2022年新课标人教版小学三年级下册数学第七、八单元集体备课教学案表格式

1、many other preous col d water fish. mineral resources, has proved many of the gold ore body, high grade, large reserves, reserves of more than 170 million tons of lignite, iron, vanadium and titanium magnetite reserves proven 6 million cubi c meters, 40 million tons of quartz sand deposit reserves,

2、the rare. ) from the short plate, woods continued industry weak, support is not strong, espe cially inadequate for proce ssi ng, there are no resources to make good products, marketing is not enough, there are no good products sell for a good price. livelihood weakness, my district is locate d in t

3、he border area, the climate is cold, for many years of the masses of workers have a hard life, and complete the building of forest societys weaknesses are mainly concentrated in the area of peoples livelihood, especially in terms of poverty, the task is still very arduous. from the perspective of sh

4、ort-term capital, district financial situation at present tense, some financial de bts to repay, is basically living money, no money for developme nt, transformation where did the money come from still outstanding. from the perspe ctive of talent short boar d, my talent shortage, low overall qualit

5、y, irrational struct ure, weak overseas talents into local serious brain -drain, especially hig h-e nd talents badly, has become the development of controlkey issues. if these short board neither avoid nor overcome, not padded, transformation and development cannot be achieved in forest areas. secon

6、d, t hink calmly, calmly. a local economic developme nt, strengths and weaknesses are dynamic and re ciprocal transformation, there is no absolute advantages and disadvantages, advantages and disadvantages of nothing, as t he time, place, and cha nges in external conditions, advantages could become

7、disadvantages, disadvantages may also be to your advantage. for example, my good ecol ogical environment, land development later, is the nation s most dare ri ng of green and organic food, but the se years are basically kind of traditional crops such as soybean, wheat, especially the heavy use of ch

8、emical fertilizers and pesticides, the ecol ogical advantages of agricultural development are being degraded. for example, ice and snow were our weak nesses, sought after now, with visitors to the snow and ice in the s outh, but the development of eco-tourism of gold and silver. for example, our reg

9、i on is located in the border area, has been our weakness today as the country along the way, and long jiang silk road building farther forward, but is expecte d to be ope ned t o the russian frontier. (from xxs situation, while our railways, ports a nd other proje cts has not fought for, but with t

10、he mongolia-russia economic corridors 65 policy and stea dy growth benefits of further releases, provide opportunities for our projects, paving projects in the early county, in the thirteen-fiv e period will very likely get a specific implementation). practice has proved that adversity is short or l

11、onghort and make up for long. long and short, rational thought, keeping the force, we must deal with it calmly, neither keep advantages do not, missed opportunities, also faced short omissions, loss of confidence , we must correctly understand and handle the relationshi p between l ong and short, ef

12、fective enhancement initiative, to better promote the transformation and development. three local conditions, home opathy for. foster strengths and circumvent weaknesses, short swagger grams, yangcha ngbuduan, have in common is that swagger, and avoid, g, fill each have a logical relationship. we mu

13、st adhere to local conditions and homeopathy for, full com pliance with the rule of law, market economy and the laws of nature, all time, place and conditions for the transfer, targeted preci sion application policy. us weaknesses, is to play to strengths and avoid weaknesses. like, in industry deve

14、lopment shang, prefectural proposed devel opment six big industry, the county district council must to relies on resources advantage, find associate industry positioni ng, put local most has competition advantage, and most has devel opment potential of industry first do up, never can tanda qiuqua n,

15、 and bl ind follow, and make with quality of competition, for those obviously not for local development of industry to strongly avoid, cannot shang of project never can took hard on my forehead. we talk about swagger g short was to build strengths t o overcome weaknesses. for example, on t he adjust

16、ment of agricultural planting structure, i just a little, short frost-free period and low temperatur, with traditionally grown soy beans, wheat and other crops in low yields, poor quality, there is no advantage, it difficult for farmers to achieve sustainable incomes. only guide the pe asants to do

17、organic, high-end, really good kind of good products, cold region and black gle be ecol ogical a dvantages and advantages play out, my area of agricultural developme nt in order to find a way. us yangchangbudua n, is to have to swallow some of the effects of transformation and development of the sho

18、rt board. (specific to the xx, we seize the korean bla ck railway into the province, along the way implementation opportunities, promoting the construction of railway projects al ong the river, in the thirteen-five plan promoting the proje ct, under construction. pay special attention to provincial

19、highway xx to nenjia ng road tender call to sophisticated shops, the national highway from dandong to altay xx to 18 stations and commuter airport renovation and expansion work, promote xx infrastructure in hong kong, planne d opening water transport channel, and construct land, water and air transp

20、ortation networks). homeopathy for as long as we are in line with local conditi ons, in the play long fuss, in addressing the short work on weaknesses, short swagger grams, yangcha ngbuduan, will be able to achieve the development goals. second, focus on economic construction as the center, pushing

21、forward forest transition xi general secretary小学集体学案（备课）用表编写时间： 201 年月日教学课题第七单元小数的初步认识学案编写者教学用课时 6 学案使用者第周星期用教学目标课（章节）教学目标1使学生能结合具体内容初步了解小数的含义，会认、读、写小数部分不超过两位的小数。2使学生能结合具体内容比较一位、两位小数的大小。3使学生会计算一位小数的加减法。教学重点与难点会认、读、写小数部分不超过两位的小数。使学生能结合具体内容比较一位、两位小数的大小。教学准备与手段多媒体课件集体备课时间年级科第周星期集体备课共性意见1调动学生的生活经历和已有知识，

22、促进知识经验的迁移。小学生的很多生活经验，以及他们前面所学的整数及其加减法的有关知识，都能在本单元的学习中发挥积极的迁移作用。教师应充分利用这些有利条件，激活学生的相关生活经验和相关知识基础促进学习的正迁移，使学生在学会的同时，形成会学的能力。2把握好小数初步认识的学习要求。作为小数的初步认识，其教学要求应当注意把握三点。一是本单元不要求离开现实背景和具体的量，抽象地讨论小数。二是小数的认、读、写，限于小数部分不超过两位的小数。三是简单的小数加减法原则上限于一位小数，并且结合元、角进行计算。3放手让学生探究简单的小数加减法的算法。如前所述，简单的小数加减法是一个比较适合学生自行探究的学习内容。

23、教师对学生的学习潜能要有充分的估计。教学时，应尽可能地放手让学生提出问题，尝试计算，验证答案，并引导他们自己总结计算要点。从而逐步培养和提高学生的数学学习能力。精品学习资料 可选择p d f - - - - - - - - - - - - - - 第 1 页，共 18 页 - - - - - - - - -第一课时： p88-p89。教学过程教学环节教师活动学生活动使用者再创及反思记录一、复习铺垫：二、新课：教学目标：1、使学生初步掌握十分之几、百分之几的分数都可以改写成零点几的形式。2、使学生正确掌握小数的读、写法。3、使学生了解小数各部分的名称。重点：使学生正确理解小数的含义。难点：以元为

24、单位的小数与几元几 角几分的相互改写； 以米为单位的小数与米、分米、厘米的相互改写。教学过程：一、复习铺垫：二、新课：1、创设情景认识小数出示主题图问题：（1） 从这幅图中你发现了什么？（2） 知道了什么？与同桌的小伙伴说一说它表示什么意思？学生汇报，老师板书（略）归纳概括像5.98、2.03、0.65、4.82、2.8、6.7 这样的数叫小数。 “. ”叫做小数点。动手填一填 （p88中间表格）2、探究小数的读法你们会读这些小数吗？试读一读。教师加以引导小数的正学生正确掌握小数的读、写法。使学生了解小数各部分的名称。知道了什么？与同桌的小伙伴说一说它表示什么意思？学生汇报，精品学习资料 可选

25、择p d f - - - - - - - - - - - - - - 第 2 页，共 18 页 - - - - - - - - -many other preous col d water fish. mineral resources, has proved many of the gold ore body, high grade, large reserves, reserves of more than 170 million tons of lignite, iron, vanadium and titanium magnetite reserves proven 6 million

26、 cubi c meters, 40 million tons of quartz sand deposit reserves, the rare. ) from the short plate, woods continued industry weak, support is not strong, espe cially inadequate for proce ssi ng, there are no resources to make good products, marketing is not enough, there are no good products sell for

27、 a good price. livelihood weakness, my district is locate d in t he border area, the climate is cold, for many years of the masses of workers have a hard life, and complete the building of forest societys weaknesses are mainly concentrated in the area of peoples livelihood, especially in terms of po

28、verty, the task is still very arduous. from the perspective of short-term capital, district financial situation at present tense, some financial de bts to repay, is basically living money, no money for developme nt, transformation where did the money come from still outstanding. from the perspe ctiv

29、e of talent short board, my talent shortage, low overall qualit y, irrational struct ure, weak overseas talents into local serious brain -drain, especially hig h-e nd talents badly, has become the development of controlkey issues. if these short board neither avoid nor overcome, not padded, transfor

30、mation and development cannot be achieved in forest areas. second, t hink calmly, calmly. a local economic developme nt, strengths and weaknesses are dynamic and re ciprocal transformation, there is no absolute advantages and disadvantages, advantages and disadva ntages of nothing, as t he time, pla

31、ce, and changes in external conditions, advantages could become disadvantages, disadvantages may also be to your advantage. for example, my good ecol ogical environment, land development later, is the nation s most dare ring of green and organic food, but the se years are basically kind of tradition

32、al crops such as soybean, wheat, especially the heavy use of chemical fertilizers and pesticides, the ecol ogical advantages of agricultural development are being degraded. for example, ice and snow were our weak nesses, sought after now, with visitors to the snow and ice in the s outh, but the deve

33、lopment of eco-tourism of gold and silver. for example, our regi on is located in the border area, has been our weakness today as the country along the way, and long jiang silk road building farther forward, but is expecte d to be ope ned t o the russian frontier. (from xxs situation, while our rail

34、ways, ports a nd other proje cts has not fought for, but with the mongolia-russia economic corridors 65 policy and steady growth benefits of further releases, provide opportunities for our projects, paving projects in the early county, in the thirteen-fiv e period will very likely get a specific imp

35、lementation). practice has proved that adversity is short or longhort and make up for long. long and short, rational thought, keeping the force, we must deal with it calmly, neither keep advantages do not, missed opportunities, also faced short omissions, loss of confidence , we must corre ctly unde

36、rstand and handle the relationshi p between l ong and short, effective enhancement initiative, to better promote the transformaton and development. three local conditions, home opathy for. foster strengths and circumvent weaknesses, short swagger grams, yangcha ngbuduan, have in common is that swagg

37、er, and avoid, g, fill each have a logical relationship. we must adhere to local conditions and homeopathy for, full com pliance with the rule of law, market economy and the laws of nature, all time, place and conditions for the transfer, targeted preci sion application policy. us weaknesses, is to

38、play to strengths and avoid weaknesses. lik e, in i ndustry development shang, prefectural proposed devel opment six big industry, the county district council must to relies on resources advantage, find associate industry positioni ng, put local most has competition advantage, and most has devel opm

39、ent potential of industry first do up, never can tanda qiuqua n, and bl ind follow, and make with quality of competition, for those obviously not for local development of industry to strongly avoid, cannot shang of project never can took hard on my forehead. we talk about swagger g short was to buil

40、d strengths t o overcome weaknesses. for example, on t he adjustment of agricultural planting structure, i just a little, short frost-free period and low temperatur, with traditionally grown soy beans, wheat and other crops in low yields, poor quality, there is no advantage, it difficult for farmers

41、 to achieve sustainable incomes. only guide the peasants to do organic, high-end, really good kind of good products, cold region and black gle be ecol ogical a dvantages and advantages play out, my area of agricultural developme nt in order to find a way. us yangchangbudua n, is to have to swallow s

42、ome of the effects of transformation and development of the short board. (specific to the xx, we seize the korean bla ck railway into the province, along the way implementation opportunities, promoting the construction of railway projects al ong the river, in the thirteen-five plan promoting the pro

43、je ct, under construction. pay special attention to provincial highway xx to nenjia ng road tender call to sophisticated shops, the national highway from dandong to altay xx to 18 stations and commuter airport renovation and expansion work, promote xx infrastructure in hong kong, planne d opening wa

44、ter transport channel, and construct land, water and air transportation networks). homeopathy for as long as we are in line with local conditi ons, in the play long fuss, in addressing the short work on weaknesses, short swagger grams, yangcha ngbuduan, will be able to achieve the development goals.

45、 second, focus on economic construction as the center, pushing forward forest transition xi general secretary第二课时：小数的大小比较三、巩固确读法。你 们 还 在 哪 里 见 过 小数？探究小数的写法（教学p89例一）小结归总：（1） 这节课你们认识了什么？（2）今天认识的小数与整数比较有什么不同？同桌同学互相说。三、巩固1、出示数字卡片 （整数、分数、小数）2、把卡片上的小数打上钩。3、读出小数4、说一说你是怎么读小数的？5、老师口述小数，学生听写。6、 完成 p89做一做 1、 2

46、、题。你们还在哪里见过小数？探究小数的写法把卡片上的小数打上钩。读出小数说一说你是怎么读小数的？教学过程教学环节教师活动学生活动使用者再创及反思记录一、复习并导入新课教学目标：1、 使学生初步会比较小数的大小。2、通过有小数的大小比较，加深学生对小数含义的理解， 加强整数和小数的联系，分数和小数的联系。重点：会比较小数的大小。教学过程：一、复习并导入新课。会比较小数的大小。精品学习资料 可选择p d f - - - - - - - - - - - - - - 第 3 页，共 18 页 - - - - - - - - -二、新课。提问：比较整数大小的方法是怎样的？同分母分数的大小比较是怎样？老师

47、小结：突出整数比较大小时，要从高位比起，把相同数位上的数加以比较，同分母的大小比较，分子大的分数比较大，把相同分数单位分数的分子进行比较。口算比赛： （用手势表示 “大于号” 、 “小于号”）16 12 28 38 86 844/5 3/5 7/12 5/12 16/20 9/20 导入新课：前一阶段，我已经学会了比较整数大小和比较分数大小的方法，今天我们先学习“小数的大小比较” 。 （板书课题）二、新课。1、小组探究学习： p90 例 2 2、 补充例题（图略）请看图，说出左图和右图中有几个几分之一，用小数怎样表示？这两个小数哪个大？为什么？要求：从小数的含义上理解得出。0.4 ” 。2.5

48、 1.8 3、学生试练。2.5 2.3 8.6 8.9 0.23 0.53 3.22 1.28 使学生明确两数的整数部分，个位上都相同，就要再看小数部分哪个大。4、 教师简单小结比较小数的方法。比较小数的大小方法和过去学过的整数的比较方法相同， 比较大小都从高位比起，把相同数位上的数进行比较。有整数部分的小数，要先比整数部分，再比较小数部分；整数部分相同，再看小数部分哪个大。三、练习：p90下边的 “ 做一做 ”补充练习，在里填上合适的小数。 四、全课总结（略）。使学生明确两数的整数部分，个位上都相同， 就要再看小数部分哪个大。比较小数的大小方法和过去学过的整数的比较方法相同，比较大小都从高位

49、比起， 把相同数位上的数进行比较。有整数部分的小数， 要先比整数部分，再比较小数部分；整数部分相同， 再看小数部分哪个大。教学过程教学环节教师活动学生活动使用者再创及反思记录教学目标：1、使学生初步掌握小数精品学习资料 可选择p d f - - - - - - - - - - - - - - 第 5 页，共 18 页 - - - - - - - - -一 、复习导入新课。二、新课：加法的计算方法。2、通过对比小数加法与整数加法的相同点以加深学生对小数加法的理解。重点：掌握小数的加法计算方法教学过程：一、复习导入新课。列竖式计算下面各题，并说一说做整数加法时要注意什么？74+28 51+62 （

50、小结时，突出“相同数位对齐，从个位加起。 ” ）二、新课：1、设计购物情景图。 学习小数的加法计算。从画面中你知道了什么信息？你想购买哪些商品？它们价格分别是多少元？你最少选择购买两种商品，请你计算一下你一共用去了多少元钱？计算结束之后说给同桌的小伙伴，你自己是怎样计算的？（给出活动时间）学生活动后汇报归总。 得出小数加法的计算方法。（教师可以板书）教师补充讲清，直接用小数计算的书写格式。 （强调格式）2、试一试（用竖式计算下面各题）4.5 + 2.3 0.9 + 6.2 14.1 + 3.6 2.08 + 0.49 3、师生小结，计算小数加法时要注意什么？形成文字。计算小数加法时，要使相同数

51、位对齐，也就是要把小数点对齐，从低位加起，加得的结果要对齐加数的小数点，点上小数点。学生初步掌握小数加法的计算方法。列竖式计算下面各题，并说一说做整数加法时要注意什么？计算结束之后说给同桌的小伙伴，你自己是怎样计算的？（给出活动时间）学生活动后汇报归总。 得出小数加法的计算方法生小结，计算小数加法时要注意什么精品学习资料 可选择p d f - - - - - - - - - - - - - - 第 6 页，共 18 页 - - - - - - - - -many other preous col d water fish. mineral resources, has proved many

52、of the gold ore body, high grade, large reserves, reserves of more than 170 million tons of lignite, iron, vanadium and titanium magnetite reserves proven 6 million cubi c meters, 40 million tons of quartz sand deposit reserves, the rare. ) from the short plate, woods continued industry weak, suppor

53、t is not strong, espe cially inadequate for proce ssi ng, there are no resources to make good products, marketing is not enough, there are no good products sell for a good price. livelihood weakness, my district is locate d in t he border area, the climate is cold, for many years of the masses of wo

54、rkers have a hard life, and complete the building of forest societys weaknesses are mainly concentrated in the area of peoples livelihood, especially in terms of poverty, the task is still very arduous. from the perspective of short-term capital, district financial situation at present tense, some f

55、inancial de bts to repay, is basically living money, no money for developme nt, transformation where did the money come from still outstanding. from the perspe ctive of talent short board, my talent shortage, low overall qualit y, irrational struct ure, weak overseas talents into local serious brain

56、 -drain, especially hig h-e nd talents badly, has become the development of controlkey issues. if these short board neither avoid nor overcome, not padded, transformation and development cannot be achieved in forest areas. second, t hink calmly, calmly. a local economic developme nt, strengths and w

57、eaknesses are dynamic and re ciprocal transformation, there is no absolute advantages and disadvantages, advantages and disadva ntages of nothing, as t he time, place, and changes in external conditions, advantages could become disadvantages, disadvantages may also be to your advantage. for example,

58、 my good ecol ogical environment, land development later, is the nation s most dare ring of green and organic food, but the se years are basically kind of traditional crops such as soybean, wheat, especially the heavy use of chemical fertilizers and pesticides, the ecol ogical advantages of agricult

59、ural development are being degraded. for example, ice and snow were our weak nesses, sought after now, with visitors to the snow and ice in the s outh, but the development of eco-tourism of gold and silver. for example, our regi on is located in the border area, has been our weakness today as the co

60、untry along the way, and long jiang silk road building farther forward, but is expecte d to be ope ned t o the russian frontier. (from xxs situation, while our railways, ports a nd other proje cts has not fought for, but with the mongolia-russia economic corridors 65 policy and steady growth benefit