課 題.d樹葉貼畫

課題：樹葉的聯(lián)想

教學(xué)目標(biāo)：

1、認(rèn)識(shí)常見的葉子，發(fā)現(xiàn)葉子的形狀、大小、顏色各有不同。2、能大膽想象利用不同的葉子拼貼樹葉畫。3、培養(yǎng)學(xué)生想象能力和動(dòng)手創(chuàng)造能力。教學(xué)重點(diǎn)與難點(diǎn):

根據(jù)樹葉的形狀和顏色，組合成適宜的樹葉粘貼畫�；顒�(dòng)準(zhǔn)備:

1、在平時(shí)散步時(shí)已認(rèn)識(shí)多種不同形狀的樹葉2、收集大小不一、形狀和顏色各異的樹葉3、事先請(qǐng)同學(xué)們收集一些樹葉活動(dòng)流程：介紹樹葉粘貼的方法

欣賞各種樹葉欣賞范畫介紹樹葉粘貼的方法學(xué)生創(chuàng)意學(xué)生作品欣賞一、欣賞各種樹葉

1、知道它們有大有小，形狀不一，可以組成有趣的圖案2、請(qǐng)同學(xué)們看看老師展示的這些葉子像什么呢？”（觀察討論）教師小結(jié)：它們形狀都是不一樣的，有大的，有小的，有長(zhǎng)的，短的。二、欣賞范畫

1、你們想看嗎？老師把樹葉放在一起變成了一幅什么畫？（金魚）觀察金魚的身體是用什么形狀組合的？（橢圓形葉子）那它的尾巴又是什么樣子的葉子變出來的呢？（有點(diǎn)像花的葉子變出來的）

2、再讓學(xué)生看看這是什么？（出示孔雀）讓學(xué)生欣賞

教師小結(jié)：原來每一片樹葉和不同的樹葉組合就會(huì)變出不同的圖形。

三、介紹樹葉粘貼的方法

擺的時(shí)候要先想好它的位置，不要擠在一起，這樣才好看！物體拼好后，再一片片地在樹葉的背后均勻地抹上漿糊，貼在畫紙上，再用手輕輕壓一壓。四、創(chuàng)意

教師邊巡視，并對(duì)個(gè)別學(xué)生適當(dāng)指導(dǎo)，重點(diǎn)幫助正確地挑選樹葉的形狀拼圖來布局畫面。五、作品欣賞

請(qǐng)完成的同學(xué)把圖畫貼在黑板上，互相看一看，說你最喜歡哪幅畫？為什么喜歡它？

教師可以挑出幾幅好的畫稍作講評(píng)。“這幾幅畫呀，構(gòu)圖較好，畫面很滿，添加的裝飾不多，拼的很像。（最主要的是樹葉的形狀找的好）

范畫：

擴(kuò)展閱讀：樹葉貼畫

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樹葉貼畫（美術(shù)資源的開發(fā)課例）

《樹葉貼畫》是一堂典型的鄉(xiāng)土課程，就地取材，利用鄉(xiāng)村隨處可見的樹葉，根據(jù)其豐富多彩的顏色、形態(tài)，引導(dǎo)啟發(fā)學(xué)生的聯(lián)想思維和創(chuàng)造能力。該課非常貼近學(xué)生的實(shí)際生活，親切質(zhì)樸的鄉(xiāng)土內(nèi)容、通過輕松活躍的課堂氣氛、合作探究的學(xué)習(xí)方式大大激發(fā)了學(xué)生們的學(xué)習(xí)興趣，能夠使學(xué)生體會(huì)到了“生活中不是缺少美，而是缺少發(fā)現(xiàn)”的美學(xué)理念，達(dá)到了很教學(xué)對(duì)象:三年級(jí)教學(xué)時(shí)間：一課時(shí)

《美術(shù)課程標(biāo)準(zhǔn)》指出“盡可能運(yùn)用自然環(huán)境（如自然景觀、自然材料等）以及校園和社會(huì)生活中的資源（如活動(dòng)、事件和環(huán)境等）進(jìn)行美術(shù)教學(xué)�！鞭r(nóng)村小學(xué)的美術(shù)課，最令教師患難的就是學(xué)生的學(xué)具材料很齊全。因此，我們只好因地制宜、就地取材來拓寬美術(shù)課程資源，選擇本地容易收集的各種樹葉作為材料，進(jìn)行樹葉貼畫、樹葉拓印、樹葉添畫、樹葉剪紙、樹葉書簽的系列活動(dòng)，讓學(xué)生建立“變廢為寶”的思想，體會(huì)運(yùn)用自然材料創(chuàng)作的樂趣，培養(yǎng)學(xué)生的審美情趣與創(chuàng)造能力。本課為“樹葉畫”系列課程中的第一課，通過簡(jiǎn)單的樹葉拼擺造型，激發(fā)學(xué)生興趣，為以后的樹葉畫打下基礎(chǔ)。教學(xué)目標(biāo)：情感、態(tài)度與價(jià)值觀：感受自然材質(zhì)樹葉獨(dú)特的美，產(chǎn)生利用廢舊物品、自然材料進(jìn)行創(chuàng)作的興趣。

知識(shí)與技能：提升學(xué)生對(duì)造型藝術(shù)語言的廣義認(rèn)識(shí)，訓(xùn)練學(xué)生概括、夸張的表現(xiàn)能力，通過聯(lián)想、想象開啟學(xué)生的創(chuàng)新思維。

過程與方法:通過選葉、拼擺、粘貼訓(xùn)練學(xué)生的動(dòng)手能力，通過合作拼貼培養(yǎng)學(xué)生的合作意識(shí)，養(yǎng)成愛整潔、講衛(wèi)生的行為習(xí)慣。教學(xué)重點(diǎn)：

1.材料的選擇運(yùn)用；2.樹葉貼畫的技巧。教學(xué)難點(diǎn)：

形象特征表現(xiàn)、創(chuàng)新。教學(xué)準(zhǔn)備：

教師：選擇大小不同、形狀各異、顏色豐富的樹葉，壓平、涼干、裝與6個(gè)紙盒內(nèi)（供6個(gè)小組學(xué)生使用）；樹葉畫作品若干，樹葉范畫2幅；獎(jiǎng)品（樹葉書簽）若干。

學(xué)生:糨糊、卡紙教學(xué)過程：

（一）激趣導(dǎo)入、引出課題

教師提問：同學(xué)們喜歡畫畫嗎？請(qǐng)大家說說什么叫做畫（板書）？

教師對(duì)學(xué)生的回答給予一定的肯定（態(tài)度、情感方面），暫不判斷正誤。出示一幅樹葉粘貼畫作品：這是不是畫？這是什么做成的畫？板書課題：樹葉貼畫。（二）樹葉欣賞

教師給同學(xué)們帶來了禮物，請(qǐng)各位小組長(zhǎng)打開桌上的紙盒，讓每位學(xué)生拿上一片樹葉，仔細(xì)觀察、欣賞、聯(lián)想、討論。

請(qǐng)各組派代表說說自己的樹葉的形狀、色彩與紋理。教師小結(jié)：

樹葉是大自然的杰作，每一片樹葉都帶著大自然的靈氣，有自己獨(dú)特的形狀、大小、紋理，呈現(xiàn)出獨(dú)特的美，引發(fā)人們美的遐想。

樹葉有很多用途（如綠化、凈化空氣、燃料、肥料、藥用等）。用樹葉代替彩筆和顏料，就可以制作美術(shù)作品。（三）欣賞樹葉美術(shù)作品

教師展示本校學(xué)生用樹葉制作的樹葉貼畫、樹葉添畫、樹葉剪紙、樹葉書簽、樹葉拓印等，介紹本校美術(shù)課開展樹葉制作的情況。

小結(jié)：利用樹葉，對(duì)樹葉進(jìn)行加工，可以制成許多美麗的作品，其中樹葉貼畫是最基本、最簡(jiǎn)單的方法。（四）探究制作方法

1、教師出示樹葉貼畫范作,旁邊貼上空白卡紙，示范制作過程。2、抽2個(gè)學(xué)生對(duì)《�！愤M(jìn)行“變形創(chuàng)作”，并簡(jiǎn)述自己的粘貼方法。

3、教師介紹如何表現(xiàn)事物的形象特征，如何利用樹葉概括、夸張事物的特征。

板書制作過程：選葉聯(lián)想拼擺粘貼

4、學(xué)生按照由易到難的順序完成樹葉動(dòng)物樹葉人物樹葉風(fēng)景樹葉添畫樹葉拓印樹葉剪紙樹葉書簽等拼貼畫制作。兒歌小結(jié)：片片樹葉真有趣，

我來把它巧設(shè)計(jì)。選葉聯(lián)想再拼擺，粘貼成畫真美麗。

（五）學(xué)生作業(yè)

1、同學(xué)合作制作一幅樹葉貼畫。2、給作品命名，寫上作者姓名。3、主意整潔，保持良好環(huán)境。（六）評(píng)價(jià)、交流

1、生評(píng)：自評(píng)說說我的創(chuàng)意，說說我的方法，說說我的收獲。他評(píng)夸夸他的特色，找找他的問題。

2、師評(píng)：肯定學(xué)生的創(chuàng)造精神，從構(gòu)圖、色彩搭配、材料使用等方面提出具體建議。

教師小結(jié)：今天同學(xué)們的美術(shù)學(xué)習(xí)又有了不少的收獲，我們用自己靈巧的雙手，把一片片尋常的樹葉變成了一幅幅精美的圖畫樹葉貼畫。同學(xué)們可以把這些畫貼到教室或家里，讓你時(shí)時(shí)都能感受到大自然的氣息。為了讓我們生活的世界更美麗，讓我們一起來努力吧！

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