以内数的认识教案(完整版).doc

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1、以内数的认识教案（完整版）(文档可以直接使用，也可根据实际需要修改使用,可编辑 欢迎下载）1000以内数的认识教学设计【教学内容】人教版义务教育课程标准实验教科书数学（二年级下册）第6869页【教学目的】1.让学生经历数数的过程，掌握数1000以内数的方法，识计数单位“千”。2.运用计数工具，让学生学会读、写千以内的数，知道这些数是由几个百、几个十和几个一组成的。3.让学生在用具体的数描述生活中的事物中，培养学习数学的兴趣和自信心，逐步发展学生的数感。4.结合现实素材让学生感受大数的意义，体验数在生活中的运用。【教学重难点】教学重点：正确数千以内的数，认识计数单位“千”，掌握读数、写数的方法和

2、数的组成。教学难点：接近整十、整百、整千数的数法；建立数位的概念。【教学准备】 小棒，计数器，课件【教学过程】一、激发兴趣，导入新课（1） 师：同学们，今天我们班里来了几位客人，（课件出示）大家认识吗？ 我们一起说出它们的名字好不好？生：认识，喜羊羊、美羊羊、沸羊羊、懒羊羊、慢羊羊。师：它们想要了解了解我们的学校，问了以下几个问题？我们一起来解答好不好？（课件出示）1、我们班有多少位同学？（55）55是我们已经学过的100以内的数，你能说说55的组成吗？2、我们全体二年级大约有多少位同学呢？一个班大约有60人，5个班大约有多少人呢？（大约有300人）300是不足100还是超过100的数呢？（超

3、过100的数）3、那我们全校大约有多少位同学呢？一个年级大约有300人，六个年级大约有1800人。1800是100以内的数还是超过100的数呢？（超过100的数）看来我们以前学过的100以内的数已经不够用了，今天我们就和喜羊羊们一起来学习-一千以内的数二、实践操作，探究新知（一）羊村里有很多羊，我们和喜羊羊一起去数一数，大家想不想去？请看大屏幕，数一数，这里有多少只羊呢？（10只）后来羊村的羊越来越多了，（课件出示）你先猜一猜，你有什么好办法？（一小群是10只，总共有10小群，10 个十是一百）现在羊村的羊这么多了，你先估一估，再想办法数出来。（老师引导，师生一起数出大约有10个一百，数到10

4、00只羊）师：经过我们的努力和聪明才智，帮喜羊羊数出了羊村的羊大约有1000只。老师听说懒羊羊在数数时也遇到了一些困难，我们一起去帮帮它好不好？请看大屏幕，数一数，这里有多少个小正方体（10个）说说你是怎么数的？（一个一个地数）一个一个地数，10个一是十。（板书）一个一个地数，10个一是十师：（课件出示）猜一猜有多少个？你想怎么数？生：10个10个的摞起来，有10摞，排成一排（板书）10个十是一百师：（课件出示）这么多小正方体你猜猜有多少个？你有什么办法可以很快的数出来？生：一排100个，我们可以排成10排，10个一百。（引导学生从100数到1000）（板书）10个一百是一千（二）师：“千”是

5、我们今天学到的一个新的计数单位，在计数器上找到“千位”。师：同学们，整百整百地数，大家会数了，一个一个地数你们会吗？现在我们再来看下面这道题：从一百九十八起，数到二百零六。（学生自己数）师：用计数器边拨边数，数到一百九十九，接下来数什么？生：满十要向前进一师：谁能给大家演示“满十进一”的过程师：我们看一看喜羊羊是怎么拨数的（课件演示）大家学会了吗？自己动手再拨一次。师：下面我们让计数器先休息一下，我们开火车数数好不好？生：好师：看美羊羊出的题目，火车头开始出发。生：195204师：懒羊羊出的题目是生：9851000师：同学们太棒了，挑战成功了！（三）师：我们拨这个数字“126”，观察计数器它是

6、由几个百几个十几个一组成？生：一个百二个十六个一组成。师：把这个数字在你的练习本上写出来。（板书：写作：126）试着读一读并把读法写出来（板书：读作：一百二十六）师：拨304说组成，并写出来，你有什么需要提醒的吗？生：写的时候中间那个“0”不能丢掉。师：你提醒的很及时，有些同学已经把“0”省略了，就变成34了。你知道这个“0”写在十位上有什么用吗？生：占位的。当数位上一个计数单位也没有，都要用“0”来占位。师：对了，那怎么写读法呢？生：读作：三百零四。师：“0”要用汉字”零”来写，跟我一起写一遍，检查你的读法写对了吗？师：拨580说组成，并写出来。（板书：写作580）读一读生：五百八十师：如何

7、写读法呢？注意什么？（板书：读作：五百八十）生：末尾的零不用读出来，但是不能省略，表示占位。师总结：课件出示三、巩固练习：课件出示“做一做”并集体订正。1.读出下列各数，说一说组成。330：三个百三个十 580：五个百八个十2.写出下列各数。八百六十八 868 九百五十 9503.拓展练习：1）破解杨村门口的密码（课件出示）；2）修改沸羊羊的日记；3）羊羊排队，你会吗？（小组讨论）四、小结：今天你有什么收获？五、板书设计。1000以内数的认识10个一是十 例2 写作：126 读作：一百二十六10个十是一百 写作：304 读作：三百零四10个一百是一千 写作：580 读作：五百八十（英文版 ）

8、Two regulations promulgated for implementation is in the party in power for a long time and the rule of law conditions, the implementation of comprehensive strictly strategic plan, implementation in accordance with the rules and discipline to manage the party, strengthen inner-party supervision of m

9、ajor initiatives. The two regulations supporting each other, the adhere to a positive advocate, focusing on morality is of Party members and Party leading cadres can see, enough to get a high standard; around the party discipline, disciplinary ruler requirements, listed as negative list, focusing on

10、 vertical gauge, draw the party organizations and Party members do not touch the bottom line . Here, the main from four square face two party rules of interpretation: the first part introduces two party Revised regulations the necessity and the revision process; the second part is the interpretation

11、 of the two fundamental principles of the revision of laws and regulations in the party; the third part introduces two party regulations modified the main changes and needs to grasp several key problems; the fourth part on how to grasp the implementation of the two regulations of the party. and revi

12、sed the necessity and revised history of the CPC Central Committee the amendment to the Chinese Communist Party members and leading cadres honest politics several guidelines and column 1 by 2021 to strengthen party laws and regulations focus. Two party regulations revision work lasted a Years, pooli

13、ng the wisdom of the whole party, ideological consensus, draw historical experience, respect for the wisdom of our predecessors, which reflects the unity of inheritance and innovation; follow the correct direction, grasp the limited goals, adhere to the partys leadership, to solve the masses of the

14、people reflect a focus on the problem. The new revision of the and , reflects the partys 18 and the eighth session of the third, the spirit of the fourth plenary session, reflecting the experience of studying and implementing the General Secretary Xi Jinping series of important speech, reflects the

15、partys eighteen years comprehensive strictly practice. (a) revised two regulations of the party need of in based on revised, the promulgation and implementation of January 2021, to strengthen the construction of the contingent of leading cadres play an important role. But with the party to manage th

16、e party strictly administering the deepening, has not been able to fully meet the actual needs. Content is too complicated, eight prohibition, 52 are not allowed to hard to remember, and also difficult to put into practice; the second is concisely positive advocated by the lack of prohibited provisi

17、ons excessive, no autonomy requirements; the third is banned terms and discipline law, both with the party discipline, disciplinary regulations repeat and Criminal law and other laws and regulations repeat; the fourth is to clean the theme is not prominent, not for the existing problems, and is narr

18、ow, only needle of county-level leading cadres above. is in 1997 based on revision, in December 2003 the promulgation and implementation, to strengthen the construction of the party play very important role. Along with the development of the situation, which many provisions have been unable to fully

19、 meet the comprehensive strictly administering the practice needs. One is Ji law, more than half of the provisions and criminal law and other countries laws and regulations Repetition; two is the political discipline regulations is not prominent, not specific, for violation of the party constitution

20、, damage the authority of Party Constitution of misconduct lack necessary and serious responsibility to pursue; third is the main discipline for the leading cadres, does not cover all Party members. Based on the above situation, need to and the two is likely to be more relevant regulations first ame

21、ndment. By revising, really put the authority of Party discipline, the seriousness in the party tree and call up the majority of Party members and cadres of the party constitution of party compasses party consciousness. (II) two party regulations revision process the Central Committee of the Communi

22、st Party of China attaches great importance to two regulations revision . Xi Jinping, general books recorded in the Fifth Plenary Session of the eighth session of the Central Commission for Discipline Inspection, on the revised regulations made clear instructions. According to the central deployment

23、, the Central Commission for Discipline Inspection from 2021 under six months begin study two regulations revision. The Standing Committee of the Central Commission for Discipline Inspection 4 review revised. Comrade Wang Qishan 14 times held a special meeting to study two regulations revision, amen

24、dment clarifies the direction, major issues of principle, path and target, respectively held a forum will listen to part of the province (area) secretary of the Party committee, Secretary of the Discipline Inspection Commission, part of the central ministries and state organs Department The first pa

25、rty committee is mainly responsible for people, views of experts and scholars and grassroots party organizations and Party members. Approved by the Central Committee of the Communist Party of China, on 7 September 2021, the general office of the Central Committee of the Party issued a notice to soli

26、cit the provinces (autonomous regions, municipalities) Party, the central ministries and commissions, state ministries and commissions of the Party (party), the General Political Department of the military, every 3 people organization of Party of two regulations revision opinion. Central Commission

27、for Discipline Inspection of extensive solicitation of opinions, careful study, attracting, formed a revised sent reviewers. In October 8 and October 12, Central Committee Political Bureau Standing Committee and the Political Bureau of the Central Committee After consideration of the two regulations

28、 revised draft. On October 18, the Central Committee of the Communist Party of China formally issued two regulations. Can say, two laws amendment concentrated the wisdom of the whole party, embodies the party. Second, and revision of the basic principles of two party regulations revision work and im

29、plement the partys eighteen, ten eight plenary, the spirit of the Fourth Plenary Session of the Eleventh Central Committee and General Secretary Xi Jinping important instructions on the revised and , highlighting the ruling party characteristics, serious discipline, the discipline quite in front of

30、the law, based on the current, a long-term, advance as a whole, with Bu Xiuding independent and . Main principle is: first, adhere to the party constitution to follow. The constitution about discipline and self-discipline required specific, awaken the party constitution of party compasses party cons

31、ciousness, maintaining the authority of the constitution. General Secretary Xi Jinping pointed out that no rules, no side round. Party constitution is the fundamental law, the party must follow the general rules. In early 2021 held the eighth session of the Central Commission for Discipline Inspecti

32、on Fifth Plenary Session of the 16th Central Committee, Xi Jinping again pointed out that constitution is the party must follow the general rules, but also the general rules. the revision of the and is Method in adhere to the regulations established for the purpose of combining rule of virtue is to

33、adhere to the party constitution as a fundamental to follow, the constitution authority set up, wake up the party constitution and party rules the sense of discipline, the party constitution about discipline and self-discipline specific requirements. 4 second is to adhere to in accordance with the r

34、egulations governing the party and the party. The Party of rule of virtue de, mainly refers to the partys ideals and beliefs, excellent traditional style. The revised the closely linked to the self-discipline, insisting on the positive initiative, for all members, highlight the vital few, emphasized

35、 self-discipline, focusing on the morality, and the majority of Party members and the ideological and moral standards. The revised Ji method separately, Ji, Ji Yan to Method, as a negative list, emphasizing the heteronomy, focusing on vertical gauge. Is this one high and one low, a positive reaction

36、, the strict party discipline and practice results transformation for the integration of the whole party to observe moral and discipline requirements, for the majority of Party members and cadres provides benchmarking and ruler. Third, insist on to. In view of the problems existing in the party at t

37、he present stage, the main problems of Party members and cadres in the aspect of self-discipline and abide by the discipline to make clearly defined, especially the partys eighteen years strict political discipline and political rules, organization and discipline and to implement the central eight p

38、rovisions of the spirit against the four winds and other requirements into Disciplinary provisions. Not one pace reachs the designated position, focusing on in line with reality, pragmatic and effective. After the revision of major changes, major changes in the and modified and needs to grasp severa

39、l key problems (a) adhere to according to regulations governing the party and party with morals in combination, for at the present stage, the leadership of the party members and cadres and Party members in existing main problems of self-discipline, put forward principles, requirements and specificat

40、ions, showing Communists noble moral pursuit, reflected at all times and in all over the world ethics from high from low 5 common requirements. One is closely linked to the self-discipline, removal and no direct relation to the provisions of . the second is adhere to a positive advocate, eight prohi

41、bition 52 are not allowed to about the content of the negative list moved into synchronization amendment . Three is for all the party members, will apply object from the leadership of the party members and cadres to expand to all Party members, fully embodies the comprehensive strictly required. The

42、 fourth is prominent key minority, seize the leadership of the party members and cadres is the key, and put forward higher requirements than the ordinary Party members. Five is to simplify, and strive to achieve concise, easy to understand, easy to remember. The revised is the ruling Party since the

43、 first insists on a positive advocate forAll Party members and the self-discipline norms, moral declaration issued to all members of the party and the National Peoples solemn commitment. criterion of a clean and honest administration consists of 4 parts, 18, more than 3600 words. After the revision

44、of the , a total of eight, 281 words, including lead, specification and Party member cadre clean fingered self-discipline norms, etc. Part 3 members low-cost clean and self-discipline, the main contents can be summarized as four must eight code. Lead part, reiterated on ideal and faith, fundamental

45、purpose, the fine traditions and work style, noble sentiments, such as four must the principle of requirements, strong tone of self-discipline, The higher request for 6 and supervised tenet, the foothold in permanent Bao the partys advanced nature and purity, to reflect the revised standards require

46、ments. Members of self-discipline norms around the party members how to correctly treat and deal with the public and private, cheap and rot thrifty and extravagance bitter music, put forward the four norms. Party leader cadre clean fingered self-discipline norms for the leadership of the party membe

47、rs and cadres of the vital few, around the clean politics, from civil servant of the color, the exercise of power, moral integrity, a good family tradition and other aspects of the leadership of the party members and cadres of the four norms norm norm. The Party members self-discipline norms and part