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一年級(jí)朗文下冊(cè)1B 教材 Chapter 1 A

  • 人教版新目標(biāo)初中英語(yǔ)八年級(jí)下冊(cè)Have you ever been to an amusement park教案

    人教版新目標(biāo)初中英語(yǔ)八年級(jí)下冊(cè)Have you ever been to an amusement park教案

    (1)Have you ever been to …? Yes, I have. / Yes, I have ever been to …No, I haven’t. / No, I have never been to …(2)When did you go there? I went there last year. (3)I have never been to a water park. Neither have I. I have ever been to an amusement park. So have I. (4)How long have you been studying English? I’ve been studying English since nine o’clock. I’ve been studying English since I came back home. I’ve been studying English for five hours. (5)What’s that? It’s an amusement park in Japan. I’ve never been to an amusement park like it before. It’s fun to learn another language. Let’s go tonight. Isn’t this great?space museum, amusement park, water park, South America, Peru, Holland, European culture, tour guide, flight attendant, musical instrument, more than, be from, get to, take lessons, neither, discover, graduate, change

  • 人教版新目標(biāo)初中英語(yǔ)八年級(jí)下冊(cè)What should I do教案2篇

    人教版新目標(biāo)初中英語(yǔ)八年級(jí)下冊(cè)What should I do教案2篇

    說(shuō)明:在幫Li Lei提建議的同時(shí),教育學(xué)生如何學(xué)好英語(yǔ)。第三課時(shí)教學(xué)目標(biāo)1. 語(yǔ)言目標(biāo):a) 詞匯: Original, in style, haircut, the same as.b) 語(yǔ)言結(jié)構(gòu):My friend wears the same clothes and has the same haircut as I do.2. 能力目標(biāo):大多數(shù)學(xué)生能夠談?wù)撟约合矚g哪種服裝,提高查找信息的能力。3. 情感目標(biāo):學(xué)會(huì)如何與朋友相處,要有自己對(duì)時(shí)尚的看法。教學(xué)重點(diǎn)掌握一些重要詞匯。教學(xué)難點(diǎn)學(xué)會(huì)談?wù)搯?wèn)題,并能提出書面建議。◆教學(xué)突破首先針對(duì)Erin的問(wèn)題,提出個(gè)人的建議,模仿2c部分的對(duì)話展開雙人交際Pair-work;聽老師誦讀3a部分的信件,并找出LEFT OUT的問(wèn)題所在;學(xué)生完成3b部分的內(nèi)容,給Left Out提出書面的建議;學(xué)以口頭形式提出自己目前存在的某個(gè)問(wèn)題,講給大家聽,讓同學(xué)們給自己提出一個(gè)建議,并作筆錄;學(xué)生兩、三個(gè)人分成一組,隨意性地進(jìn)行口語(yǔ)交際,談?wù)揚(yáng)14的第4部分的某個(gè)問(wèn)題,相互交換意見。

  • 人教版新目標(biāo)初中英語(yǔ)八年級(jí)下冊(cè)How long have you been collecting shells教案2篇

    人教版新目標(biāo)初中英語(yǔ)八年級(jí)下冊(cè)How long have you been collecting shells教案2篇

    Step Ⅱ Show the new words on the screen and teach the new words. Read the new words to students and ask them to repeat.Step Ⅲ 3aThis activity introduces new vocabulary and provides reading practice using the target language.In this activity first look at the four pictures.T: What can you see in the pictures?Ss: Four snow globes.T: Right. There are four snow globes in the pictures. And what are they?Ss: They are a monster, two polar bears, two penguins and a birthday cake.Write these words on the blackboard: snow globe; monster; polar bear; penguin and birthday cake. Read them to the class and ask students to repeat each one. Make sure students understand each word.Use a computer to show the E-mail message on the screen and read the message to students.Get students to read the e-mail on their own, and then draw lines connecting each snow globe and its description.Correct the answers.AnswersA line should connect each snow globe picture with the words that describe it in the letter.Step Ⅳ 3bThis activity provides writing practice using the target language.First review Activity 2a on Page 47.Then ask students to complete the message according to Activity 2a.Some partial sentences are given to students. Write about one person's collection.When students work, walk around the room checking the progress and offering help as needed.When they finish, ask some students to read their messages to the class.

  • 人教版新目標(biāo)初中英語(yǔ)八年級(jí)下冊(cè)What were you doing when the UFO arrived教案2篇

    人教版新目標(biāo)初中英語(yǔ)八年級(jí)下冊(cè)What were you doing when the UFO arrived教案2篇

    (一).知識(shí)方面: 1.培養(yǎng)學(xué)生能運(yùn)用過(guò)去進(jìn)行時(shí)來(lái)描述、談?wù)撨^(guò)去某個(gè)時(shí)間正在發(fā)生的事情或動(dòng)作的意識(shí)和能力,能就過(guò)去某個(gè)時(shí)間正在發(fā)生的動(dòng)作做出正確的描述。 2.培養(yǎng)學(xué)生的想象力和角色扮演的合作能力。 3.培養(yǎng)學(xué)生講述過(guò)去發(fā)生的事情經(jīng)過(guò)的能力。能正確運(yùn)用一般過(guò)去時(shí)來(lái)講述故事。 (二).技能方面: 1.本單元的語(yǔ)言目標(biāo)是Talk about past events and tell a story(談?wù)撨^(guò)去的時(shí)間和講述一個(gè)故事),圍繞這一目標(biāo),要涉及句型: What were you doing when the UFO arrived? ----I was sitting in the barber’s chair. The barber was cutting my hair. 因此必須學(xué)習(xí)standing、studying、cleaning、sleeping、cooking、making、eating、cutting、等表示地點(diǎn)的詞,以便為上述句型提供語(yǔ)言材料。2.學(xué)習(xí)過(guò)去進(jìn)行時(shí)的有關(guān)知識(shí)。Was/were+現(xiàn)在分詞,是該時(shí)態(tài)的表達(dá)式。 3.在學(xué)習(xí)過(guò)程中,要區(qū)分The boy was walking down the street when the UFO landed.和While the boy was walking down the street, the UFO landed.這兩種由when和while引導(dǎo)的狀語(yǔ)從句的句型結(jié)構(gòu)。注意它們的不同。

  • 人教版新目標(biāo)初中英語(yǔ)八年級(jí)下冊(cè)Would you mind turning down the music教案

    人教版新目標(biāo)初中英語(yǔ)八年級(jí)下冊(cè)Would you mind turning down the music教案

    Step 4. Group work (4)1. Ask a pair of students to read the dialogue. Say, This activity provides speaking, listening and writing practice using the target language.2. Ask students to complete the work in groups.3. Check the answers with the whole class. 4. Explain some of the language points. Step 5. Word review (Self check 1)1. Ask students to read the words and the phrases given. 2. Fill in the blanks with proper forms of these words to complete the sentences. 3. Check the answers with the whole class. Homework:Do activity 2 on page 57 after class. Period 6Teaching aims: 1. Teach vocabulary words and the useful expressions. 2. Enable the students to learn etiquette in different culture. 3. Help the students learn how to behave politely in public places and in daily life. Teaching procedures:Step 1. RevisionHelp students to review the function of making requests through a free talk. Then lead them to the topic of etiquette. Explain the meaning of etiquette. Or, ask students to look it up in the dictionary. Step 2. Pre-reading (Section 1)1. Ask students to read the picture and make a list with their partner about how many rules of etiquette can be seen being broken.

  • 人教版新目標(biāo)初中英語(yǔ)九年級(jí)下冊(cè)By the time I got outside, the bus had already left教案

    人教版新目標(biāo)初中英語(yǔ)九年級(jí)下冊(cè)By the time I got outside, the bus had already left教案

    Ⅰ. Teaching Aims and Demands1. Knowledge Objects(1) Key Vocabularyoversleep(2) Target LanguageWhat happened?I overslept. And by the time I got up, my brother had already gotten in the shower.2. Ability Objects(1) Teach the students to use the new words.(2) Train the students to narrate past events with the Past Perfect Tense.(3) Train the students' listening and speaking skills with the target language.3. Moral ObjectIt’s a good habit to go to bed early in the evening and get up early in the morning. So you’ll never be in a hurry in the morning.Ⅱ. Teaching Key Points1. Key Vocabularyoversleep2. Target LanguageNarrate past events with the Past Perfect TenseⅢ. Teaching Difficult Points1. Train the students to narrate past events with the Past Perfect Tense.2. Train the students to understand the target language in spoken conversation.Ⅳ. Teaching Methods1. Thinking of examples from the students' real lives.2. Making sentences by looking at the pictures.Ⅴ. Teaching AidA tape recorderⅥ. Teaching ProceduresStep I Revision1. Revise the language points in Unit 8.Ask some questions like this: What volunteer work would you like to do?Help the students to answer, I’d like to…/I love to…/I hope to2. Practice the dialogue in Activity 3c on page 62 again. Get students to role play the similar dialogues with the following.

  • 人教版新目標(biāo)初中英語(yǔ)九年級(jí)下冊(cè)Rainy days make me sad教案

    人教版新目標(biāo)初中英語(yǔ)九年級(jí)下冊(cè)Rainy days make me sad教案

    1. 教材分析本單元以how do things affect you?為話題, 從顏色、天氣、音樂(lè)、廣告、產(chǎn)品等方面談?wù)摿送饨缡挛锶绾斡绊懭说男那椤R髮W(xué)生掌握表達(dá)某物或某事給人帶來(lái)的感覺(jué)、看法或影響等。共設(shè)計(jì)了四個(gè)部分的內(nèi)容:Section A 該部分有4個(gè)模塊:第一模塊圍繞Which restaurant would you like to go to?這一話題展開思維(1a)、聽力(1b)、口語(yǔ)(1c)訓(xùn)練;第二模塊圍繞How does music affect you? 進(jìn)行聽力(2a-2b)、口語(yǔ)訓(xùn)練(2c);第三模塊繼續(xù)圍繞how do colors in the restaurant affect you這一話題展開訓(xùn)練,訓(xùn)練形式為閱讀和問(wèn)題體驗(yàn)(3a)和小組活動(dòng)(3b);第四模塊仍就How do things affect you這一話題以調(diào)查的形式展開討論。Section B該部分有4個(gè)模塊:第一模塊圍繞產(chǎn)品廣告對(duì)人們的影響這一話題以“配對(duì)”(1a)與“列舉”(1b)兩種形式展開訓(xùn)練;第二模塊繼續(xù)圍繞How do things affect you? 進(jìn)行聽力(2a-2b)、口語(yǔ)對(duì)話訓(xùn)練(2c);第三模塊圍繞“Advertising”這一話題展開閱讀(3a-3b)和寫作(3c)訓(xùn)練;第四模塊圍繞How posters affect you這一話題以口語(yǔ)訓(xùn)練形式展開小組活動(dòng)。

  • 人教版新目標(biāo)初中英語(yǔ)九年級(jí)下冊(cè)Could you please tell me where the restrooms are教案

    人教版新目標(biāo)初中英語(yǔ)九年級(jí)下冊(cè)Could you please tell me where the restrooms are教案

    Step Ⅰ RevisionCheck homework. Ask a few students to read the article in 3a.Then ask a few students to read their guides.Step Ⅱ Part 1Look at the words in the box. Ask a student to read them. Make sure the students understand the meaning of the words. You are to fill in the blanks with the words. In some cases, students may need to use another form of the word, for example adjusting for tense or subject/ verb agreement.Ask students to fill in the blanks on their own.Check the answers. Step ⅢPart 2Go through the instructions with the class.Look at the example with the students.Ask students what the answer would be.Ask a student to read the question and answer it.Excuse me, could you tell me where the bank is, please?The bank is across the street from the shopping malt.Get students to complete the work in pairs.Check the answers. Ask a few students to read their questions.Step Ⅳ Just for Fun!Ask all the students to read the conversation. Ask: What is funny about this cartoon? Help students to explain. A Martian is a person from the planet Mars.There is no such thing as Martian food on Earth, and the clerk looks silly because he is trying to think of where there is a Martian restaurant.Invite some pairs of students to present this conversation to the rest of the class.Step Ⅴ Summary and HomeworkIn this class, we’ve done much writing practice using the key vocabulary words and the target language presented in this unit. After class, please finish the questions in 2 in your exercise books. Then finish the exercises on pages 47~48 of the workbook as well.The Seventh Period Ⅰ Teaching Aims and Demands1. Knowledge Objects(1) Key Vocabularyimage, adventure, jealousy, hero, crime, journey, brave, no longer, show interest in, take it easy, become interested in, plain looks(2)Text:Grown-ups like cartoons, too.2. Ability Objects(1) Fast-reading to get a general idea of the text.(2) Careful-reading to get the detailed information in the text.

  • 人教版新目標(biāo)初中英語(yǔ)九年級(jí)下冊(cè)We’re trying to save the manatees教案2篇

    人教版新目標(biāo)初中英語(yǔ)九年級(jí)下冊(cè)We’re trying to save the manatees教案2篇

    本單元主要圍繞著有關(guān)瀕臨滅絕的動(dòng)物這一話題,學(xué)習(xí)了應(yīng)該怎樣保護(hù)我們的環(huán)境,以及就某一問(wèn)題展開辯論。目標(biāo)提示語(yǔ)言目標(biāo)能夠運(yùn)用所學(xué)知識(shí),就某一問(wèn)題展開辯論。認(rèn)知目標(biāo)1、復(fù)習(xí)一些語(yǔ)法:現(xiàn)在進(jìn)行時(shí)、一般現(xiàn)在時(shí)、用used to 表示一般過(guò)去時(shí)、現(xiàn)在完成時(shí)、一般過(guò)去時(shí)的被動(dòng)語(yǔ)態(tài)。2、學(xué)會(huì)表達(dá)同意和不同意。3、學(xué)會(huì)以下基本句型:We’re trying to save the manatees.Manatees eat about 100 pounds of food a day.There used to be a lot of manatees.In 1972,it was discovered that they were endangered.Some of the swamps have become polluted.情感目標(biāo)了解一些瀕臨滅絕的動(dòng)物的生活習(xí)性和瀕臨滅絕的原因,教育學(xué)生應(yīng)該如何保護(hù)環(huán)境。教學(xué)提示充分利用多媒體等教學(xué)設(shè)備,創(chuàng)設(shè)與本課話題相關(guān)的情境,如各種不同種類的動(dòng)物、動(dòng)物園以及有關(guān)環(huán)境的畫畫等等。圍繞著本單元的教學(xué)目標(biāo),設(shè)計(jì)一些貼近學(xué)生實(shí)際的教學(xué)任務(wù),如讓學(xué)生談?wù)撟约鹤钕矚g的動(dòng)物,如何拯救瀕危動(dòng)物,如何保護(hù)環(huán)境等等。讓學(xué)生根據(jù)所學(xué)知識(shí),就動(dòng)物園是否對(duì)動(dòng)物有利以及其他的話題進(jìn)行辯論。

  • 人教版新目標(biāo)初中英語(yǔ)九年級(jí)下冊(cè)You’re supposed to shake hands教案

    人教版新目標(biāo)初中英語(yǔ)九年級(jí)下冊(cè)You’re supposed to shake hands教案

    教學(xué)目標(biāo):1. 掌握本單元一些重點(diǎn)詞匯的寫法和用法。2. 學(xué)會(huì)自如談?wù)摬妥蓝Y儀。Step 1 RevisionAsk some students to retell the customs at the table in France in the passage in 3a.Step 2 Self checkPart 1. Fill in each bland with the correct word given. Students do the exercises by themselves at first. Then check the answers. Ask the students to comprehend the sentences and help them point out uses of some words, like “arrive (at / in) sw., spend time / money on sth , spend time / money (in) doing sth.”Part 2. Read about Fan Ling’s experience in a western restaurant. Understand the passage. Point out some key points in the passage.1. be / get used to doing sth. 習(xí)慣做某事2. begin with = start with 以….開頭3. crowd v. 擠滿,塞滿 the crowd 人群 crowded adj. 擁擠的Then students discuss about how she would solve her problem. Ask some to share their stories with others.Part 3. Complete the crossword by looking at the sentences on the left. Then check the answers.

  • 人教部編版七年級(jí)下冊(cè)名著導(dǎo)讀《海底兩萬(wàn)里》快速閱讀教案

    人教部編版七年級(jí)下冊(cè)名著導(dǎo)讀《海底兩萬(wàn)里》快速閱讀教案

    【設(shè)計(jì)意圖】這三個(gè)活動(dòng)對(duì)培養(yǎng)學(xué)生的思維能力各有不同的目的和針對(duì)性。繪制航海路線圖,講述旅途精彩故事,可以幫助學(xué)生梳理全書的故事情節(jié);寫航海日記讓學(xué)生深入到作品的情節(jié)中,對(duì)幾個(gè)主人公的形象有更深入的理解;主題辯論既讓學(xué)生對(duì)人物形象有更深入的思考,也有助于學(xué)生深入理解作品主題。三、活動(dòng)結(jié)語(yǔ)師:讀完《海底兩萬(wàn)里》,相信同學(xué)們心中一定還有很多沒(méi)有得到解答的疑問(wèn)。尼摩船長(zhǎng)的身世究竟是什么?他的親人是怎么死的?他為什么要復(fù)仇?“諾第留斯號(hào)”潛艇最后的結(jié)局是什么呢?想要解開這些謎團(tuán),請(qǐng)看凡爾納的另外兩部科幻小說(shuō)《格蘭特船長(zhǎng)的兒女》《神秘島》,它們會(huì)帶你揭開這些謎底?!驹O(shè)計(jì)意圖】本環(huán)節(jié)旨在激發(fā)學(xué)生拓展閱讀的興趣,引導(dǎo)學(xué)生課外閱讀凡爾納的另外兩部作品,擴(kuò)大學(xué)生的閱讀量。

  • 人教部編版七年級(jí)下冊(cè)寫作寫出人物的精神教案

    人教部編版七年級(jí)下冊(cè)寫作寫出人物的精神教案

    我來(lái)到書房,找到了字典,既想快點(diǎn)知曉答案,和媽媽比個(gè)勝負(fù),又想慢點(diǎn)兒,萬(wàn)一又錯(cuò)了怎么辦。我緊張地翻開字典,找到了“偌”字的讀音。天吶,我是對(duì)的,我太開心了?。ú蛔?:缺少動(dòng)作描寫,沒(méi)有展現(xiàn)出“我”的緊張。修改:我使勁地捏著字典,顫抖著雙手,慢慢地打開字典。不足2:結(jié)尾缺少人物的語(yǔ)言和神態(tài)描寫,沒(méi)有展現(xiàn)出人物開心的心理。修改:我眉飛色舞地大叫道:“天吶,我贏啦!我贏啦!”)我捧著字典,連蹦帶跳地來(lái)到媽媽面前,欣喜若狂地說(shuō):“媽媽,你想不到吧,你一個(gè)堂堂初中老師,居然敗在拼音不太好的女兒手下。哈哈,我終于報(bào)‘仇’了……”此時(shí)的我,簡(jiǎn)直比中了五百萬(wàn)還要開心一百倍。媽媽一聽便傻了眼,剛才那堅(jiān)定的神情已經(jīng)蕩然無(wú)存,媽媽連忙接過(guò)字典看了又看,生怕我看錯(cuò)了似的??吹阶值渖系淖x音,媽媽啞口無(wú)言。

  • 小學(xué)美術(shù)人教版四年級(jí)下冊(cè)《第8課我畫的動(dòng)漫形象4》教學(xué)設(shè)計(jì)說(shuō)課稿

    小學(xué)美術(shù)人教版四年級(jí)下冊(cè)《第8課我畫的動(dòng)漫形象4》教學(xué)設(shè)計(jì)說(shuō)課稿

    2學(xué)情分析可以說(shuō)動(dòng)漫卡通一直伴隨著孩子們的成長(zhǎng),每個(gè)孩子都十分喜愛(ài)看動(dòng)漫卡通,尤其是現(xiàn)在的兒童更是在動(dòng)漫卡通世界里成長(zhǎng)的一代,所以學(xué)生對(duì)動(dòng)漫卡通形象并不陌生。本課通過(guò)大量學(xué)生喜歡的動(dòng)漫卡通形象的欣賞,掌握動(dòng)漫卡通畫形象的創(chuàng)作表現(xiàn)方法。3重點(diǎn)難點(diǎn)教學(xué)重點(diǎn):感受動(dòng)漫卡通形象靈動(dòng)多變的造型之美,并體會(huì)創(chuàng)作的樂(lè)趣。教學(xué)難點(diǎn):利用學(xué)到的知識(shí),進(jìn)行動(dòng)漫卡通形象表現(xiàn)。

  • 小學(xué)美術(shù)人教版四年級(jí)下冊(cè)《第2課點(diǎn)的魅力2》教學(xué)設(shè)計(jì)說(shuō)課稿

    小學(xué)美術(shù)人教版四年級(jí)下冊(cè)《第2課點(diǎn)的魅力2》教學(xué)設(shè)計(jì)說(shuō)課稿

    一、導(dǎo)入新課上課,同學(xué)們好!今天的美術(shù)課和平時(shí)有點(diǎn)不一樣,主要有兩個(gè)方面,其一、教室里來(lái)了許多老師和我們一起來(lái)上這一堂美術(shù)課,大家用掌聲表示歡迎。其二、就是唐老師為大家?guī)?lái)了一位小伙伴,同學(xué)們肯定會(huì)喜歡上它的,大家看,它來(lái)了--展示課件動(dòng)畫圖片和播放聲音,出現(xiàn)一個(gè)小圓點(diǎn),(說(shuō)話:同學(xué)們,大家好!我的名字叫小圓點(diǎn),我喜歡穿各種色彩的衣服,我的本領(lǐng)可大啦!能大能小,位置和大小的變化還能給人產(chǎn)生不一樣的感覺(jué)!在生活中和美術(shù)作品中經(jīng)??梢砸姷轿业纳碛埃〈蠹叶挤Q我為魅力的小圓點(diǎn)呢!)

  • 小學(xué)數(shù)學(xué)人教版四年級(jí)下冊(cè)《第三課三角形的分類》教案說(shuō)課稿

    小學(xué)數(shù)學(xué)人教版四年級(jí)下冊(cè)《第三課三角形的分類》教案說(shuō)課稿

    1. 知識(shí)與技能 通過(guò)學(xué)生活動(dòng),幫助學(xué)生理解三角形按角分類的方法,掌握直角三角形、銳角三角形、鈍角三角形的概念;知道等腰三角形、等邊三角形。培養(yǎng)學(xué)生觀察,動(dòng)手操作和抽象概括的能力;發(fā)展空間觀念。2.過(guò)程與方法 使學(xué)生經(jīng)歷觀察、操作、比較、概括等過(guò)程,在分類中體會(huì)每一類三角形角的特點(diǎn);發(fā)現(xiàn)邊的特點(diǎn)。滲透集合思想。3.情感態(tài)度與價(jià)值觀 激發(fā)學(xué)生的主動(dòng)參與意識(shí),使學(xué)生感受到成功的喜悅,更增強(qiáng)學(xué)習(xí)興趣?!窘虒W(xué)重點(diǎn)】 直角三角形、銳角三角形、鈍角三角形的概念?!窘虒W(xué)難點(diǎn)】發(fā)現(xiàn)三角形角的特點(diǎn)?!窘虒W(xué)方法】啟發(fā)式教學(xué)、自主探索、合作交流、討論法、講解法?!菊n前準(zhǔn)備】多媒體【課時(shí)安排】 1課時(shí)【教學(xué)過(guò)程】(一)復(fù)習(xí)導(dǎo)入 師:說(shuō)一說(shuō)下面的角各是什么角。

  • 小學(xué)數(shù)學(xué)人教版四年級(jí)下冊(cè)《第2課三角形的特性(二)》教案說(shuō)課稿

    小學(xué)數(shù)學(xué)人教版四年級(jí)下冊(cè)《第2課三角形的特性(二)》教案說(shuō)課稿

    2.過(guò)程與方法 通過(guò)實(shí)踐操作、猜想驗(yàn)證、合作探究,經(jīng)歷發(fā)現(xiàn)“三角形任意兩邊的和大于第三邊”這一性質(zhì)的活動(dòng)過(guò)程,發(fā)展空間觀念,培養(yǎng)邏輯思維能力,體驗(yàn)“做數(shù)學(xué)”的成功。3.情感態(tài)度與價(jià)值觀 (1)發(fā)現(xiàn)生活中的數(shù)學(xué)美,會(huì)從美觀和實(shí)用的角度解決生活中的數(shù)學(xué)問(wèn)題。 (2)學(xué)會(huì)從全面、周到的角度考慮問(wèn)題。 【教學(xué)重點(diǎn)】 理解、掌握“三角形任意兩邊之和大于第三邊”的性質(zhì);理解兩點(diǎn)間的距離的含義。【教學(xué)難點(diǎn)】 引導(dǎo)探索三角形的邊的關(guān)系,并發(fā)現(xiàn)“三角形任意兩邊的和大于第三邊”的性質(zhì)?!窘虒W(xué)方法】啟發(fā)式教學(xué)、自主探索、合作交流、討論法、講解法?!菊n前準(zhǔn)備】多媒體、學(xué)具袋【課時(shí)安排】 1課時(shí)【教學(xué)過(guò)程】(一)復(fù)習(xí)導(dǎo)入 師:什么樣的圖形叫三角形?生交流:由3條線段圍成的圖形(每相鄰兩條線段的端點(diǎn)相連)叫做三角形。

  • 小學(xué)數(shù)學(xué)人教版六年級(jí)下冊(cè)《第二課成數(shù)》教案說(shuō)課稿

    小學(xué)數(shù)學(xué)人教版六年級(jí)下冊(cè)《第二課成數(shù)》教案說(shuō)課稿

    (一)復(fù)習(xí)導(dǎo)入 1. 師:同學(xué)們,上節(jié)課我們學(xué)習(xí)了折扣,你會(huì)做下面的題嗎?(課件第2張)(1)五五折表示十分之(五點(diǎn)五),也就是(55)%。 (2)一件商品打九八折出售,就是按原價(jià)的(98%)出售。(3)一件上衣原價(jià)75元,現(xiàn)在打八折售出,現(xiàn)在買這件上衣需要(60)元。(4)現(xiàn)價(jià)=(原價(jià))×(折扣)2.師:生活中的百分?jǐn)?shù)還有很多,比如說(shuō)“成數(shù)”。例如:今年我省油菜籽比去年增產(chǎn)二成。這節(jié)課我們就來(lái)學(xué)習(xí)“成數(shù)”。(板書課題:成數(shù))(課件第3張)【設(shè)計(jì)意圖】 “折扣”與“成數(shù)”雖然運(yùn)用不一樣,但解決方法大致相同,復(fù)習(xí)不僅可以起到鞏固作用,也能讓學(xué)生對(duì)新知的解決有一些鋪墊。(二)探究新知 1、探究成數(shù)的含義以及成數(shù)和百分?jǐn)?shù)的關(guān)系。(課件第4張)(1)農(nóng)業(yè)收成,經(jīng)常用成數(shù)來(lái)表示。你知道什么是成數(shù)嗎? 生1:成數(shù)表示一個(gè)數(shù)是另一個(gè)數(shù)的十分之幾,通稱“幾成”?!耙怀伞本褪鞘种?,改寫成百分?jǐn)?shù)是10%。(2)填一填。(課件第5張)“二成”就是(十分之二),改寫成百分?jǐn)?shù)是(20%);“三成五”就是(十分之三點(diǎn)五),改寫成百分?jǐn)?shù)是(35%)?!八某扇本褪牵ㄊ种狞c(diǎn)三),改寫成百分?jǐn)?shù)是(43%);“六成五”就是(十分之六點(diǎn)五),改寫成百分?jǐn)?shù)是(65%)。(3)把下面的成數(shù)改寫成百分?jǐn)?shù)。 (課件第6張)三成=(30)% 四成六=(46)% 九成九=(99)% 二成五=(25)% 一成二=(12)% 七成三=(73)%

  • 小學(xué)數(shù)學(xué)人教版六年級(jí)下冊(cè)《第三課式與方程》教案說(shuō)課稿

    小學(xué)數(shù)學(xué)人教版六年級(jí)下冊(cè)《第三課式與方程》教案說(shuō)課稿

    1.整理用字母表示數(shù)。(1)梳理知識(shí):用字母表示數(shù)量關(guān)系:師:用字母可以表示什么?生:用字母表示運(yùn)算定律用字母表示計(jì)算公式用字母表示計(jì)算方法師:你能舉例說(shuō)明嗎?生:字母表示 數(shù)量關(guān)系路程=速度×時(shí)間 s=vt總價(jià)=單價(jià)×數(shù)量 c=an工作總量=工作效率×工作時(shí)間 c=at(2)字母表示計(jì)算方法:+=(3)用字母表示計(jì)算公式。師:用字母可以表示哪些平面圖形的計(jì)算公式生:長(zhǎng)方形 周長(zhǎng) c=(a+b) ×2 面積:s=ab 正方形 周長(zhǎng) c=4a 面積:s=a2 平行四邊形 面積 s =ah三角形 面積 s=ah¸2 梯形 面積 s=(a+b)·h¸2 圓 周長(zhǎng)c=πd=2πr 面積 s=πr2(4)用字母表示運(yùn)算定律加法交換律 a+b=b+a 加法結(jié)合律 (a+b)+c=a+(b+c)乘法交換律 a×b=b×a乘法結(jié)合律 (a×b)×c=a×(b×c)乘法分配律 (a+b)×c=a×c+b×c2.在一個(gè)含有字母的式子里,數(shù)與字母、字母與字母相乘,書寫時(shí)應(yīng)注意的問(wèn)題。師:在一個(gè)含有字母的式子里,數(shù)與字母、字母與字母相乘,書寫時(shí)應(yīng)注意什么?生交流:(1)在含有字母的式子里,數(shù)和字母中間的乘號(hào)可以用“?”代替,也可以省略不寫。(2)省略乘號(hào)時(shí),應(yīng)當(dāng)把數(shù)寫在字母的前面。(3)數(shù)與數(shù)之間的乘號(hào)不能省略。加號(hào)、減號(hào)、除號(hào)都不能省略。3. 典題訓(xùn)練(1)填一填。①李奶奶家本月用電a千瓦時(shí),比上個(gè)月多用10千瓦時(shí),上個(gè)月用電( )千瓦時(shí)。②如果每千瓦時(shí)電的價(jià)格是c元,李奶奶家本月的電費(fèi)是( )元。李奶奶家銀行繳費(fèi)卡上原有215元,扣除本月電費(fèi)后,還剩( )元。③小明今年m 歲,媽媽的歲數(shù)比她的3倍少6歲。媽媽的歲數(shù)是( )歲。如果m=12,媽媽今年是( )歲。④三個(gè)連續(xù)的自然數(shù),最大的一個(gè)是n,那么最小的一個(gè)數(shù)是( )。(2)連 一 連。比a多3的數(shù) a3比a少3的數(shù) 3a3個(gè)a相加的和 a+33個(gè)a相乘的積 a-3a的3倍 a的

  • 小學(xué)數(shù)學(xué)人教版六年級(jí)下冊(cè)《第三課解比例》教案說(shuō)課稿

    小學(xué)數(shù)學(xué)人教版六年級(jí)下冊(cè)《第三課解比例》教案說(shuō)課稿

    (一)觀圖激趣、設(shè)疑導(dǎo)入 師:同學(xué)們,今天和老師一起完成一個(gè)知識(shí)大比拼的游戲,(PPT課件出示)準(zhǔn)備好了嗎?1、填空。15∶3=(  )∶(  )2∶3=(  )÷(  )0.2=(  )∶2=(  )÷62、根據(jù)比例的基本性質(zhì),把下列各比改寫為乘法等式。3:8=15:40 x:4=1:2生:準(zhǔn)備好了。師:現(xiàn)在我們開始。師:今天和老師學(xué)習(xí)怎樣解比例。(板書課題:解比例)【設(shè)計(jì)意圖】這種方法的導(dǎo)入,讓學(xué)生更快、更集中注意力奔向主題,沒(méi)有渲染的成分,簡(jiǎn)單實(shí)用。(二)探究新知1、自學(xué)解比例的意義師:閱讀教材第42頁(yè),理解什么叫做解比例。生:求比例中的未知項(xiàng)叫做解比例。教師板書:求比例中的未知項(xiàng)叫做解比例。2、學(xué)習(xí)例2,應(yīng)用比例的基本性質(zhì)解比例。(1)出示例2的PPT課件。法國(guó)巴黎的埃菲爾鐵塔高度約320 m。北京的世界公園里有一座埃菲爾鐵塔的模型,它的高度與原塔高度的比是1∶10。這座模型高多少米?(2)理解題意,弄清模型的高度∶原塔高度=1∶10。師:同學(xué)們,你是怎樣理解題目中1∶10的?生:題目中告訴我們1∶10是埃菲爾鐵塔模型的高度與原塔高度的比。師:你能根據(jù)題意寫出比例關(guān)系式嗎?生:根據(jù)題意列比例關(guān)系式:模型的高度∶原塔高度=1∶10。師:這個(gè)關(guān)系式用數(shù)字該怎樣表示?生:老師,在這個(gè)比例中我只知道三個(gè)數(shù)字,模型的高度的數(shù)量我不知道是幾呀?師:這位同學(xué)觀察得很仔細(xì),哪位同學(xué)愿意幫助他解決這個(gè)問(wèn)題?生:老師我想用字母x代替模型高度的數(shù)量,您看可以嗎?師:好的,你的想法非常的好,也很正確!師:題目中告訴我們?cè)叨仁嵌嗌?生:320 m。

  • 人教版新課標(biāo)小學(xué)數(shù)學(xué)五年級(jí)下冊(cè)圖形的變換教案2篇

    人教版新課標(biāo)小學(xué)數(shù)學(xué)五年級(jí)下冊(cè)圖形的變換教案2篇

    師:從圖1到圖2,風(fēng)車發(fā)生了怎樣的變化呢?下面請(qǐng)同學(xué)們小組合作,共同來(lái)解決報(bào)告單上提出的問(wèn)題。(1)從圖1到圖2,風(fēng)車?yán)@點(diǎn)O逆時(shí)針旋轉(zhuǎn)了___度。(2)你是怎樣判斷風(fēng)車旋轉(zhuǎn)的角度的?生小組討論。3.小組匯報(bào)(實(shí)物投影展示)(1)圖1到圖2,風(fēng)車?yán)@點(diǎn)O逆時(shí)針旋轉(zhuǎn)了90°;(2)組1,根據(jù)三角形變換的位置判斷風(fēng)車旋轉(zhuǎn)的角度;(3)組2,根據(jù)對(duì)應(yīng)的線段判斷風(fēng)車旋轉(zhuǎn)的角度;(4)組3,根據(jù)對(duì)應(yīng)的點(diǎn)判斷風(fēng)車旋轉(zhuǎn)的角度。4.小結(jié)(教師邊做小結(jié)邊演示)師:通過(guò)觀察,我們發(fā)現(xiàn)風(fēng)車旋轉(zhuǎn)后,不僅是每個(gè)三角形都繞點(diǎn)O逆時(shí)針旋轉(zhuǎn)了90°(閃爍),而且,每條線段(閃爍),每個(gè)頂點(diǎn)(閃爍),都繞點(diǎn)O逆時(shí)針旋轉(zhuǎn)了90°。5.揭示旋轉(zhuǎn)的特征和性質(zhì)

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