课 题.d树叶贴画
课题：树叶的联想
教学目标：
1、认识常见的叶子，发现叶子的形状、大小、颜色各有不同。2、能大胆想象利用不同的叶子拼贴树叶画。3、培养学生想象能力和动手创造能力。教学重点与难点:
根据树叶的形状和颜色，组合成适宜的树叶粘贴画。活动准备:
1、在平时散步时已认识多种不同形状的树叶2、收集大小不一、形状和颜色各异的树叶3、事先请同学们收集一些树叶活动流程：介绍树叶粘贴的方法
欣赏各种树叶欣赏范画介绍树叶粘贴的方法学生创意学生作品欣赏一、欣赏各种树叶
1、知道它们有大有小，形状不一，可以组成有趣的图案2、请同学们看看老师展示的这些叶子像什么呢？”（观察讨论）教师小结：它们形状都是不一样的，有大的，有小的，有长的，短的。二、欣赏范画
1、你们想看吗？老师把树叶放在一起变成了一幅什么画？（金鱼）观察金鱼的身体是用什么形状组合的？（椭圆形叶子）那它的尾巴又是什么样子的叶子变出来的呢？（有点像花的叶子变出来的）
2、再让学生看看这是什么？（出示孔雀）让学生欣赏
教师小结：原来每一片树叶和不同的树叶组合就会变出不同的图形。
三、介绍树叶粘贴的方法
摆的时候要先想好它的位置，不要挤在一起，这样才好看！物体拼好后，再一片片地在树叶的背后均匀地抹上浆糊，贴在画纸上，再用手轻轻压一压。四、创意
教师边巡视，并对个别学生适当指导，重点帮助正确地挑选树叶的形状拼图来布局画面。五、作品欣赏
请完成的同学把图画贴在黑板上，互相看一看，说你最喜欢哪幅画？为什么喜欢它？
教师可以挑出几幅好的画稍作讲评。“这几幅画呀，构图较好，画面很满，添加的装饰不多，拼的很像。（最主要的是树叶的形状找的好）
范画：
扩展阅读：树叶贴画
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树叶贴画（美术资源的开发课例）
《树叶贴画》是一堂典型的乡土课程，就地取材，利用乡村随处可见的树叶，根据其丰富多彩的颜色、形态，引导启发学生的联想思维和创造能力。该课非常贴近学生的实际生活，亲切质朴的乡土内容、通过轻松活跃的课堂气氛、合作探究的学习方式大大激发了学生们的学习兴趣，能够使学生体会到了“生活中不是缺少美，而是缺少发现”的美学理念，达到了很教学对象:三年级教学时间：一课时
《美术课程标准》指出“尽可能运用自然环境（如自然景观、自然材料等）以及校园和社会生活中的资源（如活动、事件和环境等）进行美术教学。”农村小学的美术课，最令教师患难的就是学生的学具材料很齐全。因此，我们只好因地制宜、就地取材来拓宽美术课程资源，选择本地容易收集的各种树叶作为材料，进行树叶贴画、树叶拓印、树叶添画、树叶剪纸、树叶书签的系列活动，让学生建立“变废为宝”的思想，体会运用自然材料创作的乐趣，培养学生的审美情趣与创造能力。本课为“树叶画”系列课程中的第一课，通过简单的树叶拼摆造型，激发学生兴趣，为以后的树叶画打下基础。教学目标：情感、态度与价值观：感受自然材质树叶独特的美，产生利用废旧物品、自然材料进行创作的兴趣。
知识与技能：提升学生对造型艺术语言的广义认识，训练学生概括、夸张的表现能力，通过联想、想象开启学生的创新思维。
过程与方法:通过选叶、拼摆、粘贴训练学生的动手能力，通过合作拼贴培养学生的合作意识，养成爱整洁、讲卫生的行为习惯。教学重点：
1.材料的选择运用；2.树叶贴画的技巧。教学难点：
形象特征表现、创新。教学准备：
教师：选择大小不同、形状各异、颜色丰富的树叶，压平、凉干、装与6个纸盒内（供6个小组学生使用）；树叶画作品若干，树叶范画2幅；奖品（树叶书签）若干。
学生:糨糊、卡纸教学过程：
（一）激趣导入、引出课题
教师提问：同学们喜欢画画吗？请大家说说什么叫做画（板书）？
教师对学生的回答给予一定的肯定（态度、情感方面），暂不判断正误。出示一幅树叶粘贴画作品：这是不是画？这是什么做成的画？板书课题：树叶贴画。（二）树叶欣赏
教师给同学们带来了礼物，请各位小组长打开桌上的纸盒，让每位学生拿上一片树叶，仔细观察、欣赏、联想、讨论。
请各组派代表说说自己的树叶的形状、色彩与纹理。教师小结：
树叶是大自然的杰作，每一片树叶都带着大自然的灵气，有自己独特的形状、大小、纹理，呈现出独特的美，引发人们美的遐想。
树叶有很多用途（如绿化、净化空气、燃料、肥料、药用等）。用树叶代替彩笔和颜料，就可以制作美术作品。（三）欣赏树叶美术作品
教师展示本校学生用树叶制作的树叶贴画、树叶添画、树叶剪纸、树叶书签、树叶拓印等，介绍本校美术课开展树叶制作的情况。
小结：利用树叶，对树叶进行加工，可以制成许多美丽的作品，其中树叶贴画是最基本、最简单的方法。（四）探究制作方法
1、教师出示树叶贴画范作,旁边贴上空白卡纸，示范制作过程。2、抽2个学生对《牛》进行“变形创作”，并简述自己的粘贴方法。
3、教师介绍如何表现事物的形象特征，如何利用树叶概括、夸张事物的特征。
板书制作过程：选叶联想拼摆粘贴
4、学生按照由易到难的顺序完成树叶动物树叶人物树叶风景树叶添画树叶拓印树叶剪纸树叶书签等拼贴画制作。儿歌小结：片片树叶真有趣，
我来把它巧设计。选叶联想再拼摆，粘贴成画真美丽。
（五）学生作业
1、同学合作制作一幅树叶贴画。2、给作品命名，写上作者姓名。3、主意整洁，保持良好环境。（六）评价、交流
1、生评：自评说说我的创意，说说我的方法，说说我的收获。他评夸夸他的特色，找找他的问题。
2、师评：肯定学生的创造精神，从构图、色彩搭配、材料使用等方面提出具体建议。
教师小结：今天同学们的美术学习又有了不少的收获，我们用自己灵巧的双手，把一片片寻常的树叶变成了一幅幅精美的图画树叶贴画。同学们可以把这些画贴到教室或家里，让你时时都能感受到大自然的气息。为了让我们生活的世界更美丽，让我们一起来努力吧！
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