小学数学教学方法

小学数学教学 方法 快递客服问题件处理详细方法山木方法pdf计算方法pdf华与华方法下载八字理论方法下载 加法交换律 两个加数交换位置，和不变。 a+b=b+a 加法结合律 先把前两个数相加，或者先把后两个数相加，和不变。 a+b+c=a+(b+c) 乘法交换律 两个因数交换位置，积不变。 a×b=b×a 乘法结合律 先乘前两个数，或者先乘后两个数，积不变。 a×b×c=a×(b×c) 乘法分配律 两个数与一个数相乘，可以先把它们与这个数分别相乘，再相加。(a+b)×c=a×c+b×c 义务教育阶段的数学课程，其基本出发点是促进学生全面、持续、和谐地发展。它不仅要考虑数学自身的特点，更应遵循学生学习数学的心理规律，强调从学生已有的生活经验出发，让学生亲身经历将实际问 题 快递公司问题件快递公司问题件货款处理关于圆的周长面积重点题型关于解方程组的题及答案关于南海问题 抽象成数学模型并进行解释与应用的过程，进而使学生获得对数学理解的同时，在思维能力、情感态度与价值观等多方面得到进步和发展。 基本理念: rack, door (gate ... Pressure pipe and the metal structure installation 9.1 main engineering profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); 1、义务教育阶段的数学课程应突出体现基础性、普及性和发展性，是数学教育面向全体学生，实现: ?人人学有价值的数学 ?人人都能获得必需的数学 ?不同的人在数学上得到不同的发展 2、数学能够帮助人们处理数据、进行计算、推理和证明，数学模型可以有效地描述自然现象和社会现象;数学为其他科学提供了语言、思想和方法;数学在提高人的推理能力、抽象能力、想象力和创造力等方面有着独特的作用。 3、学生的数学学习 内容 财务内部控制制度的内容财务内部控制制度的内容人员招聘与配置的内容项目成本控制的内容消防安全演练内容 应当是现实的、有意义的、富有挑战性的，这些内容要有利于学生主动地进行观察、实验、猜测、验证、推理与交流等数学活动。内容的呈现应采用不同的 表 关于同志近三年现实表现材料材料类招标技术评分表图表与交易pdf视力表打印pdf用图表说话 pdf 达方式，以满足多样化的学习需求。有效地数学学习活动不能单纯地依赖模仿与记忆，动手实践、自主探索与合作交流是学生学习数学的重要方式。学生的数学学习活动应当是一个生动活泼的、主动的和富有个性的过程。 4、数学教学活动必须建立在学生的认知发展水平和已有的知识经验基础之上。教师应激发学生的学习积极性，向学生提供充分从事数学活动的机会，帮助他们在自主探索和合作交流的过程中真正理解和掌握基本的数学知识与技能、数学思想和方法，获得广泛的数学活动经验。学生是数学学习的主人，教师是数学学习的组织者、引导者与合作者。 rack, door (gate ... Pressure pipe and the metal structure installation 9.1 main engineering profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); 5、评价的主要目的是为了全面了解学生的数学学习历程，激励学生的学习和改进教师的教学;应建立评价目标多元、评价方法多样的评价体系。对数学学习的评价要关注学生学习的结果，学习的过程，数学学习的水平，他们在数学活动中所表现出来的情感与态度，帮助学生认识自我，建立信心。 6、现代信息技术的发展对数学教育的价值、目标、内容以及学与教的方式产生了重大的影响。 课程内容的学习，强调学生的数学活动，发展学生的数感、符号感、空间观念、统计观念以及应用意识与推理能力 数感主要表现在:理解数的意义;能用多种方法来表示数;能在具体情境中把握数的相对大小关系;能用数来表达和交流信息;能为解决问题而选择适当的算法;能估计运算的结果，并对结果的合理性作出解释 符号感主要表现在:能从具体情境中抽象出数量关系和变化规律，并用符号来表示;理解符号所代表的数量关系和变化规律;会进行符号间的转换;能选择适当的程序和方法解决用符号所表达的问题。 空间观念主要表现在:能由实物的形状想象出几何图形，有几何图形想象出实物的形状，进行几何体与其三视图、展开图之间的转化;能根据条件做出立体模型或画出图形;能从较复杂的图形中分解出基本的图形，并能分析其中的基本元素及其关系;能描述实物或几何图形的运动和变化;能采用适当的方式描述物rack, door (gate ... Pressure pipe and the metal structure installation 9.1 main engineering profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); 体间的位置关系;能运用图形形象地描述问题，利用直观来进行思考。 统计观念:能从统计的角度思考与数据信息有关的问题;能通过收集数据、描述数据、分析数据的过程作出合理的决策，认识到统计对决策的作用;能对数据的来源、处理数据的方法，以及由此得到的结果进行合理的质疑。 四维目标 知识与技能: ?经历将一些实际问题抽象为数与代数问题的过程，掌握数与代数的基础知识和基本技能，并能解决简单的问题 ?经历探究物体与图形的形状、大小、位置关系和变换的过程，掌握空间与图形的基础知识和基本技能，并能解决简单的问题 ?经历提出问题、手机和处理数据、做出决策和预测的过程，掌握统计与概率的基础知识和基本技能，并能解决简单的问题 数学思考: ? 经历运用数学符号和图形描述现实世界的过程，建立初步的数感和符号感，发展抽象思维 ?丰富对现实空间及图形的认识，建立初步的空间观念，发展形象思维 ?经历运用数据描述信息、做出推断的过程，发展统计观念 rack, door (gate ... Pressure pipe and the metal structure installation 9.1 main engineering profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); ?经历观察、实验、猜想、证明等数学活动过程，发展合情推理能力和初步的演绎推理能力，能有条理地、清晰地阐述自己的观点 解决问题: ?初步学会从数学的角度提出问题、理解问题，并能综合运用所学的知识和技能解决问题，发展应用知识 ?形成解决问题的一些基本策略，体验解决问题策略的多样性，发展实践能力与创新精神 ?学会与人合作，并能与他人交流思维的过程和结果 ?初步形成评价与反思的意识 情感与态度 ?能积极参与数学学习活动，对数学有好奇心与求知欲 ?在数学学习活动中获得成功的体验，锻炼克服困难的意志，建立自信心 ?初步认识数学与人类生活的密切联系及对人类历史发展的作用，体验数学活动充满着探索与创造，感受数学的严谨性以及数学结论的确定性 ?形成实事求是的态度以及进行质疑和独立思考的习惯 从广义上来说，小学数学教材包括师生共用的教科书、练习册，以及供教师用的教学指导书、参考书、教学挂图、音像教材、辅助教学软件等教学教材。从狭义来说，小学数学教材就是指小rack, door (gate ... Pressure pipe and the metal structure installation 9.1 main engineering profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); 学数学教科书，亦称课本。 小学数学学习是学生在小学阶段对数学学科的学习，是学生在教师指导下，由于获得数学知识经验而引起的比较持久的行为变化过程，是有目的、有计划、有组织、有步骤的获得数学知识、掌握数学技能、形成数学问题解决能力、发展个性品质的过程。 特点:需感性材料的支持; 需较强抽象思维能力; 人类发现基础上的再发现; 在教师指导下，依据课程和教材进行; 要把握住主要的学习目的 分类:按学习的深度:机械学习、有意义的学习 按学习的方式:接受学习、发现学习 数学认知结构是学生关于数学学习内容的认知结构，即学生头脑中的数学知识结构 小学生数学认知的基本方式: 同化:如果新知识与原有认知结构中的某些知识有着适当的联系，学生就把新知识纳入原有的认知结构中，从而扩大原有的认知结构，这一过程叫做同化。 顺应:如果在原有认知结构中没有适当的知识与新知识相联系，那么就要对原有的数学认知结构进行改组，使之能接纳新的rack, door (gate ... Pressure pipe and the metal structure installation 9.1 main engineering profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); 知识，这一过程称为顺应 小学数学学习过程:数学认知过程，即新的学习内容与学生原有的数学认知结构相互作用，形成新的认知结构的过程。 三个阶段:输入阶段:创设学习情境，提供学习内容，激发学习动机 新旧知识相互作用(同化或顺应)阶段 操作阶段:用新的数学认知结构去解决问题 小学数学教学过程是在教学目标的指引下，以小学数学课程的内容为学习载体，教师组织和引导学生，系统地学习和掌握数学知识，发展和培养数学能力，形成良好的思想品德和个性心理品质的认识和发展相统一的过程。 特征:?是形象思维与逻辑思维、合情推理与论证推理相结合的过程 ?是以发展思维能力为核心的促进学生素质全面发展的过程 ?是以小学数学教材为中介的教师与学生、学生与学 生多边互动的合作过程 小学数学教学的原则:直观性;启发性;循序渐进;归纳与 演绎相结合;理解巩固与探索创新相 结合 rack, door (gate ... Pressure pipe and the metal structure installation 9.1 main engineering profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); 备课全过程 (1)制定教学计划 步骤:?学习课程标?钻研教材?了解学生 内容:?全学期总的目的要求 ?对学生情况作简要分析 ?提出提高教学质量的措施 ?确定本学期的研究课题 ?安排本学期的教学进度 (2)制定单元授课计划 内容:?本单元的教学内容和教学要求 ?教材的重点、难点和关键 ?完成教学任务的主要途径 ?划分课时，确定每节课的主要内容和要求、配备例题和习题 ?安排必要的复习课 (3)制定课时教学计划(写教案) 内容:课题;教学的目的要求;教具、学具等课前准备;教学过程 内容结构表 学段 第一学段(1~3年级) 第二学段(4~6) rack, door (gate ... Pressure pipe and the metal structure installation 9.1 main engineering profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); 数与代数 ?数的认识 ?数的?数的认识 ?数的 运算 运算 ?常见的量 ?探索?式与方程 ?探索 规律 规律 空间与图形 ?图形的认识 ?测量 ?图形的认识 ?测量 ?图形与变换 ?图形?图形与变换 ?图形 与位置 与位置 统计与概率 ?数据统计活动初步 ?简单数据统计过程 ?不确定现象 ?可能性 实践与综合?实践活动 ?综合应用 应用 ppt 关于艾滋病ppt课件精益管理ppt下载地图下载ppt可编辑假如ppt教学课件下载triz基础知识ppt 整数笔算教学 一、内容及编排 加减法: 百以内——万以内——万以上 二上 二上三上 四上 乘除法: 乘数一位数——除数一位数——乘数两位数——除数两位数 三上 三下 三下四上 四上 一、笔算加减法的教学要点 rack, door (gate ... Pressure pipe and the metal structure installation 9.1 main engineering profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); , 由现实背景引出数学问题 , 借助直观使学生明白算理 , 让学生掌握算法 , 告诉学生进位数和退位点的表示 , 注意引导概括法则 , 增加估算内容，培养估算意识和估算策略 例:万以内单元分析 例,:口算,,,,,, 例,:口算 ,,,,,, ,,,,,,,,,, ,,,,,,,,,, 整百整千的口算 整百整千退位减的口算 例,:,,,,,,, 例,:,,,, ,,,, 万以内的不退位减 , ,,, ， ,,, 万以内的减法的验算方法 例,:,,,,,,, 例,:,,,,,,,, 万以内的一次退位减 万以内的隔一位rack, door (gate ... Pressure pipe and the metal structure installation 9.1 main engineering profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); 两次退位减 例,:,,,,,,,, 例,:,,,,,,,,, 连续两位退位减 连续三位退位减 例,:,,,,,,, 例10:,,,,,,,,, 被减数中间有1个零的退位减 被减数中间有2个零的退位减 估算教学新要求 , 让学生体会估算在实际生活中的应用价值，进一步沟通数学 与生活的关系 , 在具体的情景中，选择合适的方法进行估算(策略多样化) , 注重估算的过程，并能对估算结果作出合理的判断 , 逐步发展学生的估算意识和估算能力 小数的认识及加减法教学 一、教学内容与编排 1、小数的初步认识 三下88页 2、小数的意义和性质 四下50页 ?小数的产生和意义?小数的读法?小数的写法?小数的性质1?小数的大小比较?小数的性质2?生活中的小数?求一个小数的近rack, door (gate ... Pressure pipe and the metal structure installation 9.1 main engineering profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); 似值 3、小数的加减法 四下95页 4、小数乘法 五上2页 5、小数除法 五下16页 例1教学设计 师:会用米尺测量我们黑板的长度吗? 生1:测不出准确的结果 师:那怎么办呢 生2:把1米平均分成10份得到1分米再来测量 师:把1米平均分成10份,(多媒体演示)每一份是多长) 师:把1米平均分成10份,每份长是1分米,也就是1/10米,还可以写成0.1米(引导学生读写小数) 师:用1分米去测量剩下的部分结果会怎样? 生:剩下的部分长3分米多一点.也就是0.3米多一点 师:多出来的一点用分米能测量吗?该怎么办? 生3:把1分米再平均分成10份后测量,也就是把1米平均分成100份去测量 师:把1米平均分成100份,每份长是1厘米,也就是1/100米,也就是0.01米.用厘米去测量剩下的部分,情况怎样? 生:剩下的部分长5厘米,就是0.05米 师:如果用小数来表示黑板的长度应该是多少? 生2:黑板的长度大约是4.35米,因为4.35米后面还有剩余,这rack, door (gate ... Pressure pipe and the metal structure installation 9.1 main engineering profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); 个长度是近似数 师:如果把1米平均分成1000份,每一份是多少?用小数如何表示,3份呢? 借用元角分再一次理解小数的意义 师:这是什么?(多媒体出示人民币1元 1角 1分的图案) 如果把一元钱平均分成10份,每份是多少? 如果把一元钱平均100份,每份是多少?3份是多少? 请大家讨论6角5分用小数表示是多少元?为什么? 补充练习 如果把1吨平均分成10份,100份,1000份.这样的1份或几份能用小数表示吗? 比较概括:归纳意义(并突出理解突出整数1的意义,小数的计数单位,进率) 分数的认识及加减法教学 一、教学内容与编排 1、分数的初步认识(三上) 2、分数的意义与性质(五下60) 3、分数的加减法(五下104) 4、分数乘法 5、分数除法 二、教材分析与教学要点 rack, door (gate ... Pressure pipe and the metal structure installation 9.1 main engineering profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); (一) 三上:分数的初步认识 分数的初步认识:认识几分之一 例1、例二、例3 认识几分之几 例四、例五 例六 分数的简单计算: 同分母分数的简单加减法 例一、例二 1减去几分之几 例三 主题图的认识 第六节 量与计量的教学 量与计量的教学内容及编排 长度单位: 一上(比较长短)二上(米\厘米)三上毫米\分米\千米 重量单位:二下(克\千克) 三上 吨 时间单位:一上(时\分\秒) 三下(年月日) 面积单位 三下(平方厘米 平方分米 平方米) 体积单位 六 货币单位 一上下 量与计量的教学要求 让学生认识一些常用的计量单位，形成计量单位的观念 熟悉单位间的进率 能进行简单的测量 教学重点:使学生对计量单位的实际大小有比较明确的观念 教学关键:充分利用直观条件，创造条件让学生进行一些实际观 察、测量等活动(看一看、比一比、量一量、掂一掂)。rack, door (gate ... Pressure pipe and the metal structure installation 9.1 main engineering profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); 使一些抽象的计量单位能被学生具体地感知，从而获 得较为深刻的印象，然后再从计量单位的具体的或物 质的表现形式过渡到抽象的概念 小学数学教学的主要课型: 新授课，练习课，复习课、讲评课、考察课、实践活动课(见附表) rack, door (gate ... Pressure pipe and the metal structure installation 9.1 main engineering profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); 定义 特点 注意点 适用范围 讲解法 指教师通过讲解向学生解释概教师可以系统地、有论据地讲述新的? 教学语言要规范 小学高年级，学生有一 念、说明规则和规律性知识 知识 ? 注意新旧联系，充分利用已有的知识经验 定的听讲和理解能力 ? 运用分析与综合、归纳与演绎等逻辑方法 ? 语言简练易懂、生动有趣 ?注意启发学生积极思维 练习法 在教师指导下，学生通过联系 ?练习目的要明确适当 来巩固知识，形成技能技巧并?练习要有计划地进行 发展智力 ?练习的方式要多样化 ?练习的分量和时间要适当 ?练习的要求应有弹性，做到因材施教 ?在练习中注意发展学生智力 ?注意对练习的检查和指导 演示法 教师通过演示教具或实物来说提供了鲜明的感性材料，有助于理解?要有明确的目的 明或印证所教的知识 抽象的数学知识，发展学生的观察力?课前准备好演示用具 和思维能力 ?演示要与讲解相结合 ?演示后要及时总结归纳，得出规律 启发式谈话法 是通过有目的、有计划的师生通过教师提问，驱动学生思维，激起?谈话前要找准新旧知识的联系点，设计好所提各个年级 谈话进行得一种方法 学生对旧知识的回忆，沟通新旧知识问题 的联系，让学生根据教师提出的问题?谈话时要面向全体学生 思考，从而发现规律，得出结论 ?谈话后要小结 发现法 又称问题教学法 教师不直接把现成的知识传授给学?发挥教师的主导作用 生，而是引导学生利用教师和课本所?发挥课本的作用 提供的材料，亲自去发现应得的结论 ?概念性较强、学生缺少旧知识作基础的内容， 不易运用发现法 ?教学时要让大家有充分的时间思考 ?教学中要鼓励学生提出问题 rack, door (gate ... Pressure pipe and the metal structure installation 9.1 main engineering profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex); rack, door (gate ... Pressure pipe and the metal structure installation 9.1 main engineering profile yongxing river level hydropower station pressure pipe pipeline plane Shang along Ridge is line layout, and slope surface contour close vertical, Guan Po with original ground line changes, used open type Ming tube, single tube joint water way, competent diameter 1.3M, long 931.00m, two root non-symmetric "Bu" type support tube, diameter 0.8M, single root long 8.3M. Competent to establish 12 town Pier, 107 buttress, telescopic section 11. Support Pier spacing 8M, side-sliding bearing. Town pier for the closed-end structure of gravity, base surface into bedrock, pipe excavation slope 1:0.75 with M5 grouted rubble slope protection, 0.3M, bottom side sewer, 0.25m wide, deep 0.3m,M5 grouted rubble masonry, set maintenance step ladder on the left side, 1.0M wide. Yongxinghe-? hydropower station penstock pipes arranged along the ridge line on the plane, and nearly vertical slope contour lines, Guan Po changes with the original ground line, with shallow backfill-pipe, single-pipe water supply, the competent 1.4m, long 1063.506m, two asymmetric "y" pipe, diameter 0.8M, single 10m. Competent to establish 12 town Pier, 8 expansion joint. Town pier for the closed-end structure of gravity, placed on soft rock base surface, pipe concrete C20 on a pedestal. Pipe trench excavation slope 1:0.75, after the installation of steel tube, compacted gravel backfill material to the surface, and 1:100 slope drainage to gutters. Gutter width 0.5M depth 0.5m,M5 grouted rubble masonry. 9.2 main engineering content this standard pressure pipe and the metal structure installation part main including Yunnan province tengchong County yongxing River primary and secondary hydropower station in the of pressure pipe and the power station metal structure, which level power station pressure pipe total about 562t (containing annex);