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小學(xué)美術(shù)人教版三年級(jí)下冊(cè)《第1課水墨游戲》教學(xué)設(shè)計(jì)說(shuō)課稿

  • 小學(xué)語(yǔ)文三年級(jí)上冊(cè)第4課《槐鄉(xiāng)的孩子》優(yōu)秀教案范例

    小學(xué)語(yǔ)文三年級(jí)上冊(cè)第4課《槐鄉(xiāng)的孩子》優(yōu)秀教案范例

    課堂上把重點(diǎn)放在了讓學(xué)生在讀的過(guò)程中體會(huì)出槐鄉(xiāng)孩子的懂事、吃苦耐勞和以苦為樂(lè)的特點(diǎn),因?yàn)槭锹宰x課文,所以我就只提了一個(gè)問(wèn)題,槐鄉(xiāng)的孩子與我們有什么不同呢?讓學(xué)生通過(guò)各種方式的讀說(shuō)自己讀了課文后的的體會(huì)。學(xué)生在回答時(shí),大都抓住了“勤勞的槐鄉(xiāng)孩子是不向爸爸媽媽伸手要錢(qián)的,他們上學(xué)的錢(qián)是用槐米換來(lái)的.”及槐鄉(xiāng)孩子的勤勞,對(duì)此學(xué)生感受最深,槐鄉(xiāng)孩子以苦為樂(lè)的精神,是靠我點(diǎn)出來(lái)了,當(dāng)時(shí)有部分學(xué)生說(shuō)第三段寫(xiě)的槐鄉(xiāng)孩子干活時(shí)的樣子寫(xiě)得很好,當(dāng)時(shí)天很熱他們還在干活.我就趁機(jī)引導(dǎo)學(xué)生朗讀體會(huì)當(dāng)時(shí)天氣的熱,又讀一讀描寫(xiě)干活時(shí)的句子,學(xué)生體會(huì)到孩子們勞動(dòng)時(shí)是很快樂(lè)的。學(xué)生已經(jīng)能夠通過(guò)讀文理解文中的內(nèi)涵,但總結(jié)的能力不行,大都是只看到點(diǎn),看不到面。反思本節(jié)課,雖然課文都是由學(xué)生具體讀,但都是我直接參與指導(dǎo)方法等,是我一步步引著走的,屬于半放半扶。下次的略讀課我打算完全放手,由各學(xué)習(xí)小組的組長(zhǎng)和學(xué)生一起學(xué)習(xí)。

  • 小學(xué)語(yǔ)文三年級(jí)上冊(cè)第3課《爬天都峰》優(yōu)秀教案范例

    小學(xué)語(yǔ)文三年級(jí)上冊(cè)第3課《爬天都峰》優(yōu)秀教案范例

    深入讀議,體會(huì)“我”受鼓舞爬上峰頂  1、在爬山之前,望著又高又陡的天都峰,“我”心里是怎么想的?默讀課文,圈點(diǎn)勾畫(huà),想想從哪些詞語(yǔ)、句子中看出“我”有害怕畏懼的心理?! ≈该涣?,出示并指導(dǎo)讀好問(wèn)句“我爬得上去嗎?”、感嘆句“真叫人發(fā)顫!”以及語(yǔ)氣詞“啊”“哩”等,讀中體會(huì)“我”缺乏自信、畏懼退縮的心理?! ?、結(jié)果“我”爬上峰頂了嗎?自由讀課文的第8至10自然段,出示“我”說(shuō)的話,指名朗讀?! ?、“我”看到了什么從而下定決心爬上峰頂呢?自由讀課文第3到7自然段,想想我的心理發(fā)生了怎樣的變化?! . 出示第4段重點(diǎn)句,引導(dǎo)學(xué)生深入討論交流,從中感受到“我”受老爺爺爬山鼓勵(lì)而下定決心爬上峰頂?shù)膬?nèi)心活動(dòng)?! . 體會(huì)“我”的心理,指導(dǎo)朗讀3、4自然段?! ?、“我”是怎么爬的?自由讀6、7自然段,畫(huà)出描寫(xiě)爬山動(dòng)作的詞語(yǔ)?! . 學(xué)生讀書(shū)圈劃?! .學(xué)生交流。引導(dǎo)學(xué)生聯(lián)系上下文,體會(huì)“奮力”是拼盡全身力氣的意思?! 摹芭手F鏈”、“手腳并用向上爬”可以看出爬山的艱難?! .引讀第7段,從“終于”二字上體會(huì)爬得辛苦、上山后的喜悅?! . 體會(huì)爬山的艱難、上山后的喜悅,指導(dǎo)朗讀6、7兩段。

  • 幼兒園中班聽(tīng)說(shuō)游戲活動(dòng)說(shuō)課稿 猜蓮子

    幼兒園中班聽(tīng)說(shuō)游戲活動(dòng)說(shuō)課稿 猜蓮子

    規(guī)則講完后,孩子們圍坐成半圓形,眼睛閉上,手背在后面手掌向上,這樣就可以接住老師遞過(guò)來(lái)的蓮子。大家開(kāi)始念游戲兒歌“種蓮子”:種蓮子,種蓮子,不知蓮子種哪家。東一家,西一家,到了明年就開(kāi)花。老師邊說(shuō)兒歌邊從每個(gè)孩子身后走過(guò),并且把蓮子悄悄放入一個(gè)孩子手中。最后走到中央,描述這個(gè)孩子的特征,如“我把蓮子種在一個(gè)短頭發(fā)的女孩手里,她穿著黃衣服、藍(lán)褲子和黑皮鞋”,請(qǐng)孩子們都來(lái)猜,猜對(duì)了,有蓮子的小朋友就要到前面來(lái)說(shuō)“我就是穿黃衣服、藍(lán)褲子和黑皮鞋的短頭發(fā)小女孩”,然后游戲繼續(xù)。在大家一起念“種蓮子”兒歌的時(shí)候,老師要注意糾正個(gè)別不正確的發(fā)音,鼓勵(lì)孩子們聲音宏亮的念兒歌,提醒孩子種蓮子和拿到蓮子以后都要注意保密,為孩子們自主游戲做好鋪墊。這一步非常重要。為了保證孩子在下一步按規(guī)則玩游戲,在孩子感知理解游戲規(guī)則的基礎(chǔ)上,老師根據(jù)孩子掌握程度可以帶領(lǐng)著多玩幾遍這個(gè)游戲。

  • 幼兒園中班聽(tīng)說(shuō)游戲活動(dòng)說(shuō)課稿:猜蓮子

    幼兒園中班聽(tīng)說(shuō)游戲活動(dòng)說(shuō)課稿:猜蓮子

    一、活動(dòng)目標(biāo): 1、學(xué)習(xí)使用比較連貫的語(yǔ)句來(lái)描述同伴的發(fā)式、衣著等外部特征。 2、注意傾聽(tīng)同伴的發(fā)言,并能根據(jù)言語(yǔ)描述迅速做出正確的判斷。 3、遵守游戲規(guī)則,愉快地進(jìn)行游戲。 二、活動(dòng)準(zhǔn)備: 蓮蓬一只 三、活動(dòng)設(shè)計(jì): (一)游戲?qū)搿? 在這個(gè)活動(dòng)的開(kāi)始,老師和孩子們圍坐成半圓形,這樣就自然地縮短了老師和孩子們之間的距離,孩子們會(huì)覺(jué)得老師很親近自己,為游戲情景的設(shè)置打好了情感基礎(chǔ)。 接著,老師出示蓮蓬剝出蓮子“這是什么呢?對(duì),蓮子。我們要在池塘里種上蓮子,明年才能結(jié)出蓮蓬。今天,請(qǐng)小朋友扮演池塘里的泥,老師把這顆蓮子種到池塘里,大家一起玩一個(gè)種蓮子的游戲?!绷己玫挠螒蚯榫白匀坏脑O(shè)置好了,這也是激發(fā)孩子們參與的興趣、集中孩子們注意力的一種很好的策略。

  • 人教版新課標(biāo)小學(xué)數(shù)學(xué)三年級(jí)下冊(cè)商中間或末尾有0的除法說(shuō)課稿2篇

    人教版新課標(biāo)小學(xué)數(shù)學(xué)三年級(jí)下冊(cè)商中間或末尾有0的除法說(shuō)課稿2篇

    教法、學(xué)法分析我通過(guò)閱讀教材、教參和新課標(biāo),分析學(xué)生學(xué)習(xí)狀況,認(rèn)為對(duì)這一教學(xué)內(nèi)容理解起來(lái)比較容易。所以,在教學(xué)時(shí)我準(zhǔn)備采取以下策略:1、放手讓學(xué)生自主解決問(wèn)題,嘗試計(jì)算例7的1、2題。再通過(guò)學(xué)生口述計(jì)算過(guò)程,教師設(shè)問(wèn)、強(qiáng)調(diào)重點(diǎn)使學(xué)生掌握本節(jié)課知識(shí)。2、通過(guò)學(xué)生反復(fù)敘述算理,培養(yǎng)學(xué)生口頭表達(dá)能力,并使他們自主探索“被除數(shù)中間或末尾沒(méi)有0,商中間或末尾有0”這一知識(shí)形成的過(guò)程。教學(xué)目標(biāo)1、在熟練掌握一位數(shù)筆算除法法則的基礎(chǔ)上,會(huì)正確計(jì)算商中間或末尾有0的除法的另一種情況。2、能熟練地進(jìn)行商中間有零和末尾有零的除法,形成一定的筆算技能。3、能結(jié)合具體情境估算三位數(shù)除以一位數(shù)的商,增強(qiáng)估算的意識(shí)和能力。

  • 人教A版高中數(shù)學(xué)必修一簡(jiǎn)單的三角恒等變換教學(xué)設(shè)計(jì)(1)

    人教A版高中數(shù)學(xué)必修一簡(jiǎn)單的三角恒等變換教學(xué)設(shè)計(jì)(1)

    四、小結(jié)1.知識(shí):如何采用兩角和或差的正余弦公式進(jìn)行合角,借助三角函數(shù)的相關(guān)性質(zhì)求值.其中三角函數(shù)最值問(wèn)題是對(duì)三角函數(shù)的概念、圖像和性質(zhì),以及誘導(dǎo)公式、同角三角函數(shù)基本關(guān)系、和(差)角公式的綜合應(yīng)用,也是函數(shù)思想的具體體現(xiàn). 如何科學(xué)的把實(shí)際問(wèn)題轉(zhuǎn)化成數(shù)學(xué)問(wèn)題,如何選擇自變量建立數(shù)學(xué)關(guān)系式;求解三角函數(shù)在某一區(qū)間的最值問(wèn)題.2.思想:本節(jié)課通過(guò)由特殊到一般方式把關(guān)系式 化成 的形式,可以很好地培養(yǎng)學(xué)生探究、歸納、類(lèi)比的能力. 通過(guò)探究如何選擇自變量建立數(shù)學(xué)關(guān)系式,可以很好地培養(yǎng)學(xué)生分析問(wèn)題、解決問(wèn)題的能力和應(yīng)用意識(shí),進(jìn)一步培養(yǎng)學(xué)生的建模意識(shí).五、作業(yè)1. 課時(shí)練 2. 預(yù)習(xí)下節(jié)課內(nèi)容學(xué)生根據(jù)課堂學(xué)習(xí),自主總結(jié)知識(shí)要點(diǎn),及運(yùn)用的思想方法。注意總結(jié)自己在學(xué)習(xí)中的易錯(cuò)點(diǎn);

  • 人教版高中數(shù)學(xué)選擇性必修二等比數(shù)列的概念 (1) 教學(xué)設(shè)計(jì)

    人教版高中數(shù)學(xué)選擇性必修二等比數(shù)列的概念 (1) 教學(xué)設(shè)計(jì)

    新知探究我們知道,等差數(shù)列的特征是“從第2項(xiàng)起,每一項(xiàng)與它的前一項(xiàng)的差都等于同一個(gè)常數(shù)” 。類(lèi)比等差數(shù)列的研究思路和方法,從運(yùn)算的角度出發(fā),你覺(jué)得還有怎樣的數(shù)列是值得研究的?1.兩河流域發(fā)掘的古巴比倫時(shí)期的泥版上記錄了下面的數(shù)列:9,9^2,9^3,…,9^10; ①100,100^2,100^3,…,100^10; ②5,5^2,5^3,…,5^10. ③2.《莊子·天下》中提到:“一尺之錘,日取其半,萬(wàn)世不竭.”如果把“一尺之錘”的長(zhǎng)度看成單位“1”,那么從第1天開(kāi)始,每天得到的“錘”的長(zhǎng)度依次是1/2,1/4,1/8,1/16,1/32,… ④3.在營(yíng)養(yǎng)和生存空間沒(méi)有限制的情況下,某種細(xì)菌每20 min 就通過(guò)分裂繁殖一代,那么一個(gè)這種細(xì)菌從第1次分裂開(kāi)始,各次分裂產(chǎn)生的后代個(gè)數(shù)依次是2,4,8,16,32,64,… ⑤4.某人存入銀行a元,存期為5年,年利率為 r ,那么按照復(fù)利,他5年內(nèi)每年末得到的本利和分別是a(1+r),a〖(1+r)〗^2,a〖(1+r)〗^3,a〖(1+r)〗^4,a〖(1+r)〗^5 ⑥

  • 人教版高中數(shù)學(xué)選擇性必修二等差數(shù)列的概念(1)教學(xué)設(shè)計(jì)

    人教版高中數(shù)學(xué)選擇性必修二等差數(shù)列的概念(1)教學(xué)設(shè)計(jì)

    我們知道數(shù)列是一種特殊的函數(shù),在函數(shù)的研究中,我們?cè)诶斫饬撕瘮?shù)的一般概念,了解了函數(shù)變化規(guī)律的研究?jī)?nèi)容(如單調(diào)性,奇偶性等)后,通過(guò)研究基本初等函數(shù)不僅加深了對(duì)函數(shù)的理解,而且掌握了冪函數(shù),指數(shù)函數(shù),對(duì)數(shù)函數(shù),三角函數(shù)等非常有用的函數(shù)模型。類(lèi)似地,在了解了數(shù)列的一般概念后,我們要研究一些具有特殊變化規(guī)律的數(shù)列,建立它們的通項(xiàng)公式和前n項(xiàng)和公式,并應(yīng)用它們解決實(shí)際問(wèn)題和數(shù)學(xué)問(wèn)題,從中感受數(shù)學(xué)模型的現(xiàn)實(shí)意義與應(yīng)用,下面,我們從一類(lèi)取值規(guī)律比較簡(jiǎn)單的數(shù)列入手。新知探究1.北京天壇圜丘壇,的地面有十板布置,最中間是圓形的天心石,圍繞天心石的是9圈扇環(huán)形的石板,從內(nèi)到外各圈的示板數(shù)依次為9,18,27,36,45,54,63,72,81 ①2.S,M,L,XL,XXL,XXXL型號(hào)的女裝上對(duì)應(yīng)的尺碼分別是38,40,42,44,46,48 ②3.測(cè)量某地垂直地面方向上海拔500米以下的大氣溫度,得到從距離地面20米起每升高100米處的大氣溫度(單位℃)依次為25,24,23,22,21 ③

  • 人教版高中數(shù)學(xué)選修3離散型隨機(jī)變量及其分布列(1)教學(xué)設(shè)計(jì)

    人教版高中數(shù)學(xué)選修3離散型隨機(jī)變量及其分布列(1)教學(xué)設(shè)計(jì)

    4.寫(xiě)出下列隨機(jī)變量可能取的值,并說(shuō)明隨機(jī)變量所取的值表示的隨機(jī)試驗(yàn)的結(jié)果.(1)一個(gè)袋中裝有8個(gè)紅球,3個(gè)白球,從中任取5個(gè)球,其中所含白球的個(gè)數(shù)為X.(2)一個(gè)袋中有5個(gè)同樣大小的黑球,編號(hào)為1,2,3,4,5,從中任取3個(gè)球,取出的球的最大號(hào)碼記為X.(3). 在本例(1)條件下,規(guī)定取出一個(gè)紅球贏2元,而每取出一個(gè)白球輸1元,以ξ表示贏得的錢(qián)數(shù),結(jié)果如何?[解] (1)X可取0,1,2,3.X=0表示取5個(gè)球全是紅球;X=1表示取1個(gè)白球,4個(gè)紅球;X=2表示取2個(gè)白球,3個(gè)紅球;X=3表示取3個(gè)白球,2個(gè)紅球.(2)X可取3,4,5.X=3表示取出的球編號(hào)為1,2,3;X=4表示取出的球編號(hào)為1,2,4;1,3,4或2,3,4.X=5表示取出的球編號(hào)為1,2,5;1,3,5;1,4,5;2,3,5;2,4,5或3,4,5.(3) ξ=10表示取5個(gè)球全是紅球;ξ=7表示取1個(gè)白球,4個(gè)紅球;ξ=4表示取2個(gè)白球,3個(gè)紅球;ξ=1表示取3個(gè)白球,2個(gè)紅球.

  • 人教版高中數(shù)學(xué)選擇性必修二函數(shù)的單調(diào)性(1)  教學(xué)設(shè)計(jì)

    人教版高中數(shù)學(xué)選擇性必修二函數(shù)的單調(diào)性(1) 教學(xué)設(shè)計(jì)

    1.判斷正誤(正確的打“√”,錯(cuò)誤的打“×”)(1)函數(shù)f (x)在區(qū)間(a,b)上都有f ′(x)<0,則函數(shù)f (x)在這個(gè)區(qū)間上單調(diào)遞減. ( )(2)函數(shù)在某一點(diǎn)的導(dǎo)數(shù)越大,函數(shù)在該點(diǎn)處的切線越“陡峭”. ( )(3)函數(shù)在某個(gè)區(qū)間上變化越快,函數(shù)在這個(gè)區(qū)間上導(dǎo)數(shù)的絕對(duì)值越大.( )(4)判斷函數(shù)單調(diào)性時(shí),在區(qū)間內(nèi)的個(gè)別點(diǎn)f ′(x)=0,不影響函數(shù)在此區(qū)間的單調(diào)性.( )[解析] (1)√ 函數(shù)f (x)在區(qū)間(a,b)上都有f ′(x)<0,所以函數(shù)f (x)在這個(gè)區(qū)間上單調(diào)遞減,故正確.(2)× 切線的“陡峭”程度與|f ′(x)|的大小有關(guān),故錯(cuò)誤.(3)√ 函數(shù)在某個(gè)區(qū)間上變化的快慢,和函數(shù)導(dǎo)數(shù)的絕對(duì)值大小一致.(4)√ 若f ′(x)≥0(≤0),則函數(shù)f (x)在區(qū)間內(nèi)單調(diào)遞增(減),故f ′(x)=0不影響函數(shù)單調(diào)性.[答案] (1)√ (2)× (3)√ (4)√例1. 利用導(dǎo)數(shù)判斷下列函數(shù)的單調(diào)性:(1)f(x)=x^3+3x; (2) f(x)=sinx-x,x∈(0,π); (3)f(x)=(x-1)/x解: (1) 因?yàn)閒(x)=x^3+3x, 所以f^' (x)=〖3x〗^2+3=3(x^2+1)>0所以f(x)=x^3+3x ,函數(shù)在R上單調(diào)遞增,如圖(1)所示

  • 人教版高中數(shù)學(xué)選擇性必修二等差數(shù)列的前n項(xiàng)和公式(1)教學(xué)設(shè)計(jì)

    人教版高中數(shù)學(xué)選擇性必修二等差數(shù)列的前n項(xiàng)和公式(1)教學(xué)設(shè)計(jì)

    高斯(Gauss,1777-1855),德國(guó)數(shù)學(xué)家,近代數(shù)學(xué)的奠基者之一. 他在天文學(xué)、大地測(cè)量學(xué)、磁學(xué)、光學(xué)等領(lǐng)域都做出過(guò)杰出貢獻(xiàn). 問(wèn)題1:為什么1+100=2+99=…=50+51呢?這是巧合嗎?試從數(shù)列角度給出解釋.高斯的算法:(1+100)+(2+99)+…+(50+51)= 101×50=5050高斯的算法實(shí)際上解決了求等差數(shù)列:1,2,3,…,n,"… " 前100項(xiàng)的和問(wèn)題.等差數(shù)列中,下標(biāo)和相等的兩項(xiàng)和相等.設(shè) an=n,則 a1=1,a2=2,a3=3,…如果數(shù)列{an} 是等差數(shù)列,p,q,s,t∈N*,且 p+q=s+t,則 ap+aq=as+at 可得:a_1+a_100=a_2+a_99=?=a_50+a_51問(wèn)題2: 你能用上述方法計(jì)算1+2+3+… +101嗎?問(wèn)題3: 你能計(jì)算1+2+3+… +n嗎?需要對(duì)項(xiàng)數(shù)的奇偶進(jìn)行分類(lèi)討論.當(dāng)n為偶數(shù)時(shí), S_n=(1+n)+[(2+(n-1)]+?+[(n/2+(n/2-1)]=(1+n)+(1+n)…+(1+n)=n/2 (1+n) =(n(1+n))/2當(dāng)n為奇數(shù)數(shù)時(shí), n-1為偶數(shù)

  • 人教版高中數(shù)學(xué)選擇性必修二等比數(shù)列的前n項(xiàng)和公式   (1) 教學(xué)設(shè)計(jì)

    人教版高中數(shù)學(xué)選擇性必修二等比數(shù)列的前n項(xiàng)和公式 (1) 教學(xué)設(shè)計(jì)

    新知探究國(guó)際象棋起源于古代印度.相傳國(guó)王要獎(jiǎng)賞國(guó)際象棋的發(fā)明者,問(wèn)他想要什么.發(fā)明者說(shuō):“請(qǐng)?jiān)谄灞P(pán)的第1個(gè)格子里放上1顆麥粒,第2個(gè)格子里放上2顆麥粒,第3個(gè)格子里放上4顆麥粒,依次類(lèi)推,每個(gè)格子里放的麥粒都是前一個(gè)格子里放的麥粒數(shù)的2倍,直到第64個(gè)格子.請(qǐng)給我足夠的麥粒以實(shí)現(xiàn)上述要求.”國(guó)王覺(jué)得這個(gè)要求不高,就欣然同意了.假定千粒麥粒的質(zhì)量為40克,據(jù)查,2016--2017年度世界年度小麥產(chǎn)量約為7.5億噸,根據(jù)以上數(shù)據(jù),判斷國(guó)王是否能實(shí)現(xiàn)他的諾言.問(wèn)題1:每個(gè)格子里放的麥粒數(shù)可以構(gòu)成一個(gè)數(shù)列,請(qǐng)判斷分析這個(gè)數(shù)列是否是等比數(shù)列?并寫(xiě)出這個(gè)等比數(shù)列的通項(xiàng)公式.是等比數(shù)列,首項(xiàng)是1,公比是2,共64項(xiàng). 通項(xiàng)公式為〖a_n=2〗^(n-1)問(wèn)題2:請(qǐng)將發(fā)明者的要求表述成數(shù)學(xué)問(wèn)題.

  • 人教版高中數(shù)學(xué)選擇性必修二數(shù)列的概念(1)教學(xué)設(shè)計(jì)

    人教版高中數(shù)學(xué)選擇性必修二數(shù)列的概念(1)教學(xué)設(shè)計(jì)

    情景導(dǎo)學(xué)古語(yǔ)云:“勤學(xué)如春起之苗,不見(jiàn)其增,日有所長(zhǎng)”如果對(duì)“春起之苗”每日用精密儀器度量,則每日的高度值按日期排在一起,可組成一個(gè)數(shù)列. 那么什么叫數(shù)列呢?二、問(wèn)題探究1. 王芳從一歲到17歲,每年生日那天測(cè)量身高,將這些身高數(shù)據(jù)(單位:厘米)依次排成一列數(shù):75,87,96,103,110,116,120,128,138,145,153,158,160,162,163,165,168 ①記王芳第i歲的身高為 h_i ,那么h_1=75 , h_2=87, 〖"…" ,h〗_17=168.我們發(fā)現(xiàn)h_i中的i反映了身高按歲數(shù)從1到17的順序排列時(shí)的確定位置,即h_1=75 是排在第1位的數(shù),h_2=87是排在第2位的數(shù)〖"…" ,h〗_17 =168是排在第17位的數(shù),它們之間不能交換位置,所以①具有確定順序的一列數(shù)。2. 在兩河流域發(fā)掘的一塊泥板(編號(hào)K90,約生產(chǎn)于公元前7世紀(jì))上,有一列依次表示一個(gè)月中從第1天到第15天,每天月亮可見(jiàn)部分的數(shù):5,10,20,40,80,96,112,128,144,160,176,192,208,224,240. ②

  • 人教A版高中數(shù)學(xué)必修一單調(diào)性與最大(?。┲到虒W(xué)設(shè)計(jì)(1)

    人教A版高中數(shù)學(xué)必修一單調(diào)性與最大(?。┲到虒W(xué)設(shè)計(jì)(1)

    《函數(shù)的單調(diào)性與最大(?。┲祡》系人教A版高中數(shù)學(xué)必修第一冊(cè)第三章第二節(jié)的內(nèi)容,本節(jié)包括函數(shù)的單調(diào)性的定義與判斷及其證明、函數(shù)最大(?。┲档那蠓āT诔踔袑W(xué)習(xí)函數(shù)時(shí),借助圖像的直觀性研究了一些函數(shù)的增減性,這節(jié)內(nèi)容是初中有關(guān)內(nèi)容的深化、延伸和提高函數(shù)的單調(diào)性是函數(shù)眾多性質(zhì)中的重要性質(zhì)之一,函數(shù)的單調(diào)性一節(jié)中的知識(shí)是前一節(jié)內(nèi)容函數(shù)的概念和圖像知識(shí)的延續(xù),它和后面的函數(shù)奇偶性,合稱(chēng)為函數(shù)的簡(jiǎn)單性質(zhì),是今后研究指數(shù)函數(shù)、對(duì)數(shù)函數(shù)、冪函數(shù)及其他函數(shù)單調(diào)性的理論基礎(chǔ);在解決函數(shù)值域、定義域、不等式、比較兩數(shù)大小等具體問(wèn)需用到函數(shù)的單調(diào)性;同時(shí)在這一節(jié)中利用函數(shù)圖象來(lái)研究函數(shù)性質(zhì)的救開(kāi)結(jié)合思想將貫穿于我們整個(gè)高中數(shù)學(xué)教學(xué)。

  • 新人教版高中英語(yǔ)必修3Unit 1 Festivals and Celebrations-Reading for Writing教學(xué)設(shè)計(jì)一

    新人教版高中英語(yǔ)必修3Unit 1 Festivals and Celebrations-Reading for Writing教學(xué)設(shè)計(jì)一

    The topic of this part is “Write about your festival experience”.During the Listening and Speaking and Talking, students are just asked to say out their festival experiences such as the Spring Festival, Mid-autumn Day, but this part students will be asked to write down their own festival experiences. During the reading part, it introduces the Naadam Festival in Inner Mongolia Autonomous Region, which can give students a good example to imitate. Students not only learn the festival, but touch and feel the Inner Mongolian’s character, the spirit and cultural atmosphere, which can help students form the cultural awareness and learn to enjoy and value the diversity of Chinese culture.Concretely, the dairy tells the experience that the author spent the Naadam Festival in Inner Mongolia Autonomous Region with his/her friend. The structure is clear. In the opening paragraph, it introduces the topic of the Naadam Festival and the whole feeling. Then it introduces the items of the festival like the ceremony, wrestling and horse racing. Finally, it summarizes this experience. Because this part is a travel journal, we must guide students pay more attention to these details: 1. use the first person. 2. use the past tense to tell the past thing and use the present or future tense to describe the scenery. 3. use the timeline to tell the development. 4. be careful for the author’s psychology, emotion and feeling, etc.1. Read quickly to get main idea; read carefully to get the detailed information about Naadam Festival.2. Learn the structure of the reading article and language.3. Write an article about a festival experience4. Learn to use the psychology, emotions and feeling in the writing.1. Write an article about a festival experience.2. Use the structure of the reading article and language.

  • 新人教版高中英語(yǔ)選修2Unit 1 Science and Scientists-Discovering useful structures教學(xué)設(shè)計(jì)

    新人教版高中英語(yǔ)選修2Unit 1 Science and Scientists-Discovering useful structures教學(xué)設(shè)計(jì)

    The grammatical structure of this unit is predicative clause. Like object clause and subject clause, predicative clause is one of Nominal Clauses. The leading words of predicative clauses are that, what, how, what, where, as if, because, etc.The design of teaching activities aims to guide students to perceive the structural features of predicative clauses and think about their ideographic functions. Beyond that, students should be guided to use this grammar in the context apporpriately and flexibly.1. Enable the Ss to master the usage of the predicative clauses in this unit.2. Enable the Ss to use the predicative patterns flexibly.3. Train the Ss to apply some skills by doing the relevant exercises.1.Guide students to perceive the structural features of predicative clauses and think about their ideographic functions.2.Strengthen students' ability of using predicative clauses in context, but also cultivate their ability of text analysis and logical reasoning competence.Step1: Underline all the examples in the reading passage, where noun clauses are used as the predicative. Then state their meaning and functions.1) One theory was that bad air caused the disease.2) Another theory was that cholera was caused by an infection from germs in food or water.3) The truth was that the water from the Broad Street had been infected by waste.Sum up the rules of grammar:1. 以上黑體部分在句中作表語(yǔ)。2. 句1、2、3中的that在從句中不作成分,只起連接作用。 Step2: Review the basic components of predicative clauses1.Definition

  • 新人教版高中英語(yǔ)必修3Unit 1 Festivals and celebrations-Discovering Useful Structure教學(xué)設(shè)計(jì)

    新人教版高中英語(yǔ)必修3Unit 1 Festivals and celebrations-Discovering Useful Structure教學(xué)設(shè)計(jì)

    4.That was an experience that frightened everyone. →That was _____________________. 答案:1. taking 2. being discussed 3. in the reading room 4. a frightening experienceStep 6 The meaning and function of V-ing as the predicative動(dòng)詞-ing形式作表語(yǔ),它通常位于系動(dòng)詞后面,用以說(shuō)明主語(yǔ)“是什么”或“怎么樣”一種表示主語(yǔ)的特質(zhì)、特征和狀態(tài), 其作用相當(dāng)于形容詞; 另一種具體說(shuō)明主語(yǔ)的內(nèi)容, 即主語(yǔ)等同于表語(yǔ), 兩者可互換。The music they are playing sounds so exciting. 他們演奏的音樂(lè)聽(tīng)起來(lái)令人激動(dòng)。The result is disappointing. 結(jié)果令人失望。Our job is playing all kinds of music. 我們的工作就是演奏各種音樂(lè)。Seeing is believing. 眼見(jiàn)為實(shí)。Step 7 Practice1. It is ________(amaze) that the boy is able to solve the problem so quickly.2. Buying a car is simply _______(waste) money. 3. Please stop making the noise—it’s getting ________(annoy). 4. complete the passage with the appropriate -ing form.La Tomatina is a festival that takes place in the Spanish town Bunol every August. I think many food festivals are __________ because people are just eating. however, this festival is _________ because people don't actually eat the tomatoes. Instead, they throw them at each other! the number of people ________ part in this tomato fight, can reach up to 20,000, and it is a very __________ fight that lasts for a whole hour. The _______ thing is how clean Bunol is after the tomatoes are washed away after the fight. this is because the juice form tomatoes is really good for making surfaces clean!答案:1. amazing 2. wasting 3. annoying4. boring interesting taking exciting amazing

  • 新人教版高中英語(yǔ)必修3Unit 1 Festivals and Celebrations-Reading and Thinking教學(xué)設(shè)計(jì)

    新人教版高中英語(yǔ)必修3Unit 1 Festivals and Celebrations-Reading and Thinking教學(xué)設(shè)計(jì)

    The topic of this part is “Discover the reasons for festivals and celebrations.The Listening & Speaking & Talking part aims at talking about the experiences and feelings or emotions about the festivals and celebrations. This section aims at detecting the reason why the people celebrate the festivals, the time, the places, the types and the way of celebrations. It also explains why some traditions in the old celebrations are disappearing, like the firecrackers in the big cities and some new things are appearing like the prosperity of business or commerce. 1. Students can talk about what festivals they know and the reasons and the way of celebrating them.2. Students should learn the reading skills such as the headline and get the topic sentences, the structures of articles.3. Students can understand the past, the present situation of some festival around the world and why there are some changes about them. 4. Students can have the international awareness about the festivals.1. Students should learn the reading skills such as the headline and get the topic sentences, the structures of articles.2. Students can understand the past, the present situation of some festival around the world and why there are some changes about them.Step 1 Lead in---Small talkWhat festival do you like best ? Why ?I like the Spring Festivals because I can set off the fireworks, receive the lucky money and enjoy the Gala with my families.Step 2 Before reading---Pair workWhy do people celebrate different festivals ?The Spring Festivals is to celebrate the end of winter and the coming of spring and new life.The Mid-autumn Day is to celebrate the harvest and admire the moon.

  • 新人教版高中英語(yǔ)必修3Unit 1 Festivals and Celebrations-Reading for writing教學(xué)設(shè)計(jì)二

    新人教版高中英語(yǔ)必修3Unit 1 Festivals and Celebrations-Reading for writing教學(xué)設(shè)計(jì)二

    Step 3 Analyzing article structureActivity 31. Teachers raise questions to guide students to analyze the chapter structure of this diary and think about how to describe the festival experience. (1)What should be included in the opening/body/closing paragraph(s)?(2)How did the writer arrange his/her ideas?(3)What kind of interesting details did the writer describe?(4)How did the writer describe his/her feelings/emotions during the event?2. Students read and compare the three sentence patterns in activity 2. Try to rewrite the first paragraph of the diary with these three sentence patterns. After that, students exchange corrections with their partners. Such as:●This was my first time spending three days experiencing the Naadam Festival in China’s Inner Mongolia Autonomous Region and it was an enjoyable and exciting experience. ●I'll never forget my experience at the Naadam Festival because it was my first time to watch the exciting Mongolian games of horse racing, wrestling, and archery so closely. ●I'll always remember my first experience at the Naadam Festival in China’s Inner Mongolia Autonomous Region because it was so amazing to spend three days witnessing a grand Mongolian ceremony. Step 4 Accumulation of statementsActivity 41. Ask the students to read the diary again. Look for sentences that express feelings and emotions, especially those with the -ing form and the past participle. Such as:● …h(huán)orse racing, wrestling, and archery, which are all so exciting to watch. ● some amazing performances● I was surprised to see…● I was a little worried about. . . ● feeling really tiredOther emotional statements:●I absolutely enjoyed the archery, too, but the horse races were my favourite part. ●I'm finally back home now, feeling really tired, but celebrating Naadam with my friend was totally worth it. ●He invited me back for the winter to stay in a traditional Mongolian tent and cat hot pot. I can’t wait!2. In addition to the use of the -ing form and the past participle, the teacher should guide the students in the appreciation of these statements, ask them to memorize them, and encourage them to use them reasonably in writing practice.

  • 新人教版高中英語(yǔ)選修2Unit 1 Science and Scientists-Learning about Language教學(xué)設(shè)計(jì)

    新人教版高中英語(yǔ)選修2Unit 1 Science and Scientists-Learning about Language教學(xué)設(shè)計(jì)

    Step 7: complete the discourse according to the grammar rules.Cholera used to be one of the most 1.__________ (fear) diseases in the world. In the early 19th century, _2_________ an outbreak of cholera hit Europe, millions of people died. But neither its cause, 3__________ its cure was understood. A British doctor, John Snow, wanted to solve the problem and he knew that cholera would not be controlled _4_________ its cause was found. In general, there were two contradictory theories 5 __________ explained how cholera spread. The first suggested that bad air caused the disease. The second was that cholera was caused by an _6_________(infect) from germs in food or water. John Snow thought that the second theory was correct but he needed proof. So when another outbreak of cholera hit London in 1854, he began to investigate. Later, with all the evidence he _7_________ (gather), John Snow was able to announce that the pump water carried cholera germs. Therefore, he had the handle of the pump _8_________ (remove) so that it couldn't be used. Through his intervention,the disease was stopped in its tracks. What is more, John Snow found that some companies sold water from the River Thames that __9__________________ (pollute) by raw waste. The people who drank this water were much more likely _10_________ (get) cholera than those who drank pure or boiled water. Through John Snow's efforts, the _11_________ (threaten) of cholera around the world saw a substantial increase. Keys: 1.feared 2.when 3. nor 4.unless 5.that/which 6.infection 7.had gathered 8.removed 9.was polluted 10.to get 11. threat

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