This section guides students to pay attention to the typical context of vocabulary use, helps students accumulate vocabulary around the key vocabulary of this unit, and uses the learned words and word chunks in different contexts to deeply understand their meaning and usage, so as to achieve the purpose of review and consolidation.The teaching design activities aim to guide students to pay attention to the typical context in which the target vocabulary is used, as well as the common vocabulary used in collocation, so that students can complete the sentence with correct words. In terms of vocabulary learning strategies, this unit focuses on cultivating students' ability to pay attention to collocation of words and to use word blocks to express meaning.For vocabulary learning, it is not enough just to know the meaning of a single word, but the most important thing is to master the common collocations of words, namely word blocks.Teachers should timely guide students to summarize common vocabulary collocation, such as verb and noun collocation, verb and preposition collocation, preposition and noun collocation, and so on.1. Guide students to understand and consolidate the meaning and usage of the vocabulary in the context, 2. Guide the students to use the unit topic vocabulary in a richer context3. Let the students sort out and accumulate the accumulated vocabulary, establishes the semantic connection between the vocabulary,4. Enable students to understand and master the vocabulary more effectivelyGuiding the Ss to use unit topic words and the sentence patterns in a richer context.
假定你是英國(guó)的Jack,打算來(lái)中國(guó)旅行,請(qǐng)你給你的中國(guó)筆友李華寫(xiě)一封信,要點(diǎn)如下:1.你的旅行計(jì)劃:北京→泰山→杭州;2.征求建議并詢問(wèn)他是否愿意充當(dāng)你的導(dǎo)游。注意:1.詞數(shù)80左右(開(kāi)頭和結(jié)尾已給出,不計(jì)入總詞數(shù));2.可以適當(dāng)增加細(xì)節(jié),以使行文連貫。參考詞匯:故宮 the Forbidden City;泰山 Mount TaiDear Li Hua,I'm glad to tell you that 'm going to visit China.First,I am planning to visit Beijing,the capitalof China,where I am looking forward to enjoying the Great Wall,the Forbidden City and somebeautiful parks.Then I intend to go to visit Mount Tai in Shandong Province.I've heard that it is one ofthe most famous mountains in China and I can't wait to enjoy the amazing sunrise there.After that,I amalso going to Hangzhou.It is said that it is a beautiful modern city with breathtaking natural sights,among which the West Lake is a well- known tourist attraction.What do you think of my travel plan? Will you act as my guide? Hope to hear from you soon.
The theme of this activity is to learn the first aid knowledge of burns. Burns is common in life, but there are some misunderstandings in manual treatment. This activity provides students with correct first aid methods, so as not to take them for granted in an emergency. This section guides students to analyze the causes of scald and help students avoid such things. From the perspective of text structure and collaborative features, the text is expository. Expository, with explanation as the main way of expression, transmits knowledge and information to readers by analyzing concepts and elaborating examples. This text arranges the information in logical order, clearly presents three parts of the content through the subtitle, accurately describes the causes, types, characteristics and first aid measures of burns, and some paragraphs use topic sentences to summarize the main idea, and the level is very clear.1. Guide students to understand the causes, types, characteristics and first aid methods of burns, through reading2. Enhance students’ ability to deal withburnss and their awareness of burns prevention3. Enable students to improve the ability to judge the types of texts accurately and to master the characteristics and writing techniques of expository texts.Guide students to understand the causes, types, characteristics and first aid methods of burns, through readingStep1: Lead in by discussing the related topic:1. What first-aid techniques do you know of ?CPR; mouth to mouth artificial respiration; the Heimlich Manoeuvre
The theme of this part is to write an article about healthy diet. Through reading and writing activities, students can accumulate knowledge about healthy diet, deepen their understanding of the theme of healthy diet, and reflect on their own eating habits. This text describes the basic principles of healthy diet. The author uses data analysis, definition, comparison, examples and other methods. It also provides a demonstration of the use of conjunctions, which provides important information reference for students to complete the next collaborative task, writing skills, vivid language materials and expressions.1. Teach Ss to learn and skillfully use the new words learned from the text.2. Develop students’ ability to understand, extract and summarize information.3. Guide students to understand the theme of healthy diet and reflect on their own eating habits.4. To guide students to analyze and understand the reading discourse from the aspects of theme content, writing structure, language expression, etc., 5. Enable Ss to write in combination with relevant topics and opinions, and to talk about their eating habits.1. Guide students to analyze and understand the reading discourse from the aspects of theme content, writing structure, language expression, etc.2. Enable them to write in combination with relevant topics and opinions, and to talk about their eating habits.3. Guide the students to use the cohesive words correctly, strengthen the textual cohesion, and make the expression fluent and the thinking clear.Step1: Warming upbrainstorm some healthy eating habits.1.Eat slowly.2.Don’t eat too much fat or sugar.3.Eat healthy food.4.Have a balanced diet.Step2: Read the passage and then sum up the main idea of each paragraph.
The theme of the listening section is " talking about scenery and culture along a journey."The part is designed to further lead the students to understand Canadian natural geography and social environment, and integrated into the cultural contrast by mentioning the long train journey from Beijing to Moscow routes. On this basis, the part activates students related travel experience, lets the student serial dialogue, guides the student to explore further the pleasure and meaning of the long journey, and Chinese and foreign cultural comparison.The part also provides a framework for the continuation of the dialogue, which is designed to provide a framework for students to successfully complete their oral expressions, and to incorporate an important trading strategy to end the dialogue naturally.1. Help students to understand and master some common English idioms in the context, and experience the expression effect of English idioms.2. Guide the students to understand the identity of different people in the listening context, and finish the dialogue according to their own experience.3. Instruct the students to use appropriate language to express surprise and curiosity about space and place in the dialogue, and master the oral strategy of ending the dialogue naturally.1. Instruct students to grasp the key information and important details of the dialogue.2. Instruct students to conduct a similar talk on the relevant topic.
The purpose of this section of vocabulary exercises is to consolidate the key words in the first part of the reading text, let the students write the words according to the English definition, and focus on the detection of the meaning and spelling of the new words. The teaching design includes use English definition to explain words, which is conducive to improving students' interest in vocabulary learning, cultivating their sense of English language and thinking in English, and making students willing to use this method to better grasp the meaning of words, expand their vocabulary, and improve their ability of vocabulary application. Besides, the design offers more context including sentences and short passage for students to practice words flexibly.1. Guide students to understand and consolidate the meaning and usage of the vocabulary in the context, 2. Guide the students to use the unit topic vocabulary in a richer context3. Let the students sort out and accumulate the accumulated vocabulary, establishes the semantic connection between the vocabulary,4. Enable students to understand and master the vocabulary more effectivelyGuiding the Ss to use unit topic words and the sentence patterns in a richer context.Step1: Read the passage about chemical burns and fill in the blanks with the correct forms of the words in the box.
The theme of this section is to learn how to make emergency calls. Students should learn how to make emergency calls not only in China, but also in foreign countries in English, so that they can be prepared for future situations outside the home.The emergency telephone number is a vital hotline, which should be the most clear, rapid and effective communication with the acute operator.This section helps students to understand the emergency calls in some countries and the precautions for making emergency calls. Through the study of this section, students can accumulate common expressions and sentence patterns in this context. 1.Help students accumulate emergency telephone numbers in different countries and learn more about first aid2.Guide the students to understand the contents and instructions of the telephone, grasp the characteristics of the emergency telephone and the requirements of the emergency telephone.3.Guide students to understand the first aid instructions of the operators.4.Enable Ss to make simulated emergency calls with their partners in the language they have learned1. Instruct students to grasp the key information and important details of the dialogue.2. Instruct students to conduct a similar talk on the relevant topic.Step1:Look and discuss:Match the pictures below to the medical emergencies, and then discuss the questions in groups.
The grammar of this unit is designed to review noun clauses. Sentences that use nouns in a sentence are called noun clauses. Nominal clauses can act as subject, object, predicate, appositive and other components in compound sentences. According to the above-mentioned different grammatical functions, nominal clauses are divided into subject clause, object clause, predicate clause and appositive clause. In this unit, we will review the three kinds of nominal clauses. Appositive clauses are not required to be mastered in the optional compulsory stage, so they are not involved.1. Guide the students to judge the compound sentences and determine the composition of the clauses in the sentence.2. Instruct students to try to learn grammar by generalizing grammar rules, controlling written practice, and semi-open oral output.3. Inspire the students to systematize the function and usage of noun clause1.Instruct students to try to learn grammar by generalizing grammar rules, controlling written practice, and semi-open oral output.2.Inspire the students to systematize the function and usage of noun clauseStep1: The teacher ask studetns to find out more nominal clauses from the reading passage and udnerline the nominal clauses.
當(dāng)孩子們由父母陪同時(shí),他們才被允許進(jìn)入這個(gè)運(yùn)動(dòng)場(chǎng)。3.過(guò)去分詞(短語(yǔ))作狀語(yǔ)時(shí)的幾種特殊情況(1)過(guò)去分詞(短語(yǔ))在句中作時(shí)間、條件、原因、讓步狀語(yǔ)時(shí),相當(dāng)于對(duì)應(yīng)的時(shí)間、條件、原因及讓步狀語(yǔ)從句。Seen from the top of the mountain (=When it is seen from the top of the mountain), the whole town looks more beautiful.從山頂上看,整個(gè)城市看起來(lái)更美了。Given ten more minutes (=If we are given ten more minutes), we will finish the work perfectly.如果多給十分鐘,我們會(huì)完美地完成這項(xiàng)工作。Greatly touched by his words (=Because she was greatly touched by his words), she was full of tears.由于被他的話深深地感動(dòng),她滿眼淚花。Warned of the storm (=Though they were warned of the storm), the farmers were still working on the farm.盡管被警告了風(fēng)暴的到來(lái),但農(nóng)民們?nèi)栽谵r(nóng)場(chǎng)干活。(2)過(guò)去分詞(短語(yǔ))在句中作伴隨、方式等狀語(yǔ)時(shí),可改為句子的并列謂語(yǔ)或改為并列分句。The teacher came into the room, followed by two students (=and was followed by two students).后面跟著兩個(gè)學(xué)生,老師走進(jìn)了房間。He spent the whole afternoon, accompanied by his mom(=and was accompanied by his mom).他由母親陪著度過(guò)了一整個(gè)下午。
The newspaper reported more than 100 people had been killed in the thunderstorm.報(bào)紙報(bào)道說(shuō)有一百多人在暴風(fēng)雨中喪生。(2)before、when、by the time、until、after、once等引導(dǎo)的時(shí)間狀語(yǔ)從句的謂語(yǔ)是一般過(guò)去時(shí),以及by、before后面接過(guò)去的時(shí)間時(shí),主句動(dòng)作發(fā)生在從句的動(dòng)作或過(guò)去的時(shí)間之前且表示被動(dòng)時(shí),要用過(guò)去完成時(shí)的被動(dòng)語(yǔ)態(tài)。By the time my brother was 10, he had been sent to Italy.我弟弟10歲前就已經(jīng)被送到意大利了。Tons of rice had been produced by the end of last month. 到上月底已生產(chǎn)了好幾噸大米。(3) It was the first/second/last ... time that ...句中that引導(dǎo)的定語(yǔ)從句中,主語(yǔ)與謂語(yǔ)構(gòu)成被動(dòng)關(guān)系時(shí),要用過(guò)去完成時(shí)的被動(dòng)語(yǔ)態(tài)。It was the first time that I had seen the night fact to face in one and a half years. 這是我一年半以來(lái)第一次親眼目睹夜晚的景色。(4)在虛擬語(yǔ)氣中,條件句表示與過(guò)去事實(shí)相反,且主語(yǔ)與謂語(yǔ)構(gòu)成被動(dòng)關(guān)系時(shí),要用過(guò)去完成時(shí)的被動(dòng)語(yǔ)態(tài)。If I had been instructed by him earlier, I would have finished the task.如果我早一點(diǎn)得到他的指示,我早就完成這項(xiàng)任務(wù)了。If I had hurried, I wouldn't have missed the train.如果我快點(diǎn)的話,我就不會(huì)誤了火車。If you had been at the party, you would have met him. 如果你去了晚會(huì),你就會(huì)見(jiàn)到他的。
The discourse explores the link between food and culture from a foreign’s perspective and it records some authentic Chinese food and illustrates the cultural meaning, gerography features and historic tradition that the food reflects. It is aimed to lead students to understand and think about the connection between food and culture. While teaching, the teacher should instruct students to find out the writing order and the writer’s experieces and feelings towards Chinese food and culture.1.Guide the students to read the text, sort out the information and dig out the topic.2.Understand the cultural connotation, regional characteristics and historical tradition of Chinese cuisine3.Understand and explore the relationship between food and people's personality4.Guide the students to use the cohesive words in the text5.Lead students to accurately grasp the real meaning of the information and improve the overall understanding ability by understanding the implied meaning behind the text.1. Enable the Ss to understand the structure and the writing style of the passage well.2. Lead the Ss to understand and think further about the connection between food and geography and local character traits.Step1: Prediction before reading. Before you read, look at the title, and the picture. What do you think this article is about?keys:It is about various culture and cuisine about a place or some countries.
You have no excuse for not going.你沒(méi)有理由不去。He was punished for not having finished his homework.他因未完成作業(yè)而受到懲罰。2.動(dòng)詞ing形式復(fù)合結(jié)構(gòu)由物主代詞或人稱代詞賓格、名詞所有格或普通格加動(dòng)詞ing,即“sb./sb.'s+doing”構(gòu)成。動(dòng)詞ing形式的復(fù)合結(jié)構(gòu)實(shí)際上是給動(dòng)詞ing形式加了一個(gè)邏輯主語(yǔ)。動(dòng)詞ing形式的復(fù)合結(jié)構(gòu)有四種形式:①形容詞性物主代詞+動(dòng)詞ing②名詞所有格+動(dòng)詞ing③代詞賓格+動(dòng)詞ing④名詞+動(dòng)詞ingHer coming to help encouraged all of us.她來(lái)幫忙鼓舞了我們所有人。The baby was made awake by the door suddenly shutting.這個(gè)嬰兒被突然的關(guān)門聲吵醒了。Can you imagine him/Jack cooking at home?你能想象他/杰克在家做飯的樣子嗎?無(wú)生命名詞無(wú)論是作主語(yǔ)還是作賓語(yǔ)都不能用第②種形式。Tom's winning first prize last year impressed me a lot.湯姆去年得了一等獎(jiǎng)使我印象深刻。Do you mind my/me/Jack's/Jack leaving now?你介意我/杰克現(xiàn)在離開(kāi)嗎?Excuse me for my not coming on time.很抱歉我沒(méi)能按時(shí)來(lái)。His father's being ill made him worried.他父親病了,他很擔(dān)心。We are looking forward to the singer's/the singer to give us a concert.我們盼望著這位歌手來(lái)給我們舉辦一場(chǎng)演唱會(huì)。
四、說(shuō)教學(xué)方法: 在教學(xué)活動(dòng)中,我積極樹(shù)立“以學(xué)生為主體”的教學(xué)思想,發(fā)揮學(xué)生的主動(dòng)精神,使之成為學(xué)習(xí)的主人。因此,我設(shè)計(jì)的教法是:創(chuàng)設(shè)情境,自主探究、朗讀感悟、啟發(fā)想象等方法,引導(dǎo)學(xué)生主動(dòng)參與到學(xué)習(xí)活動(dòng)中。 我們常說(shuō):“現(xiàn)代的文盲不是不識(shí)字的人,而是沒(méi)有掌握學(xué)習(xí)方法的人”,因而在教學(xué)中要特別重視學(xué)法的指導(dǎo)。學(xué)生對(duì)神話故事興趣濃厚,尤其對(duì)神話故事中的英雄人物更是情有獨(dú)鐘,有較強(qiáng)的表達(dá)欲望。為此,我設(shè)計(jì)的學(xué)法是:采用自讀自悟,嘗試探究。抓住文本中的重點(diǎn)詞句,讀、說(shuō)、講多種學(xué)習(xí)方式相結(jié)合,在老師的引導(dǎo)下主動(dòng)地富有個(gè)性地學(xué)習(xí)。
第二課時(shí) (一)、導(dǎo)入:中國(guó)古代神話傳說(shuō)中的女?huà)z賦予人類生命,又為了人類幸福,歷盡辛苦。而在古希臘神話故事中,也有一位帶給人類幸福和光明的神,還記得他是誰(shuí)嗎?開(kāi)啟神話故事的窗口,激發(fā)閱讀期待,激起學(xué)生對(duì)神話故事一種美的向往之情。 (二)、復(fù)習(xí)生詞,學(xué)寫(xiě)生字通過(guò)分層設(shè)計(jì)復(fù)習(xí)詞語(yǔ),既使學(xué)生再現(xiàn)所學(xué)知識(shí),又為學(xué)習(xí)新知識(shí)掃除障礙,重點(diǎn)強(qiáng)調(diào)“臟”是個(gè)多音字。指導(dǎo)書(shū)寫(xiě):重點(diǎn)指導(dǎo):“膝”“焰”“敗”讓學(xué)生整體觀察字的特點(diǎn),找出每個(gè)字的書(shū)寫(xiě)特點(diǎn),力求將字寫(xiě)正確,寫(xiě)美觀,同時(shí)注重書(shū)寫(xiě)反饋。(三)、直入重點(diǎn),感悟“英雄”形象1采用大問(wèn)題情境下的板塊式教學(xué)模式,讓學(xué)生默讀課文,思考:你從哪些詞句中感受到了普羅米修斯是一位英雄的?找一找,畫(huà)一畫(huà),把感受寫(xiě)一寫(xiě)。然后檢測(cè)學(xué)生對(duì)課文內(nèi)容的理解,之后對(duì)本課進(jìn)行深入的學(xué)習(xí)。
[活動(dòng)一]導(dǎo)入:利用多媒體課件展示一些電影海報(bào),從漂亮的海報(bào)引入今天所要學(xué)習(xí)的新單詞。師生活動(dòng):師問(wèn):What kind of movies are they?引出單詞:comedy thriller action movie documentary[設(shè)計(jì)意圖]通過(guò)多媒體給學(xué)生以直觀感受,熟悉的海報(bào)畫(huà)面使學(xué)生興趣大增,激發(fā)求知欲,順利進(jìn)入新課。[活動(dòng)二](1)演示《三槍》海報(bào)師問(wèn):What kind of movies is it? What’s his name?Yes,he’s Xiao Shenyang.Do you like him?....Do you know his English name?結(jié)論:I guess it’s a comedy.[設(shè)計(jì)意圖]從大家喜愛(ài)的喜劇名星入手,讓學(xué)生辨認(rèn)電影類型,鮮亮的海報(bào)色彩,夸張的人物造型,使課堂氣氛大增。[活動(dòng)三]師生活動(dòng):Match these pictures with the mew words.[設(shè)計(jì)意圖]運(yùn)用所學(xué)英語(yǔ)單詞,說(shuō)出這些電影的類型。活動(dòng)中充分運(yùn)用, Do you want to go to this movies?這個(gè)一般疑問(wèn)句,為下面小組活動(dòng)打基礎(chǔ)。[活動(dòng)四]1b師生活動(dòng):Please listen and circle the kinds of movies you hear.[活動(dòng)五]1c結(jié)對(duì)活動(dòng):看例子,讓學(xué)生依照例子兩人一組做下面的對(duì)話。Sample:A:Do you want to go to a movie?B:Yes,I do,I want to see a comedy.[設(shè)計(jì)意圖]充分練習(xí)此對(duì)話,熟練掌握want to do 句型,句子中多讓學(xué)生使用第三人稱,正確掌握語(yǔ)法知識(shí)。
該活動(dòng)是為了加深學(xué)生對(duì)字母順序的記憶。并在此同時(shí)學(xué)唱字母歌。要求活動(dòng)前準(zhǔn)備好火車頭圖案一個(gè)及字母歌磁帶。在學(xué)生唱字母歌的同時(shí),教師播放磁帶。Arrive at the palace.( 進(jìn)宮)到站了,字母客人經(jīng)過(guò)一條由三張課桌壘成的地道后,來(lái)到一塊寫(xiě)有“請(qǐng)過(guò)字母認(rèn)讀關(guān)”的牌前,一名交通警(由教師或?qū)W生扮演)出示字母卡片,讓其逐個(gè)認(rèn)讀1—3個(gè)字母。凡認(rèn)讀過(guò)了關(guān)的到指定地點(diǎn)排好隊(duì)。不能正確認(rèn)讀的經(jīng)指導(dǎo)認(rèn)讀正確后去指定地點(diǎn),準(zhǔn)備上賓館。該活動(dòng)旨在訓(xùn)練字母的認(rèn)讀和發(fā)音。要求事先準(zhǔn)備一塊 “請(qǐng)過(guò)字母認(rèn)讀關(guān)”的標(biāo)牌。Go to ABC Hotel. (上賓館)已進(jìn)城上賓館的客人須在ABC Hotel(字母賓館)內(nèi)按編號(hào)拿取房門鑰匙方可入內(nèi)。這時(shí)帶頭飾大寫(xiě)A卡者拿取小寫(xiě)a卡,帶頭飾大寫(xiě)B(tài)卡者拿取小寫(xiě)b卡,其他人均尋找并取走相應(yīng)的小寫(xiě)字母卡。
2、學(xué)習(xí)策略:(1)通過(guò)Disscussing, Classifying and Guessing等形式多樣的活動(dòng),促使學(xué)生運(yùn)用認(rèn)知策略進(jìn)行有效地學(xué)習(xí)。(2)在與同學(xué)合作完成任務(wù)的活動(dòng)中主動(dòng)探究和學(xué)習(xí)語(yǔ)言;并運(yùn)用知識(shí)內(nèi)在規(guī)律幫助記憶、鞏固知識(shí)。三、課時(shí)結(jié)構(gòu)為了能較好地 實(shí)現(xiàn)既定的教學(xué)目標(biāo),結(jié)合本單元教學(xué)內(nèi)容和學(xué)生的學(xué)習(xí)規(guī)律,將本單元授課時(shí)定為四課時(shí)。Period 1 Section A 1a /1b /1c /2a /2b.Period 2 Section A 2c /3 /4 .Period 3 Section B 1a /1b /2a /2b /2c /3a /3b /3c /4a/4b.Period 4 Summing up Sections A and Band the grammar.四、教學(xué)過(guò)程設(shè)計(jì)Period One(第一課時(shí))一、教學(xué)目標(biāo)1.知識(shí)目標(biāo):1)單詞:do, don’t, does, doesn’t, strawberries, like, have, hamburgers, orange, tomatoes,ice-cream,broccoli,salad,French fries, bananas.2)句型:Do you like bananas?Yes, I do. \ No, I don’t.2.能力目標(biāo):通過(guò)學(xué)習(xí)本課,學(xué)生能夠用英語(yǔ)互相討論喜歡與不喜歡的食品。3.情感目標(biāo):討論美食,享受生活美味,提倡健康合理膳食。二、教學(xué)重點(diǎn):掌握關(guān)于食物的詞匯。三、教學(xué)難點(diǎn):學(xué)會(huì)使用交際用語(yǔ)Do you like bananas?Yes,I do.\ No, I don’t.四、教學(xué)設(shè)計(jì):Step1.通過(guò)讓學(xué)生猜冰箱里有哪些食物的形式,導(dǎo)出新的單詞。同時(shí)讓全體學(xué)生拼讀每個(gè)單詞、讓個(gè)別學(xué)生將單詞寫(xiě)到黑板上。
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。
然后我讓自主嘗試探索末尾有0有乘法,然后讓學(xué)生自己上臺(tái)來(lái)給大家展示各自的算法,并討論比較那種算法更簡(jiǎn)便,從而總結(jié)出末尾有0的乘法列豎式的簡(jiǎn)便方法。為了解決這節(jié)課的重點(diǎn)和難點(diǎn),我在這個(gè)環(huán)節(jié)里又有針對(duì)性的設(shè)計(jì)了兩個(gè)練習(xí),一個(gè)是0和非0的對(duì)位,還有一個(gè)是積末尾補(bǔ)0。在教學(xué)因數(shù)中間有0的乘法,因?yàn)閷W(xué)生有了前面的基礎(chǔ),所以我直接讓學(xué)生在兩個(gè)問(wèn)題中選擇一個(gè)解決。重點(diǎn)強(qiáng)調(diào)了因數(shù)中間0不能漏乘。在練習(xí)方面,我設(shè)計(jì)了看誰(shuí)的眼睛亮,通過(guò)找錯(cuò)誤,學(xué)生練習(xí)時(shí),老師觀察到有共性的的錯(cuò)誤,通過(guò)視頻展示臺(tái),讓學(xué)生來(lái)尋找錯(cuò)誤,再次突破本課的重點(diǎn)。一題是360×25因數(shù)末數(shù)一共有一個(gè)0,而積的末尾應(yīng)該有三個(gè)0。讓學(xué)生進(jìn)行討論,再一次讓學(xué)生體會(huì)了積末尾0個(gè)數(shù)確定的方法。在鞏固和拓展聯(lián)系環(huán)節(jié),設(shè)計(jì)了闖關(guān)游戲,先是基本的計(jì)算練習(xí),接著是因數(shù)末尾0個(gè)數(shù)的判斷和解決問(wèn)題的聯(lián)系,通過(guò)練習(xí),鞏固豎式的簡(jiǎn)便寫(xiě)法,提高學(xué)生的計(jì)算能力。
(三)聯(lián)系生活實(shí)際,學(xué)會(huì)運(yùn)用數(shù) 在學(xué)生認(rèn)識(shí)了1—5各數(shù)以后,設(shè)計(jì)游戲,讓學(xué)生在自己身上,教室里,家里找一找,數(shù)一數(shù),并用學(xué)過(guò)的數(shù)說(shuō)一句話. 這樣就讓學(xué)生把生活實(shí)際與數(shù)學(xué)較好的聯(lián)系起來(lái),學(xué)會(huì)在生活中運(yùn)用數(shù)學(xué)解決問(wèn)題. (四)動(dòng)手操作圓片,學(xué)會(huì)比較數(shù)的大小 1,認(rèn)識(shí)數(shù)的意義以后,讓學(xué)生自己擺圓片,擺一擺,比一比,哪個(gè)數(shù)大,你是怎么想的 滲透了自然數(shù)的計(jì)算單位和相鄰兩個(gè)自然數(shù)相差1. 2,認(rèn)識(shí)數(shù)的大小以后,進(jìn)行猜數(shù)游戲,如5的前面是幾 3的后面是幾 還有可能是幾 通過(guò)反復(fù)練習(xí),學(xué)生較好的掌握了數(shù)的大小比較這一知識(shí)點(diǎn). 3,最后學(xué)習(xí)寫(xiě)數(shù).寫(xiě)數(shù)是本堂課的另一個(gè)重點(diǎn),教師要培養(yǎng)學(xué)生良好的寫(xiě)字習(xí)慣.學(xué)生對(duì)1——5各數(shù)早已很熟悉了,主要是引導(dǎo)學(xué)生規(guī)矩,工整的寫(xiě)數(shù).這一教學(xué)環(huán)節(jié)就要充分利用電腦軟件的直觀性,清楚的顯示1——5各數(shù)運(yùn)筆的軌跡,先讓學(xué)生觀察,感知,再通過(guò)描紅,獨(dú)立書(shū)寫(xiě)達(dá)到預(yù)期的效果.