浅谈小学数学课堂导入技能

浅谈 小学 小学生如何制作手抄报课件柳垭小学关于三违自查自纠报告小学英语获奖优质说课课件小学足球课教案全集小学语文新课程标准测试题 数学课堂导入技能 摘 要:导入技能是课堂教学的起始环节所采用的一种教学技能，它能使学生很快进入课堂教学状态。本文阐述了在课堂教学过程中导入的作用，总结了课堂导入技能的定义，并根据自己的教学经验，通过实例来介绍提高小学数学教师课堂导入技能的若干心得与体会。 关键词:数学;导入技能;策略 中图分类号:g622 文献标识码:a 文章编号:1003-2851(2012)05-0142-01 俗话说:“良好的开端是成功的一半”。把这句话引用到数学课中的话，那么课前导入正是扮演着这种角色。对于学生来说，导入是课间十分钟和新课知识之间的“桥梁”，能引起学生注意，激发学生学习兴趣，使学生迅速进入新课学习状态的活动方式;对于教师来说，导入是教师在课堂教学起始阶段采用各种教学媒体和教学方式，向学生引入新知识的过程，是课堂教学艺术的重要组成部分，也是课堂教学的第一关。 一、课堂导入要简单明了 现代教育的突出特征是讲究效益和效率，要求教师要有良好的教学效能感。课堂导入起到的是过渡的作用，重点是导入后的教学，所以上课教师力求要做到简单，通过简单的故事、游戏、实验、问题导入新课。也就是说教师应在短时间内使学生迅速地集中注意力，激发求知欲望和思维活动，引起学习新知识的兴趣，全身心地of door and window boxes, the jambs set aside in advance to check geometry meets the design requirements. Installation of door and window frames would preferably be conducted upon completion of the construction of the main structure, door and window door installation should be at the end of the indoor and outdoor decoration, so as to avoid civil installation damage to each other. Popup +500mm elevations in advance, as door and window level control line. Exterior door and window installation will pop up on the walls a uniform elevation control line and vertical line from bottom to top, elevation and vertical deviation is controlled with doors and Windows. Check the embedded specification of the number, location and planting method, aluminum window has no damage, deformation, repair, correction or replacement should be carried out promptly. Check for corrosion materials, sealing materials and cleaning materials with the design requirements and specifications. 2, installation procedure 1) door and window frame installation according to the location of the doors and Windows installed wire, when doors and Windows opening to the edge of the door and window frames size is greater than 15mm, first with cement mortar plastering the wall size on all sides from the door and window frames edge 15mm position and the surface is rough. If the thickness is greater than 30mm, should be of fine stone concrete formwork for concrete pouring. After the base strength. Door frame mounting hole place to wedge 投入学习，做到心动、脑思、口说、手写;同时也能使学生明确学习目标和教学要求，并有意地建立起新旧知识之间的联系，从心理和知识上进入听课的良好准备状态，进而为教学的顺利进行创造有利条件。 案例 全员育人导师制案例信息技术应用案例心得信息技术教学案例综合实践活动案例我余额宝案例 : 四年级 梯形的认识 师:网上找来一些图片，同学们看这些图片都有一个非常相似的地方，可以叫什么, 生:梯形。(板书:梯形) 师:为什么, 生:„„ 师:你们想认识梯形的什么呢, 生:定义、特点、作用、画法„„ 生活中象梯形这样的图形很多，学生在上新课之前，已经有了一定的认识，所以教师的导入可以非常简单，了了几句话就把学生的思绪引到梯形中来，通过问题你想认识梯形的什么迅速激起学生想学习梯形有关知识的兴趣，学生的思维立刻引到接下去的新课学习中。 课堂导入不能过于复杂。有些教师担心导人缺乏新意，喜欢找些与上课内容没有多大关联的事物导入新课，转弯抹角，导入的内容很多，看似形式新颖，但是与本节课联系不大，作用不突出，这样往往导入部分兜了很大一个圈子才把学生的思绪拉过来，我们可以想象这种做法虽然也起到了导入的作用，但时间和精力花费太大，of door and window boxes, the jambs set aside in advance to check geometry meets the design requirements. Installation of door and window frames would preferably be conducted upon completion of the construction of the main structure, door and window door installation should be at the end of the indoor and outdoor decoration, so as to avoid civil installation damage to each other. Popup +500mm elevations in advance, as door and window level control line. Exterior door and window installation will pop up on the walls a uniform elevation control line and vertical line from bottom to top, elevation and vertical deviation is controlled with doors and Windows. Check the embedded specification of the number, location and planting method, aluminum window has no damage, deformation, repair, correction or replacement should be carried out promptly. Check for corrosion materials, sealing materials and cleaning materials with the design requirements and specifications. 2, installation procedure 1) door and window frame installation according to the location of the doors and Windows installed wire, when doors and Windows opening to the edge of the door and window frames size is greater than 15mm, first with cement mortar plastering the wall size on all sides from the door and window frames edge 15mm position and the surface is rough. If the thickness is greater than 30mm, should be of fine stone concrete formwork for concrete pouring. After the base strength. Door frame mounting hole place to wedge 与导入本身的含义相违背。 二、课堂导入要有实在的效果 课堂导入要有实在效果，能给这节课起到助推器的作用，不能因为情节吸引人就不加选择的拿来作为课堂导入。那么对于我们教师来说选择的课堂导入就要有针对性、目的性。导入的问题过于浅白，导人的内容过于平淡、大众化，甚至忽视导入的作用，不易诱发学生产生新问题，难以促成学生进行深度思考和探究性学习，都会影响导入的效果。 案例2:三年级 面积和面积单位 在小小玻璃店发生了这样一个故事:丽丽和方方去请小熊店长给自己心爱的相框加上玻璃，便于保存(课件动态，呈现小熊店长为两个大小为6分米×2分米，3分米×4分米的长方形相框安装玻璃的情景)安装好了，店长让他们付同样多的钱，可二人认为:两块大小不一样的玻璃收同样多的钱不合理，属于乱收费。店长建议:了解一些有关面积的知识，自然就明白了。 短短的一个故事，根据学生的年龄特点，教师就 设计 领导形象设计圆作业设计ao工艺污水处理厂设计附属工程施工组织设计清扫机器人结构设计 一个买玻璃的场景，通过收费时产生的矛盾，引起学生的注意，从而使学生带着疑问进行下一阶段的学习。恰当设置生动的情境，把面积教学蕴涵在情境中作为一个问题提出，一方面有效激发学生兴趣，同时又使学生体验了学习面积的实际意义。 三、课堂导入要自然 of door and window boxes, the jambs set aside in advance to check geometry meets the design requirements. Installation of door and window frames would preferably be conducted upon completion of the construction of the main structure, door and window door installation should be at the end of the indoor and outdoor decoration, so as to avoid civil installation damage to each other. Popup +500mm elevations in advance, as door and window level control line. Exterior door and window installation will pop up on the walls a uniform elevation control line and vertical line from bottom to top, elevation and vertical deviation is controlled with doors and Windows. Check the embedded specification of the number, location and planting method, aluminum window has no damage, deformation, repair, correction or replacement should be carried out promptly. Check for corrosion materials, sealing materials and cleaning materials with the design requirements and specifications. 2, installation procedure 1) door and window frame installation according to the location of the doors and Windows installed wire, when doors and Windows opening to the edge of the door and window frames size is greater than 15mm, first with cement mortar plastering the wall size on all sides from the door and window frames edge 15mm position and the surface is rough. If the thickness is greater than 30mm, should be of fine stone concrete formwork for concrete pouring. After the base strength. Door frame mounting hole place to wedge 教师在教学中起着“导演”的作用，通过与新课有密切联系的某件事物或事情从而自然地进入到新的知识点的学习过程当中。当然这个过程最重要的是给人感觉自然、平滑。自然的导入新课能有效地激发起学生的求知欲，犹如水到渠成一般。生搬硬套的话，学生的思维就很难按照预设的轨道发展，容易产生分歧，造成不必要的错误理解和误区，会直接影响整节课的效果。 案例3:四年级 三角形内角和 师:同学们，我们已经学过了用量角器来测量角的度数，请同学们来测量三角形纸片上的三个角的度数。 (学生同桌合作) 师:接下来我们做一个游戏。你们说出你测量的三角形纸片上的二个角的度数，老师便可以猜出第三个角的度数，相信吗, (师生活动) 师:同学们，其实你们也可以跟老师一样棒，只要好好学习今天的知识就行了。今天我们来学习三角形内角和。 通过教师猜角的度数的游戏，使学生对三角形三个角的度数产生学习的好奇心，自然平滑地引出了新授知识——三角形内角和，创设的情境引起学生思维火花的碰撞，激发了学生更进一步学习三角形内角和的兴趣，为后面学习新知提供了学习资源。 教学的艺术不在于传授本领，而在于激励、唤醒、鼓舞，教师要成为学生学习中的指引者。教学中教师要根据教材及学生的特点，灵活掌握导入技能，打好开头第一仗，课后及时交流反馈，同时教of door and window boxes, the jambs set aside in advance to check geometry meets the design requirements. Installation of door and window frames would preferably be conducted upon completion of the construction of the main structure, door and window door installation should be at the end of the indoor and outdoor decoration, so as to avoid civil installation damage to each other. Popup +500mm elevations in advance, as door and window level control line. Exterior door and window installation will pop up on the walls a uniform elevation control line and vertical line from bottom to top, elevation and vertical deviation is controlled with doors and Windows. Check the embedded specification of the number, location and planting method, aluminum window has no damage, deformation, repair, correction or replacement should be carried out promptly. Check for corrosion materials, sealing materials and cleaning materials with the design requirements and specifications. 2, installation procedure 1) door and window frame installation according to the location of the doors and Windows installed wire, when doors and Windows opening to the edge of the door and window frames size is greater than 15mm, first with cement mortar plastering the wall size on all sides from the door and window frames edge 15mm position and the surface is rough. If the thickness is greater than 30mm, should be of fine stone concrete formwork for concrete pouring. After the base strength. Door frame mounting hole place to wedge 师要根据自己的特长，精心设计导入语，使课堂教学更加精彩。 参考文献 [1]龙敏倍.浅析中学数学教学的课堂引入 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 [j].数学教学学报 1994.2 [2]涂荣豹.数学教学认识论[m].南京师范大学出版社，2004 [3]孔凡哲.新课程典型案型与点评[m].东北师范大学出版社，2003.7 [4]郭子其，王文娟.新课程课堂导入三 原则 组织架构调整原则组织架构设计原则组织架构设置原则财政预算编制原则问卷调查设计原则 [j].教育导报，2004.9 of door and window boxes, the jambs set aside in advance to check geometry meets the design requirements. Installation of door and window frames would preferably be conducted upon completion of the construction of the main structure, door and window door installation should be at the end of the indoor and outdoor decoration, so as to avoid civil installation damage to each other. Popup +500mm elevations in advance, as door and window level control line. Exterior door and window installation will pop up on the walls a uniform elevation control line and vertical line from bottom to top, elevation and vertical deviation is controlled with doors and Windows. Check the embedded specification of the number, location and planting method, aluminum window has no damage, deformation, repair, correction or replacement should be carried out promptly. Check for corrosion materials, sealing materials and cleaning materials with the design requirements and specifications. 2, installation procedure 1) door and window frame installation according to the location of the doors and Windows installed wire, when doors and Windows opening to the edge of the door and window frames size is greater than 15mm, first with cement mortar plastering the wall size on all sides from the door and window frames edge 15mm position and the surface is rough. If the thickness is greater than 30mm, should be of fine stone concrete formwork for concrete pouring. After the base strength. Door frame mounting hole place to wedge