Lesson22TheGiant(I)。Unit4Lesson22Surprise。2019版八年級(jí)數(shù)學(xué)下冊(cè) 第22章 四邊形 22.4 矩形教案 (新版)冀教版 一、教學(xué)目標(biāo)。Unit 1 School and Friends Lesson 5 May I Have a Book。
新版冀教版Tag內(nèi)容描述:
1、Unit4StoriesandPoems,Lesson20SayItInFive,DoChineseoldpoemsfollowapattern?,BrotherBeautiful,athleticTeasing,shouting,laughingFriendandenemytooMine,Letsenjoyapoem,andanswerthequestions.,兄弟,美麗的,運(yùn)動(dòng)的,取消,大。
2、Unit3Safety,Lesson14AccidentsHappen,Whathappened?,Caraccidents.,事故,意外,accident,城鎮(zhèn),town,阿爾伯塔,Alberta,記者,reporter,滾動(dòng),(使)翻滾,roll,faulticyuglyshoulderwoundrecoverexpectJamesAndrews,n.缺點(diǎn);過(guò)錯(cuò)adj.結(jié)滿冰的adj.丑陋的。
3、Unit6MoviesandTheatre,Lesson31AMovieoraPlay,theatre,劇院,劇場(chǎng),t,Theatreisaformofartandthatpresentsastorytoliveaaudienceinaspecificplace.Theperformersmaymunicatewiththeaudiencethroughgesture,speech。
4、Unit10GetReadyfortheFuture,Lesson57BestWishes,Wearestudyinginajuniorhighschool.Wewanttogotoaseniorhighschoolinthefuture.juniorhigh(初中)seniorhigh(高中),Whatwillyoumissmostaboutjuniorhighschool?,錢包,walle。
5、Unit9Communication,Lesson54HowEmbarrassing!,Howembarrassing,使人尷尬的,令人為難的,Whathappened?,embarrassing,Haveyoueverembarrassing?,熟悉的,常見(jiàn)到的,familiar,輕拍,輕敲,tap,片刻,瞬間,moment,Whatabouthim?,Readandanswertheques。
6、因式分解,之平方差公式法,知識(shí)回顧,1、什么叫把多項(xiàng)式分解因式?,把一個(gè)多項(xiàng)式化成幾個(gè)整式的積的形式,叫做多項(xiàng)式的分解因式.,2、已學(xué)過(guò)哪一種分解因式的方法?,提公因式法,知識(shí)探索,平方差公式:,(a+b)(a-b)=a2-b2,整式乘法,因式分解,這種分解因式的方法稱為公式法。,a2-b2= (a+b)(a-b),知識(shí)探索,1、能否用提公因式的方法把多項(xiàng)式p2-16,4a2-b2分解因式?,提示:a2-b2=(a+b)(a-b),4a2-b2,解:p2-16,= p2 - 42,=(p+4)(p-4),=(2a)2-b2,=(2a+b)(2a-b),利用平方差公式進(jìn)行因式分解,(1) x4y2-4= ( )2-( )2,(2) 0.49x2-0.01y2=( )2-( )2,2、口答。
7、提公因式法,1、什么叫做因式分解? 2 、兩個(gè)多項(xiàng)式進(jìn)行整式乘法運(yùn)算的結(jié)果是什么?一個(gè)多項(xiàng)式因式分解的結(jié)果是什么?,復(fù) 習(xí),判斷是否是因式分解 要看等式的左邊是否是一個(gè)多項(xiàng)式,右邊是否是幾個(gè)整式的積的形式。,試一試: 下列由左邊到右邊的變形中,哪些是因式分解,哪些不是? (1) ( ) (2)(x+2)(x-2)= x2-4( ) (3)a2-b2+1=(a+b)(a-b)+1( ) (4)ax2+ay2=a(x2+y2) ( ),1、多項(xiàng)式ab +bc各項(xiàng)都含有相同的因式嗎?多項(xiàng)式3x2+6x呢?多項(xiàng)式mb2+nb+b呢?,2、你能將上面的多項(xiàng)式寫(xiě)成幾個(gè)因式的乘積的形式嗎?說(shuō)出你的結(jié)果.,多項(xiàng)。
8、6.3 二元一次方程組的應(yīng)用,這是拉貨途中大馬和小馬的一段對(duì)話,根據(jù)大馬和小馬的對(duì)話,你能求出它們各馱了幾包貨物嗎?,一起探究,小馬說(shuō):“我還想給你1包呢!”,大馬說(shuō):“那可不行!如果你給我1包,我馱的包數(shù)就是你的2倍了.”,大馬說(shuō):“把我馱的東西給你1包多好哇!這樣咱們馱的包數(shù)就一樣多了.”,整理,得, ,, 得 y=5. 把y=5代入,得 x=7. 所以,方程組的解為,答:大馬馱物7包,小馬馱物5包.,2.如果設(shè)大馬馱貨x包,小馬馱貨y包,請(qǐng)列出二元一次方程組? 3.請(qǐng)你試著解出2中所列的二元一次方程組,并和同學(xué)們進(jìn)行交流.,根據(jù)題意,得,鞏。
9、司馬遷,西漢著名史學(xué)家。他生于史官世家,父親司馬談,是西漢中央政府的“太史令”。司馬遷自幼受家庭的熏陶,博覽群書(shū),才華出眾。二十歲以后,又到各地漫游,開(kāi)闊了眼界,收集了資料,豐富了學(xué)識(shí)。負(fù)責(zé)管理皇家圖書(shū)和收集史料,研究天文歷法。司馬談打算編寫(xiě)一部通史,愿望沒(méi)有實(shí)現(xiàn)就死去了。臨死的時(shí)侯,囑咐司馬遷完成他未竟的事業(yè)。司馬遷繼任父職為太史令。,不幸的遭遇,使司馬遷精神受到極大刺激,曾一度想自殺,但他想起了父親的遺言,又以古人孔子、屈原、左丘明、孫子、韓非等在逆境中發(fā)憤有為鼓勵(lì)自己,終于以驚人的意志忍辱。
10、海底森林,儒勒 凡爾納,學(xué)習(xí)目標(biāo),1.了解作者凡爾納及其作品海底兩萬(wàn)里,理解科幻小說(shuō)利用想象反映生活的寫(xiě)作技巧。,2.熟讀課文理清文章的結(jié)構(gòu),揣摩重點(diǎn)句子和詞語(yǔ)的內(nèi)涵及表達(dá)作用,加深對(duì)語(yǔ)言的理解,增強(qiáng)語(yǔ)感;研讀重點(diǎn)語(yǔ)段,把握文中刻畫(huà)人物的方法,體會(huì)凡爾納小說(shuō)的藝術(shù)特色。,3.:結(jié)合背景和有關(guān)情節(jié),感悟艇長(zhǎng)這一硬漢的人格魅力。,蹼( ) 鰭( ) 匍匐( ) 滑稽( ) 迄今( ) 麇集( ) 紊亂( ) 瀕臨( ) 拓荒( ) 細(xì)莖( ) 混淆( ) 玫瑰( ),q,pf,j,bn,p,q,wn,jng,1. 易讀錯(cuò)寫(xiě)錯(cuò)的字,tu,qn,xio,gu,課前預(yù)習(xí),潛艇( ) 胭脂( ) 纖細(xì)( ) 荊棘( ) 。
11、Class begins! Are You Ready?,Be Happy to Sing and Dance,Unit 2 Good Health To You! Lesson 11 Work Hard,Learning Aims,1. We can listen, say and read: high 2. We can ask, answer and use: - Do you think its important to work hard? - Yes, I do.,I do exercise every day.,high,low,Your eyes? Your ears? Look and listen carefully!,Lets show!,Homework,Finish your exercise about Lesson11。
12、Helen Keller,Guessing Game,Discuss,What do you know about Helen Keller?,What do you want to know about Helen Keller?,welcome to use these PowerPoint templates, New Content design, 10 years experience,Helen Keller was born in the U.S.in 1880. When she was 18 months old, she fell ill and became deaf and blind.,welcome to use these PowerPoint templates, New Content design, 10 years experience,Her parents loved her very much, but they did not know how to help her.,welcome to use these PowerPoin。
13、冀教版六年級(jí)英語(yǔ)下冊(cè),Lesson 11 Work hard!,Chant : Everyone,everyone. reach up high,high、high、high. everyone, everyone. bend low, low、low、low.,Lesson 11: Work Hard !,It is low. It is high.,Work Hard Work hard at school: Listen to your teacher Always do your homework . Work hard at sports : Reach up high ! Bend low ! Have fun with your friends .,Work hard at home : Listen to your mother and father . Help clean the house .,Questions: (According to part 1) What are they doing ? What is he doin。