,拿着你们做好的小闹钟,互相说一说钟面上都有些什么。
b.(教师小结)时针、分针、12个数、12大格,它们组成了一个漂亮的钟面。
c.哪一组同学认为你们做的钟面最漂亮?举起你们的钟面给老师欣赏一下。
3、认识整时
(1).认识。
a.小丽的小闹钟响了很长时间了,你能说说现在是几时吗?你是怎么知道的?
◆长长的分针指着几?
◆短短的时针指着几?
◆教师小结:分针长长指12,时针指7就7时(学生跟着说,教师在黑板上贴7时的钟面)
b.7时了,小丽还在睡懒觉,再睡下去,她会迟到的!快告诉她现在几时了。板书:7时
(2)、认识电子钟
a.(课件演示,小丽的房间)看,小丽床边的桌子上还放着什么?
你在哪儿见过这样的钟?
b.电子钟是几时,你是怎么知道的?(教师在黑板上贴7:00)
c.小结:小圆点后面是两个零,前面是几就是几时。
(3)巩固练习
a.我们已经认识了整时,老师要考考大家。(黑板贴出8时、3时、6时的钟面。)学生上黑板写时间出来
b.教师拨钟,学生说几时(5时、12时)。
c.教师说几时,学生拨钟(1时、11时)。
d.学生说几时,学生拨钟。
e.学生独立完成课本92页(小明一天的时间安排)
(4)总结。
a.认识了这么多时间,你能说说怎样认识整时吗?
b.教师小结:分针长长指12,时针指几就几时。
三、游戏练习
1.练习一:找朋友。
a.教师发钟面头饰(练习十六第一题)
b.头饰上时间相同的才是好朋友,可千万不要找错呀。(教师带学生唱“找朋友”)
c.时间相同的小朋友,握握手做个好朋友
2、完成课件的游戏一和游戏二
总结
1.互相说一说今天你学会了什么。
2.我们今天认识了钟面,知道了分针长长指12,时针指几就是几时。
3、时间是很宝贵的,我们都要珍惜时间,好好学习!
开放题
1.(教师出示缺少时针的钟面,分针指向6)这是几时?少了根针,你能看出是几时吗?
2.(教师在1和2间贴上时针)现在是几时?我们下节课再来和小丽一起认识它。
认识钟表教学设计意图 认识钟表教学设计一年级篇十四
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认识钟表教学设计意图 认识钟表教学设计一年级篇十五
1、 会认,读整时;
2、 能够用两种方法表示整时;
3、 引导学生认识时间,帮助孩子从小养成珍惜时间和遵守时间的良好习惯。
虽然学生刚上一年级,但他们已经在生活中积累了一定认识钟表的经验,在教学整时认读时,首先让学生认识钟面,分清分针和时针,通过学生的讨论、交流,对比、观察“三个钟面(6时、8时、4时)有什么相同的地方”,得出结论:当分针指向12,时针指向几就是几时,然后通过活动,看一看、拨一拨,加强对整时的认识,与生活联系,出示电子表示法,通过练习使学生掌握用两种方法来表示整时,最后出示小明一天的作息时间,渗透学生学会合理安排时间,养成遵守和珍惜时间的好习惯。
一、指导语:今天是我们一一班全体学生第一次来多媒体教室上课,你们高兴吗?老师非常高兴,有这么多的老师在后面看着我们一一班小朋友,看看谁表现的最好。
引入课题:好了,大家坐的这么端正,老师就送大家一个礼物,猜一猜:有位好朋友,会走没有腿、会说没有嘴,他会告诉我们,什么时候起床、什么时候睡觉。(出示课件)提问:说一说你们在哪里见过钟表?
总结:你们在这么多地方见过钟表,钟表在生活中随处可见,大家真聪明!钟表能够告诉我们什么?(告诉我们什么时候上课、放学、吃饭、睡觉),它的作用多大呀!这节课:我们就来认识钟表,板书“认识钟表”。
二、新授
1、看,老师带来了一个钟表,你们仔细观察这个钟表,钟面上都有什么呢?
板书【分针(长)、时针(短)】还有12个数字,大家来读一下。
2、拿出你们手中的钟表,同桌互相指一指,那个是时针、那个是分针。
3、那我们认识了钟面,先把表放下,下面,我们来一起看一下,丽丽每天什么时候起床?你们认识钟面上的时刻么?
总结:我们生活中通常说的7点,在教学上把7点说成7时,大家仔细观察7时的时候,时针和分针都分别指着几呢?说得很好,分针指向12,时针指向7,这就是7时。
4、那你们知道这个钟表几时么?分针和时针都指着几?
5、仔细观察这几个钟面分针有什么相同的地方?
总结:分针都是指向12,时针指向(6、4、8),那么,我们就说:当分针指向12,时针指向几就是几时。
6、既然大家都认识了整时,老师就来考考你们,敢接受挑战么?
(1时、5时、7时、8时)回答的真好,老师说时间,你们自己动手拨一拨;同桌互相说时间,动手拨一拨。
我们刚才学习了用中文来记录整时,那么你们知道整时的另一种表示方法么?出示课件“12:00”,你们知道这是几时么?你们在哪里见过呢?(手机上、手表上、车票上……)。那么,我们来看一下7时,该怎么用电子表示法表示呢?先写7,接着在7的右下方写两个上下并排的小圆点,然后写两个0,他们都读作7时、7:00
三、练习
我们认识了时间,就要合理的安排好时间,下面我们来看一看小明是怎样安排时间的。
四、总结:
我们今天学会了什么?收获可真不小!那么我们就要像小明那样合理安排好时间,做一个珍惜时间、遵守时间的好孩子!
认识钟表教学设计意图 认识钟表教学设计一年级篇十六
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认识钟表教学设计意图 认识钟表教学设计一年级篇十七
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义务教育课程标准实验教科书数学(人教版)一年级上册
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初步认识钟表的面,借助已有的生活经验,在熟悉的生活情境中通过交流、合作、学会认读整时,认识钟表教学设计(李燕鸣)。初步建立时间观念。
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通过观察、讨论、比较等活动,培养观察能力和探究合作的学习意识。
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感受数学与生活的密切联系,体会数学的应用价值。结合日常生活作息时间,培养珍惜时间的态度和合理安排时间的良好习惯。
会看钟面的整时。
时间的两种书写方法
教 具:自制课件,钟面模型、
学 具:每人一张没有时针和分针的钟面、橡皮泥、两根牙签。
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今天老师给大家带来一位老朋友,他是谁呢?(课件显示图)懒羊羊怎么还在呼呼大睡,懒羊羊经常迟到,羊村的小羊们决定送给懒羊羊一件礼物,你们猜会是什么礼呢?(放音效)(闹钟)。
闹钟不停地嘀嗒嘀嗒地走着,它能告诉我们什么?
生:它催我们早早起床。
生:它能告诉我们时间。
除了闹钟,有这种作用的还有什么?
生:手表、台钟、挂钟、公鸡…
师:老师也收集了很多的钟表,它们漂亮吗?你们想不想认识它们?
揭题:今天我们一起来认识钟表。(出示课题)
4、钟表是我们生活中的好朋友,它不仅有漂亮的外衣,身上还藏着很多的数学知识,想不想和懒羊羊一起来了解它。
师:仔细观察钟面上有什么?
生讨论,汇报:有12个数字
师:都有哪些数字,这些数字在钟面围成一圈,最上面的数是( ),最下面的数是( ),最左边的数是( ),最右边的数是( )。
师:(课件出示)我这里有一个缺了数字的时钟,你能把残缺的钟面补齐吗?
师:钟面上除了有数字还有什么?(时针和分针)
师:两根针长得一样吗?长的针叫什么?短的针叫什么?
师:为了让小朋友记住这两根针,老师编了一句儿歌:时针长,分针短,转来转去真好玩。
出示四个钟面:找找钟面上的时针和分针。
小结:刚才通过小朋友的细心观察,我们认识了钟面,钟表没有嘴,但却能告诉我们,什么时候起,什么时候睡。什么时候该做什么事?那么钟面的时间你会看吗?懒羊羊可不会看,我们一起当小老师教教它好吗?
出示4时、6时、10时、12时四个钟面 说一说你是怎么看时间的?谁也能像他这样说?
比一比:拨出的时间有什么相同的地方什么不同的地方?
儿歌:分针指12,就是整时了,教案《认识钟表教学设计(李燕鸣)》。
钟面上有几个整时?
师:“一天时针在钟面上要走两圈,所以会有两个9时。要准确的表示时间还得用“上午、下午、晚上”这些词语。比如说:“上午9时,我在读书,晚上9时我在睡觉”。
师:“现在让我们拿出手中的钟表自己拨出一个整时的时间,然后说一个时间自己在做什么事?可以从早上说起。”
生拨再汇报
师:小朋友们,时间很宝贵,我们要养成合理安排作息时间,按时起床,按时睡觉的习惯。
我们学会了看时间还要学会把它记下来
(出示4:00的卡片)你见过这种时间吗?在哪见过?
生:电话显示屏上,电脑上,电视上,电子表上,手机上。
师:这是整时的第一种表示法,叫电子表示法。 请你模仿这种写法写出刚才钟面下的三个时间。师:说一说电子表示法表示整时有什么特点呢?
生:中间有“:”,后面都是00,是几时前面就是几。
记录时间还有另一种方法:
介绍用汉字“时”表示的方法
比较这两种写法有什么相同的地方,有什么不同的地方?
师:学会了看时间,写时间,我们还要合理的安排时间,我们一起来看小明的一天是怎样过的? 师:师:一天时针在钟面上要走两圈,所以会有两个8时。,为了区分这两个8时,我们说的时间前要记得加上早上、中午、下午、晚上这些时间词,如第一图,我们可以说小明上午8时在读书,谁也能像老师这样说?
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妈妈的话
1、快乐连连看
2、说一说
3、摆一摆:用两根牙签在钟面上摆出一个整时的时间并写下来。
4、游戏:人体时钟
5、画一画:用今天所学的知识设计一个漂亮的时钟,并写出所画的时间:说一说要怎么画?
事情做错了可以改,东西用了可以再买,可是时间呢?过去了就不再回来。小朋友们,一定要珍惜时间,合理安排时间。
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本节课主要是让学生结合自己的生活实际学会看整时,初步认识钟面。教材注意从学生的生活经验出发,在生动具体的情境中学习数学。由于时间和时刻都是比较抽象的概念,因此,根据学习内容的自身特点,根据课标精神,我在设计教学时力求体现动手实践,自主探索,联系生活,合作交流,人人参与。具体的有以下几个特点。
1. 精心设计情境,促使学生主动参与。
教学实践表明:教师只有精心创设教学情境,诱发学生强烈的求知欲,为学生学习作好充分的心理准备,他们才能主动探索,进而获取知识。
如羊村的小羊送礼物引入新课从而认识各式各样的钟表并了解它的作用。一来贴近生活,学生在生活中碰到过,学习后能为生活服务,二来通过具体事件丰富学生对时间的感性认识。
2. 自主探索,合作交流,人人参与。
教学改革的重点之一是改变学生的学习方式,促进学生的全面、持续发展。建构主义学习观认为,学习者是以自己的经验为基础,以自己的方式来理解事物。
如“认钟面”这一环节中,让大家观察钟面上有些什么,人人都参与观察、表达、交流,感性地接触到钟面,然后在反馈中自由地说,尽情地说,再从小朋友自己的语言中拉出所要学习的中心内容。
3. 重视动手操作实践。
“儿童的智慧在他的手指尖上。”课标倡导的学习数学的重要方式之一是动手实践,根据学习知识的性质特点,结合大量的操作活动来学习。
如钟面观察、拨时钟;练习书写时刻。在这些活动中,我放手让学生自己“做数学”,及时反馈交流,让操作与思维联系起来,让操作成为培养学生创新意识的源泉。
4、 关注学生的情感体验让学生在玩中学
为激发学生的学习热情,我把练习设计成有趣的数学游戏。如:快乐连连看、人体时钟、画一画。练习也富有弹性由易到难,让不同程度的学生都能从解决问题中获得成功感。特别是最后一题画时钟并用两种方法写出所画时间是对整节课的总结和概括。
认识钟表教学设计意图 认识钟表教学设计一年级篇十八
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认识钟表教学设计意图 认识钟表教学设计一年级篇十九
义务教育课程标准实验教科书小学数学一年级上册第91、92页,练习十六的第1、2、3题。
1.通过多媒体创设的生活情境,让学生学会认识整时。
2.知道钟面上有时针、分针、12个数、12大格。
3.帮助学生初步建立时间概念,培养遵守时间的好习惯。
让学生认识认识钟面,学会认识整时。
帮助学生建立时间概念,培养遵守时间的好习惯。
多媒体课件、大钟面、小钟面、钟面头饰。
小朋友们你们喜欢猜谜语吗?今天刘老师就给大家带来了一个谜语,想看看吗?(出示课件)能告诉我谜底是什么吗?(钟表)小雪人告诉我们答对了。知道钟表有什么作用吗?(学生自由回答)嗯,钟表的作用这么大,想不想和它成为好朋友呀?那咱们先看看它长什么样吧!(出示课题)
〔评析:抓住学生的年龄、心理特点,创设情境,激趣导入。〕
1.认识钟面。
a.在你们的桌上有一个漂亮的钟面,拿起来仔细看看钟面上有些什么?把你的发现说给小伙伴听听。(学生玩学具,教师指导。)
b.你们观察的真仔细,现在请小朋友们放下手中的小钟面,来看看我的超级大钟面。谁来说说你看到了什么?(出示钟面)
* 又短又粗的针叫时针,又细又长的针叫分针。
* 还有12个数,我们数一数。
* 数字的旁边还有什么?再来数一数有多少格?
(课件中时针、分针、12个数、12个大格分别闪动。)
( 教师小结)时针、分针、12个数、12大格,它们组成了一个漂亮的钟面。
〔评析:利用学生已有的知识经验,引导学生观察,通过说钟面这个环节,放手让学生自主学习,合作学习,交流讨论,解决第一个知识点。〕
1.认识。
(放铃声)听,谁家的钟表响了?(演示晶晶家)原来是晶晶的钟表响了。还不起床快告诉她现在几时了?(出示放大的钟表)你是怎么知道是7时的?
* 长长的分针指着几?
* 短短的时针指着几?
* 教师小结:分针长长指12,时针指7就7时。(学生跟着说,教师演示课件)
2.巩固。
a.抢答:分针指着12,时针指着8是几时?指着4呢?
b.真不错,欢迎小朋友们到智慧屋来做客,看看谁最聪明,能发现这些钟面时刻相同的地方。(出示8时、6时、1时)
(教师小结:分针长长指12,时针指几就几时。)
像这样分针指着12,时针指着几就是几时,我们把这样的时刻叫做整时。
c.能很快说出钟面上的整时吗?这么自信,那好咱们来比一比看谁说的又对又快!(出示3时、4时、11时、12时)
d.现在二人一组拨钟练习。
〔评析:教师注重让学生主动去学习,自己去探究。注重提供有趣的探索性的数学活动让学生合作学习,互相交流。如:互相说整时环节的设计。在这样的教学设计中教师转变了角色,成为数学学习的组织者、引导者、合作者。让学生投入到情境中去,在兴趣的激发下,在情境中观察、思考、口说、眼看、脑想。〕
3.认识电子钟。
现在你们和有着分针、时针的钟表成为好朋友了吗?其实还有一种表,长得很奇怪,要不要看看?(课件演示早晨,晶晶的房间)看到了吗?这是什么表?电子表是几时,你是怎么知道的?(教师在课件上演示7:00)
小结:小圆点后面是两个零,前面是几就是几时。
7时和7:00是一个时刻的两种写法,它们是一对好朋友。下面我们就来做一个找朋友的游戏好不好?(教师和学生唱“找朋友”。头饰上时间相同的才是好朋友,可千万不要找错呀。时间相同的小朋友握握手做个好朋友吧。问:“1:00,你的好朋友呢?”教师戴上1:00的头饰,原来在这儿呢!)
〔评析:对于电子表的学习,教师采用了一个有趣的活动,既巩固了新知,又放松了学生的身心,有利于提高学习效率。〕
1.小明的一天。
(出示几组画面学生说几时)希望小朋友们也像小明一样合理安排作息时间,回家后制定一个作息计划贴在床头,坚持去做。希望你们都有一个健康的身体,好好学习,好吗?
2.动脑筋。(过一小时是几时)
我看小朋友们精神百倍,那咱们再来一个智力大比拼好吗?
〔评析:教师设计的练习部分:“小明的一天”、“智慧屋”溶练习于游戏中,让学生在玩乐中巩固知识。课件中所出现上午一些生活情境,学生是有经验的。这对他们了解时间观念、更好的认识整时有很大帮助。〕
歌表演《时间像小马车》时间真的像小马车一样飞快的向前跑着,所以我们一定要珍惜时间!让我们都做时间的小主人,好吗?
〔评析:在数学课堂中,适时结合教材对学生进行思想教育,渗透“惜时”观念。〕
这节课的教学是一个愉快的过程,学生在教师创设的故事情境中学得饶有兴趣,学得积极主动。
“认识钟表”一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。抓住他们兴趣、激发他们的好奇心,是设计教学的前提。教师设计了色彩鲜艳的课件,采用情境教学法,用统一的一个动画形象和一个完整的故事将教学的几个环节有机的联系在一起,让学生在课件所创设的故事情境中学习。
在设计时,教师注意从学生的生活经验出发,课件创设的情境贴近学生的生活实际,如:早晨起床、中午吃饭、晚上睡觉等,让学生在生动具体的情境中学习新知。由于一年级学生的学习特点是要将他们日常生活的许多活动规范化,常识系统化,因此学生已有的生活经验对于他们理解数学知识是十分重要的。这些“经验”是学生的“数学现实”;同时,正是通过“经验”,学生经历一个从具体到逐步抽象活动的过程。一年级学生的数学学习是以经验为基础的认识过程,课件中所出现上午一些生活情境,学生是有经验的。这对他们了解时间观念、更好的认识整时有很大帮助。教师的设计很好的体现了这一点。
通过合作学习的方式,教师可以更好地了解学生,同时,学生通过合作促进主体的自我反省和自我意识。在教学中的说钟面、说整时、课后的游戏练习都是教师有意设计的合作学习的环节。
认识钟表教学设计意图 认识钟表教学设计一年级篇二十
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认识钟表教学设计意图 认识钟表教学设计一年级篇二十一
义务教育课程标准实验教科书数学第一册第91~92页
本单元主要是使学生结合自己的生活实际学会看整时和半时,初步认识钟面上的时针和分针,本节课是本单元的第一课时,主要是认识钟面上的整时数,先让学生认识时针和分针,再认识钟表(包括电子表)表面上的整时数.
1.结合生活经验,认识钟面,认识时针和分针,学会看整时。
2.培养学生初步的观察、分析、推理的能力。
1.通过拨表针、观察等实践活动,让学生体验数学与日常生活的密切联系,体会到学习数学的乐趣,提高学习数学的乐趣,建立学好数学的信念。
2.通过操作、观察、分析、推理等活动,培养学生主动参与探究的精神。
3.能用所学知识,合理安排自己的时间,做时间的主人。
使学生初步建立时间观念,教育学生要从小养成珍惜和遵守时间的好习惯。
正确读写钟表上的整时。
正确迅速说出或拨出钟面上的时间。
多媒体课件、钟表、
猜谜:一匹马儿三条腿,日夜奔跑不喊累,嘀嘀嗒嗒提醒你,时间一定要珍惜。
生异口同声地说:“闹钟”。
师:闹钟有什么作用呢?
生1:可以叫我们起床。
生2:可以告诉我什么时候干什么。
生3:可以告诉我们时间。
师:这节课,我们就一起来学习有关时间的知识。
板书:认识钟表
[评析:抓住学生年龄特征,用学生喜闻乐见的谜语引出钟表,引发学生强烈的兴奋感和亲切感,营造积极活跃、向上的学习氛围,为学习新知创设良好的情境。]
1.认识钟面。
请小朋友拿出自己的小闹钟仔细观察,看看钟面上都有些什么,然后小组交流交流。
生:自由观察活动。(师:课件出示4时)
师:谁愿意给大家介绍一下你的钟面上都有些什么?
生1:我的钟面上有三根针,又粗又短的是时针,较粗较细的是分针,那个又长又细的是秒针(师根据学生的回答逐一出示时针、分针及名称。)。
师:这个小朋友知道的可真多,他已经认识秒针了,真了不起,在以后的学习中我们会更一步地认识秒针。钟面上还有什么?
生2:钟面上有12个数。
师:小朋友们观察地真仔细,下面,我们再来观察一下,看看钟面上的时针、分针是怎么走的?(边说边拿实物钟演示)
生:我知道了,钟面上的时针、分针是顺着1、2、3、4、5、6、7、8、9、10、11、12的方向走的。
师:你能照这样的顺序拨一拨小闹钟吗?体验时针、分针是怎么走的。
生:动手拨小闹钟。
[评析:这里让学生亲自动手拨小闹钟,抓住了儿童的心理特点,同时为学生提供了动手实践、自主探索、观察与思考、发现、表达的机会,激发了学生的参与意识和积极性,同时又培养了学生的动手实践能力。]
2.认识整时。
请同学看这个钟面,谁知道现在表示的时刻是几时?(出示2时的钟面)
生:2时。
师:你是怎么知道的?
生1:妈妈教过我。
生2:分针指着12,时针指着2,就是2时。
生3:我是这么想的,分针指着12,时针指着2,这时的时刻就是2时。
师:咱们同学真了不起。那这个时刻又是几时呢?(手指大屏幕的4时)
生:4时。
师:你又是怎么知道的?同桌互相说一说。
生:同桌互相说。
师:请同学看大屏幕,这时的时刻你能马上说出是几时吗?
生:8时。
师:这个时刻我们一般该干什么呢?
生:我们在上课。
生:有时候,晚上的8时,我们在睡觉。
师:时间是宝贵的,我们要珍惜时间,好好学习。
师:你能用一句话说说看整时刻的方法吗?
生:沉默。
师:好,我们小组讨论讨论。
生:展开热烈的讨论。
师:谁愿意把你的方法介绍给大家?
生:分针指着12,时针指着几,这时的时刻就是几时。
师小结:小朋友们说的都很对,是的,分针指着12,时针指着几,这时的时刻就是几时。
师:想不想亲自动手拨一拨小闹钟?
生:想。
师:拨一个8时,看谁拨的又对又快,注意时针、分针转动的方向。
生:动手拨小闹钟。
师:请同学看大屏幕,你拨的和大屏幕上面的一样吗?
师:真了不起,我们再来拨一个3时。
生:拨钟。
师:谁愿意上来展示给大家看,说说你是怎么拨的?
生:积极举手表现自己。教师及时给以奖励。
[评析:教学形式上,重视学生的独立探索和合作交流的有机结合,课堂中让学生根据自己的体验,用自己的思维方式去探究,去发现,去再创造,使每个学生都有一块属于自己思维的开拓区域。]
3.掌握用上午、下午这些词语表示时间。
师:想不到小朋友们的动手能力这么强,下面,我们来看看大家的观察能力怎么样?请大家看你桌上的这张图,你能马上写出钟表显示的时刻是几时吗?比比看谁写的又对又快?
生:独立完成填空,有同学小声说:“怎么两个都一样?”
师:你发现什么了?
生1:两个一样,都是9时。
生2:两个都是9时,但不一样,一个是上午9时,一个是晚上9时。
师:小朋友们观察的真仔细。为什么会有两个9时呢?
生3:我知道,因为一天,时针要走两圈,所以有两个9时。
师小结:小朋友说的真好,对了,一天时针在钟面上要走2圈,所以有两个9时,因此,要准确地表达时刻,还得会用上午、下午这些词语。
[评析:让学生发现、思考、讨论有挑战性的问题,了解时针要在钟面上每天转两圈,所以一天中有两个9时,拓展了学生视野,使所学知识融会贯通,并培养了学生的语言表达能力。]
师:请同学们看大屏幕,你能用一句完整的话说说图中的小朋友在什么时刻干什么吗?
生1:小红7时起床。
生2:早上,妈妈叫小红起床。
生3:小红在早上7时起床。
师:那你是几时起床,又是几时睡觉的?在钟面上拨出来,并同桌互相说一说。
生:活动。
师:我们要合理安排好自己的作息时间,养成按时起床,按时睡觉的好习惯。
师:拨一个你最喜欢的时刻,并说说这个时刻你在干什么?
生:动手拨小闹钟。
师:下面,我们来轻松一下,做做课中操。
[评析:根据儿童已有的生活经验和认知特点,通过一些具体事件如:几时起床,几时睡觉,丰富了学生对时间的感性认识,使学生充分感受时间就在身边的生活中,逐步建立了学生的时间观念,再通过趣味性的练习,动手拨一个自己喜欢的时刻,并说说这个时刻在干什么。既联系了学生生活实际,又突出了应用意识和实践能力的培养。]
4.学习时刻的另一种表示方法
师:在我们日常生活中,除了用这种钟表示时刻外,还能用什么表示时刻呢?
生:用手表
生:用电子表。
(电脑出示3个时刻)
师:请同学们看这三个时刻,你发现了什么?
生1:都表示5时。
生2:一个是钟,一个是手表,一个是电子表。
生3:我发现前两个都是用分针时针表示的,第三个是用电子表显示的。
师:仔细观察,电子表是怎么显示时间的?
生:电子表的表面有两个点,左边是几就表示几时,右边是几,就表示几分。
师:这位小朋友真了不起,我们奖励给他一块奖牌。说的非常好,电子表的表面有两个点,当两个点的左边是几,同时,两个点的右边是两个0,这时的时刻就是几时。
师:像电子表显示的这种表示时刻的方法你还在什么地方见过?
生1:电话显示器上。
生2:电视上。
生3:手机上。
师:你能试着用这种方法表示2时吗?
生:练习。
师:谁愿意上黑板展示自己的写法?
生:积极要求表现自己。
师:(大屏幕显示8时)8时和3时用这种表示方法,又该如何表示呢?
生:在练习本上用第二种表示方法写。
[评析:通过学生观察比较,发现了表示时间的两种方法,再让学生在生活中找寻,为学生再次积累感性认知。]
1.师:请同学看大屏幕,时间老人还给我们送来2个钟面,你能准确地说出现在是几时,并说说这时候你该做什么吗?同桌互相说一说。
你能试着用两种方法把这两个时刻表示出来吗?
生:独立完成。
师:请同学仔细观察这两个钟面,看看6时和12时,钟面上的时针和分针有什么特点?
生:6时,时针和分针成了一条线。12时,时针和分针合在一起了。
2.师:猜谜:公鸡喔喔催天明,大地睡醒闹盈盈,长针、短针成一线,请问这时几时整?
生:6时整。
师:谁有补充?
生:早上的6时整。
师:那再过一小时是几时呢?
3.手势游戏:由老师给大家做几个手势,看看哪个小朋友能根据老师的手势马上说出是几时整?(3时、6时、9时、12时)
4.下面,我们来玩个拨钟表的游戏,同桌两人一人在钟面上拨针,另一个人说时刻,交换练习。
5.我们来玩个小品好不好?请几个小朋友上台来做几个动作,你猜他时什么时候做什么事情?用你的小闹钟拨出时刻,谁最先拨好就上好闹钤。
(1) 洗脸:拨的时刻有6时,6时半,7时,9时理由是晚上睡觉前洗脸。
(2) 睡觉:拨的时刻有8时,9时,10时,1时理由是午休。
(3) 读书:拨的时刻有8时,9时,10时。
(4) 吃饭;拨的时刻有7时吃早饭,12时吃午饭。
小结:小朋友们真能干,表演的小品真精彩,拨出的时间也很合理,一节课马上就过去了,时间对于我们每个人来说都很宝贵,我们不但要珍惜时间,还要合理利用时间,准确掌握时间,按时起床,按时睡觉,不浪费时间,做个遵守时间的好学生。能做到吗?
能和小朋友共同上一节课,老师感到非常的高兴,那这节课你有哪些收获呢?把你的收获告诉大家好吗?
[总评:充分利用了学具和多媒体教学手段,调动学生多种感官参与学习。让学生在实际中运用所学知识,密切联系实际。体现数学于生活,生活离不开数学。整节课以玩为主线,把教学内容清晰有趣的串了起来,设计新颖。教学过程科学合理,层次分明,层层递进,高潮迭起,教师科学有效地引导,给人一种渐入佳境、耳目一新的感觉。整节课的设计和课堂教学的实施主要体现了以下几点:
1.注重学生数学学习与现实生活的联系,教学中注意创设生活情境,使数学更贴近学生。注意引导学生用数学的眼光去观察和认识身边的各种事物,学会从生活中发现数学问题、提出问题并设法解决问题。
2.强调数学学习的实践性、探索性。教学中设置了许多新颖有趣的实践活动内容,注重学生的情感体验和个性发展,增强数学内容的趣味性、开放性,强调学生数学学习的过程。
3.教学形式、学习方式灵活多样。在整个教学过程中,教师和学生分享彼此的思考、见解,交流彼此的情感、求得新的发展。凡是学生能独立思考、合作探究发现的老师决不包办代替。做到让学生多思考、多动手、多实践,自主探索、合作学习、师生共同活动相结合,教学形式有分有合,方法多样,学生参与程度高,最大限度地拓宽了学生的思维,使课堂充满生机与活力。
4.评价使课堂教学焕发生命光彩。李老师绝不吝啬对学生的赞扬与激励,教师的一颗爱心使评价焕发出艺术的魅力。
5.整节课收放自如,学生和谐发展。师生角色分明,关系亲切融和。教师给学生创设了一个又一个的情境,引发一环又一环的问题,促使学生层层深入的思考,让学生自觉地、全身心地投入到学习活动中,用心发现、用心思考、真诚交流,时而困惑、时而高兴,在跌宕起伏的情感体验中自主完成对知识的建构。]
认识钟表教学设计意图 认识钟表教学设计一年级篇二十二
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认识钟表教学设计意图 认识钟表教学设计一年级篇二十三
教学目标
知识目标:学生通过动手操作初步认识钟表,知道时针、分针及钟上面的数字;并结合学生生活经验会看整时,知道整时的两种表示方法。
能力目标:通过观察、讨论、比较等活动,培养观察能力和探究合作的学习意识。
情感目标:感受数学与生活的密切联系,体会数学的应用价值。结合日常生活作息时间,培养珍惜时间的态度和合理安排时间的良好习惯。
2重点难点
教学重点:区分时针和分针整时的认读方法。
教学难点:初步建立时间观念,会看钟表时间。
3教学过程
3.1 第一学时
3.1.1教学活动
活动1【导入】创设情景,激发兴趣
1.听儿歌,引起兴趣
师:同学们,你们喜欢听儿歌吗?苏老师这里有一首儿歌,请同学们听一听。(播放儿歌)
2.猜谜语,揭示课题
师:其实这首儿歌是一个谜语,你知道谜语中的他是谁吗?(钟表)他就是我们生活中经常用到的钟表,那钟表有什么作用呢?
师:看来在我们生活中离不开钟表,今天这节课我们就来认识这个新朋友——钟表(板书课题)。
师:我们先来看几张钟表的图片(课件出示各种不同的钟表)喜欢这些钟表吗?那我们现在就和他们交朋友吧!
活动2【讲授】联系生活,认识钟面
1.认识钟面上的数字
师:同学们请看大屏幕,这是一个钟面,钟面上藏着许多小秘密,请你们仔细观察,钟表面上有些什么呢?和你的同桌小声的说一说。(引导学生发现1到12这些数,并集体数数)最大的数是几?
师:这12个数字把整个钟面分成了一些相等的大格,比如说12到1之间是一大格,2到3之间也是一大格,还有哪两个数之间也是一大格呢? (学生交流)(自己数一数钟面上一共有多少大格)
2.认识指针
师:那再看看钟面上还有什么呢?(认识时针和分针)那请同学们来看一看分针和时针他们长得有什么不同的地方呢?(讨论时针和分针的区别:时针又短又粗,分针又长又细,而很多时钟中粗细是可以一样的,判别的主要方法还是看长短)
师:他们又有哪些相同的地方呢?(都是按同一个方向旋转)
活动一:同桌指一指,拨一拨
师:请你们拿出钟面和你的同桌指一指,认一认。哪个小朋友告诉我你是怎么记住分针和时针的呢?
3.小结:钟面上有1到12个数字,总共有12个大格,还认识了分针和时针。
活动3【讲授】自主探索,会认会读整时
1.认识7时
师:伴随着这闹铃声,小红的一天开始了(播放小红起床动画)小红每天按时起床,你知道小红是什么时候起床的呢?(学生反馈,纠正7点的错误读法)
师:请你仔细来看一看这幅图,你是从哪里看出来小红是7时起床的呢?(学生反馈)观察挂钟7时的时候时针和分针分别指向几?(分针指向12,时针指向7,他就是7时)(找另外几个小朋友同样再说一遍)
活动二:同桌说一说
师:你们都会说了吗?和你的同桌说一说。
师:我们在记录7时的时候,可以请汉字来帮忙,先写数字7,再加上一个时间的时。
2.认识9时
师:小红吃完早饭来到学校准备上课了(展示小红上课图片)小红是什么时候上课的?(学生反馈)讲解9时的时候时针和分针分别指向哪,并记录9时(学生来写)。
3.认识5时
师:小红回家感觉累了,他想看会动画片(展示小红看动画片图片),小红是几时看动画片的呢?(学生回答,讲述5时的时候时针和分针分别指向哪,并自主记录5时)
4.认识整时
师:请你们仔细观察这三个时间,时针和分针在钟面上的位置,他们有哪些相同的地方?(讲解三个钟面的分针都指向12)
小结:在数学中,我们把分针指向12的这个时刻称为整时
师:那他们又有哪些不同的地方?(说说不同在哪里)
小结:7时的时候时针指着7,分针指着12,7时的时候时针指着9,分针指着12,所以说当分针指着12的时候,时针指着几,就是几时
活动三:同桌说一说
师:把你的发现和你同桌小声的说一说。
活动四:老师拨时钟学生认时间
师:接下来老师来拨一个整时,你知道他是几时吗?拨整时的时候通常,我们先拨分针,再来拨时针。
(拨好6时)老师每天在这个时间起床,你知道他是几时吗?(学生反馈)谁来说说你是怎么知道的?(学生反馈)
活动五:学生拨时钟(同桌检查是否拨对)
师:那你们想来拨一个整时吗?拿出你们的时钟,听清楚老师的要求:
(1)拨出老师下午上课的时间:1时。说一说怎么拨的?(学生反馈)
(2)老师每天12时吃午饭。说说怎么拨的。(学生反馈)讨论12时的时候分针和时针的位置。(都指向12,并且重合到了一起)
(3)拨一个自己喜欢的整时并且说一说怎么拨的,这个时刻又在做什么。(请几个学生上来展示一下他们拨的整时,可以说说为什么喜欢这个时间)
学生上来拨到我的钟表上。
5.认识电子表形式的整时
师:同学们,你还记得小红是几时起床的吗?请看大屏幕,除了挂钟上显示的时间,你还可以从哪里知道小红起床的时间?(展示7:00),请问这表示是几时?你在哪里见过这样的写法?(电子钟上,电脑、手机上)
讨论电子表的形式是怎么记录时间的。(认一认这几副图片的时间,说一说他是怎么记录的)
动手用电子表的形式写7时。(先写一个7,再写两点)
讨论两点的位置和形状。(这两个点是两个小圆点,一上一下,在中间)
提醒0的位置和多少。
动手用电子表的形式写9时和5时。(找两个学生写9时和5时,教师进行检查和补充)
小结:用数字表示整时,两点右(后)边是2个“0”,两点左(前)边是几时就是几时。
活动4【练习】练习巩固,智勇大闯关 评论
1、完成书本85页做一做:小明的一天。(实物投影学生写的时间,写完后讨论为什么都是9时,小明却在做不同的事情)
小结:我们一天当中有2个9时,因为时针在一天当中会走两圈,就会产生两个9时,一个是早上的9时,一个是晚上的9时。
(观看一天中时针绕两圈的动画)
小结:我们要向小明学习,做一个珍惜时间,合理安排时间的学生,做时间的小主人。
2、完成书本86页第一题,用尺子连一连,帮帮挂钟找到他电子钟的好朋友。(说说为什么他们能做好朋友)
小结:挂钟和电子钟都能表示时间。
活动5【讲授】知识拓展
师:同学们,我们在生活中看到过各式各样的钟表,那你想知道古时候的人们是怎么记录时间的吗?(播放日晷和圭表的介绍视频)
小结:古代人们用来计时的东西还有很多,有兴趣的同学可以下课后可以从书本或者上网去查一查。
活动6【讲授】课堂总结
师小结:那今天这节课我们就上完了,请同学们来说一说你收获了什么?
今天我们认识了整时,其实在我们的生活中还有其他几种类型的时间,比如说半时,几时几分,像这样的时间我们会在以后的课堂中进行学习,今天的课我们就上到这里。
认识钟表教学设计意图 认识钟表教学设计一年级篇二十四
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认识钟表教学设计意图 认识钟表教学设计一年级篇二十六
义务教育课程标准实验教科书数学第一册第84、85页。
1、让学生初步认识钟面,会看钟面上的整时和大约几时。
2、发展学生初步的观察能力、动手能力、概括能力和合作意识。
3、通过拨表针、观察等实践活动,让学生体验数学与日常生活的密切联系,体会到学习数学的乐趣,提高学习数学的乐趣,建立学好数学的信念。
4、通过操作、观察、分析、推理等活动,培养学生主动参与探究的精神。
5、能用所学知识,合理安排自己的时间,做时间的主人。
6、让学生初步建立时间观念,从小养成有规律的作息和珍惜时间的良好习惯。
多媒体课件、钟表、学生操作用的小钟表
(一)创境导入
1、 师:听滴嗒滴嗒,滴嗒滴嗒……会走没有腿,会说没有嘴,它会告诉我们,什么时候起,什么时候睡,猜猜它是谁?
师:钟表是我们生活中不可缺少的,钟表不仅外型漂亮,还可以告诉我们时间,这节课我们就来学习有关钟表的知识。板书:认识钟表。
2、课件出示一些漂亮的钟,教师提问:你们喜欢它们吗?
(二)动手操作,交流,探究知识
1、认识钟面。
请小朋友仔细观察自己手上的时钟,看看钟面上都有些什么,然后同桌交流一下。生:自由观察活动。师:谁愿意给大家介绍一下钟面上都有些什么?
学生汇报
1、时针。时针在哪里呢,请你快到前面来找一找。对了,这根针叫时针,它长得什么样?谁来说一说。(师板书:时针:短粗)。分针:请学生到前面来指,说出长得什么样子。它和时针比起来细一些,长一些。(板书:细长)
2、数:你领我们一起来数数好吗?(板书数12个)(1-12)真有12个数,你观察得可真仔细,大家觉得他数得怎么样?同学们请你从1开始按顺序数一数自己表上的12个数。
3、12个大格:我们一起来按顺序数一数
师:你能照这样的顺序拨一拨小闹钟吗?体验时针、分针是怎么走的。
2、出示图片,认识整时
学生分组交流、讨论、在同伴的合作中学会看整时师:哪些组的同学愿意当小老师,给全班同学说一说,你们是怎样认这些钟面上的时间的?生汇报。(学生互相评价)师引导。
3、仔细观察,整时的钟面有什么相同的地方?(小组讨论)
汇报:得出结论。(生评价)
4、结论:分针指着12,时针指着几就是几时整。
5、学习电子时刻写法。
6、小明的一天:对于整时两种写法的巩固,以及一天有两个8:00的认识。
三)应用新知,巩固发展
1、我拨你说
2、我说你拨
3、看一看补一补:如何画整时?
4、设计尝试:请同学们自己做主,当一次小小设计家。
设计自己的一天。
四)全课小结
反思:一年级的课主要是吸引学生目光和注意力为主要关键,在教学环节的设计上,努力做到从教材和学生的生活经验出发,根据学生的认知水平充分联系学生生活实际,通过游戏,动手操作,课件演示充分吸引了学生的注意力,放手让学生看一看、拨一拨、说一说,引导学生观察,通过说钟面这个环节,放手让学生自主学习,合作学习,交流讨论,解决第一个知识点。学生们课上表现积极而又有序,知识点掌握还不错,学生在合作中分享着互助与竞争,体验到了成功的喜悦。但有些学生上课习惯不好,还需要加强行为习惯的规范练习,再就是练习也需要在多点类型,让不同的学生体会不同的成就感,每节课都是不完美的艺术,需要我们不断地加强自身的素质,让自己的课堂不断完善!
认识钟表教学设计意图 认识钟表教学设计一年级篇二十七
1、能够认识钟面,认识整时,会用两种方法记录整时。
2、通过读、想、说、练等实践环节,提升学生合作探究的能力。
3、能够初步建立时间观念,自觉养成珍惜时间、合理安排时间的好习惯。
重点:认识钟面,知道整时的表示方法。
难点:会用两种方法表示钟面上的时间。
一.课前两分钟 (3分钟 )
小主持人主持,两分钟的小视频——《一寸光阴一寸金与古人记录时间的方法》,对孩子进行科普,古代人是用日晷等记录时间,再介绍现在生活中人们用什么记录时间。由此导入课题,板书课题。
二.出示学习目标(2分钟)
生齐读学习目标,带着目标准备开始学习任务。
三.小组交流(5分钟)
心中带着目标,拿出前置小研究和准备好的钟表,小组讨论积极配合,动手操作,分工明确。
四.小组展示(15分钟)
小组长:带领孩子向大家问好介绍自己小组
生1:向大家展示第一题,我发现钟面上面有数字,有时针,有分针,我的汇报完毕,谁愿与我交流。
生交流:我还发现了时针长,分针短;我还发现了一个特点,时针转得慢,时针转的快。
生2:在展台下边说边展示第二题,分针指向12,时针指向8,是8时;分针指向12,时针指向3,是3时;分针指向12,时针指向6,是6时,我的汇报完毕,谁愿与我交流。
(生操作交流过程中,师适时板书)
生交流:你说的很好,就是说的有点慢,没有珍惜时间;你说的很好,可是我表示的是8:00,可以吗?(此时,师适时引导。两种写法都可以,审清题意,选择适当的写法。)
生3:我来给大家汇报第三题,整时的写法,读法。生交流。
生4:我来给大家汇报最后一题。
生交流:你画的针不直;你画的两个针长短差不多,我们分不清。
五.谈收获(5分钟)
生做小老师进行汇报,老师带着孩子再次强调重难点。
六.我会练(8分钟)
小明的一天,生准确的说出小明每个时间点在做什么。
并结合今天学习的知识,做一张自己的时间作息表,用来提醒自己什么时间该做什么事。养成合理利用时间的好孩子。
七.赠名言
一寸光阴一寸金,寸金难买寸光阴。(下课)
认识钟表教学设计意图 认识钟表教学设计一年级篇二十八
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