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統(tǒng)編版三年級(jí)語文上第12課總也倒不了的老屋教學(xué)設(shè)計(jì)教案

  • 新人教版高中英語選修2Unit 2 Learning about Language教學(xué)設(shè)計(jì)

    新人教版高中英語選修2Unit 2 Learning about Language教學(xué)設(shè)計(jì)

    The activity theme of this section is to design various activities around the key words in the first text. Therefore, the activities require students to pay attention to the spelling of words. On the other hand, let students grasp the meaning of words more accurately through sentences and short texts. This kind of teaching design also helps to improve the ability of using English thinking.1. Cultivating students' ability to use word formation to induce and memorize vocabulary, and the ability to use lexical chunks to express meaning.2. Guide the students to think independently and use the correct form of words to complete sentences3. Cultivate students' habit of using lexical chunks to express language completely, guide students to draw words in sentences quickly, pay attention to word collocation, so as to accumulate more authentic expressions4. Instruct students to create sentences with the chunks.1. Enable students to use the language points in the real situation or specific contexts flexibly and appropriately.2. Guiding the Ss to use unit topic words and the sentence patterns in a richer context.Step1: Think of a word that best fits each definition.1. to remember sth2.to accept, admit, or recognize sth or the truth/existence of sth3. the process of changing sth or yourself to suit a new situation4 .to make sb feel less worried or unhappy5. a strong desire to achieve sth

  • 新人教版高中英語選修2Unit 5 Reading for writing教學(xué)設(shè)計(jì)

    新人教版高中英語選修2Unit 5 Reading for writing教學(xué)設(shè)計(jì)

    你校英語報(bào)計(jì)劃出版一期急救常識(shí)專刊,現(xiàn)面向全校學(xué)生公開征集稿件,你有意參加。請(qǐng)你根據(jù)下面提示內(nèi)容,用英語寫一篇短文,介紹在車禍現(xiàn)場(chǎng)對(duì)傷者進(jìn)行急救的方法和步驟。1.確?,F(xiàn)場(chǎng)的安全;2.詢問傷者,確保其呼吸正常;3.檢查傷口,如流血?jiǎng)t應(yīng)采取止血措施;4.如需急救,確保其處于康復(fù)位置。注意:1.詞數(shù)80左右;2.可以適當(dāng)增加細(xì)節(jié),以使行文連貫。參考詞匯:康復(fù)位置 recovery positionAs we all know, having a knowledge of first aid can make a great difference in our daily life. If a traffic accident happens and someone is injured, the following steps can be used to treat the injured.In the first place, we should make sure that the accident scene is safe so that we won’t get hurt. We should ask the injured person if he is OK, and see if he is breathing. What’s more, we should check for cuts and wounds. If he is bleeding badly, it is vital that we should try to stop the bleeding by applying pressure to the injury. This is because if a person loses too much blood, he may die. If necessary, take the injured person to the hospital as soon as possible.Do remember: when giving first aid, please be sure to place the person in a recovery position.

  • 新人教版高中英語選修2Unit 2 Reading and thinking教學(xué)設(shè)計(jì)

    新人教版高中英語選修2Unit 2 Reading and thinking教學(xué)設(shè)計(jì)

    Her tutor told her to acknowledge __________ other people had said if she cited their ideas, and advised her _______(read) lots of information in order to form __________wise opinion of her own.Now halfway __________ her exchange year, Xie Lei felt much more at home in the UK. She said __________ (engage) in British culture had helped and that she had been__________ (involve) in social activities. She also said while learning about business, she was acting as a cultural messenger __________(build) a bridge between the two countries. keys:Xie Lei, a 19­year­old Chinese student, said goodbye to her family and friends in China and boarded (board) a plane for London six months ago in order to get a business qualification. She was ambitious(ambition) to set up a business after graduation. It was the first time that she had left (leave) home.At first, Xie Lei had to adapt to life in a different country. She chose to live with a host family, who can help with her adaptation (adapt) to the new culture. When she missed home, she felt comforted (comfort) to have a second family. Also Xie Lei had to satisfy academic requirements. Her tutor told her to acknowledge what other people had said if she cited their ideas, and advised her to read lots of information in order to form a wise opinion of her own.Now halfway through her exchange year, Xie Lei felt much more at home in the UK. She said engaging (engage) in British culture had helped and that she had been involved (involve) in social activities. She also said while learning about business, she was acting as a cultural messenger building a bridge between the two countries.

  • 新人教版高中英語選修2Unit 3 Reading for writing教學(xué)設(shè)計(jì)

    新人教版高中英語選修2Unit 3 Reading for writing教學(xué)設(shè)計(jì)

    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.

  • 新人教版高中英語選修2Unit 2 Reading for writing教學(xué)設(shè)計(jì)

    新人教版高中英語選修2Unit 2 Reading for writing教學(xué)設(shè)計(jì)

    The theme of this section is to express people's views on studying abroad. With the continuous development of Chinese economic construction, especially the general improvement of people's living standards, the number of Chinese students studying abroad at their own expense is on the rise. Many students and parents turn their attention to the world and regard studying abroad as an effective way to improve their quality, broaden their horizons and master the world's advanced scientific knowledge, which is very important for the fever of going abroad. Studying abroad is also an important decision made by a family for their children. Therefore, it is of great social significance to discuss this issue. The theme of this section is the column discussion in the newspaper: the advantages and disadvantages of studying abroad. The discourse is about two parents' contribution letters on this issue. They respectively express their own positions. One thinks that the disadvantages outweigh the advantages, and the other thinks that the advantages outweigh the disadvantages. The two parents' arguments are well founded and logical. It is worth noting that the two authors do not express their views on studying abroad from an individual point of view, but from a national or even global point of view. These two articles have the characteristics of both letters and argumentative essays1.Guide the students to read these two articles, and understand the author's point of view and argument ideas2.Help the students to summarize the structure and writing methods of argumentative writing, and guides students to correctly understand the advantages and disadvantages of studying abroad3.Cultivate students' ability to analyze problems objectively, comprehensively and deeply

  • 新人教版高中英語選修2Unit 3 Using langauge-Listening教學(xué)設(shè)計(jì)

    新人教版高中英語選修2Unit 3 Using langauge-Listening教學(xué)設(shè)計(jì)

    1. How is Hunan cuisine somewhat different from Sichuan cuisine?The heat in Sichuan cuisine comes from chilies and Sichuan peppercorns. Human cuisine is often hotter and the heat comes from just chilies.2.What are the reasons why Hunan people like spicy food?Because they are a bold people. But many Chinese people think that hot food helps them overcome the effects of rainy or wet weather.3.Why do so many people love steamed fish head covered with chilies?People love it because the meat is quite tender and there are very few small bones.4.Why does Tingting recommend bridge tofu instead of dry pot duck with golden buns?Because bridge tofu has a lighter taste.5 .Why is red braised pork the most famous dish?Because Chairman Mao was from Hunan, and this was his favorite food.Step 5: Instruct students to make a short presentation to the class about your choice. Use the example and useful phrases below to help them.? In groups of three, discuss what types of restaurant you would like to take a foreign visitor to, and why. Then take turns role-playing taking your foreign guest to the restaurant you have chosen. One of you should act as the foreign guest, one as the Chinese host, and one as the waiter or waitress. You may start like this:? EXAMPLE? A: I really love spicy food, so what dish would you recommend?? B: I suggest Mapo tofu.? A: Really ? what's that?

  • 新人教版高中英語選修2Unit 4 Learning about Language教學(xué)設(shè)計(jì)

    新人教版高中英語選修2Unit 4 Learning about Language教學(xué)設(shè)計(jì)

    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.

  • 新人教版高中英語選修2Unit 4 Reading for writing教學(xué)設(shè)計(jì)

    新人教版高中英語選修2Unit 4 Reading for writing教學(xué)設(shè)計(jì)

    假定你是英國(guó)的Jack,打算來中國(guó)旅行,請(qǐng)你給你的中國(guó)筆友李華寫一封信,要點(diǎn)如下:1.你的旅行計(jì)劃:北京→泰山→杭州;2.征求建議并詢問他是否愿意充當(dāng)你的導(dǎo)游。注意:1.詞數(shù)80左右(開頭和結(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.

  • 新人教版高中英語選修2Unit 4 Using langauge-Listening教學(xué)設(shè)計(jì)

    新人教版高中英語選修2Unit 4 Using langauge-Listening教學(xué)設(shè)計(jì)

    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.

  • 新人教版高中英語選修2Unit 5 Learning about Language教學(xué)設(shè)計(jì)

    新人教版高中英語選修2Unit 5 Learning about Language教學(xué)設(shè)計(jì)

    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.

  • 新人教版高中英語選修2Unit 5 Reading and thinking教學(xué)設(shè)計(jì)

    新人教版高中英語選修2Unit 5 Reading and thinking教學(xué)設(shè)計(jì)

    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

  • 新人教版高中英語選修2Unit 5 Using langauge-Listening教學(xué)設(shè)計(jì)

    新人教版高中英語選修2Unit 5 Using langauge-Listening教學(xué)設(shè)計(jì)

    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.

  • 人教部編版語文九年級(jí)上冊(cè)周總理,你在哪里教案

    人教部編版語文九年級(jí)上冊(cè)周總理,你在哪里教案

    預(yù)設(shè)1:周總理,您的一生是奮斗的一生,辛勤勞碌的一生,是為人民服務(wù)的一生。您的無私給我們以無限的幸福!我們要向您學(xué)習(xí),早立志,立大志。預(yù)設(shè)2:現(xiàn)在的我們要勤奮學(xué)習(xí),全面發(fā)展,掌握真才實(shí)學(xué),努力成為建設(shè)偉大祖國(guó)的有用之才,做合格的建設(shè)者和接班人。千言萬語化為一句話,我們想念你!六、課堂檢測(cè),當(dāng)堂反饋要求學(xué)生當(dāng)堂做完下列題目,師生再共同訂正,看看還有哪些知識(shí)沒有掌握,教師及時(shí)要求學(xué)生鞏固。七、知識(shí)遷移,拓展探究1.要求學(xué)生當(dāng)堂閱讀《一件珍貴的襯衫》,做完下列題目,師生再共同訂正,看看還有那些知識(shí)沒有掌握,教師及時(shí)要求學(xué)生鞏固。2.要求學(xué)生閱讀《南瓜·茄子·小雞》,完成下列題目,教師講解訂正,發(fā)現(xiàn)問題,教師糾正。八、課后延伸,布置作業(yè)1.背誦這首詩歌。2.收集周恩來的名人軼事,做好積累。

  • 小學(xué)數(shù)學(xué)北師大版三年級(jí)上冊(cè)《第五課里程表(二)》教案說課稿

    小學(xué)數(shù)學(xué)北師大版三年級(jí)上冊(cè)《第五課里程表(二)》教案說課稿

    (一)觀圖激趣、設(shè)疑導(dǎo)入 1.出示課件-情境圖師:上節(jié)課我們初步學(xué)習(xí)了里程表的知識(shí),這節(jié)課我們接著來研究里程表中的數(shù)學(xué)問題。板書課題:里程表(二)師:淘氣的叔叔是出租車司機(jī)。淘氣為了記錄叔叔每天跑的路程,淘氣在叔叔星期一早上出車時(shí),里程表的讀數(shù)是35千米。淘氣記錄了叔叔周一至周五每天回家時(shí)的里程表讀數(shù)。(課件展示里程表)。(二)探究新知1.例1(1)師:請(qǐng)同學(xué)們認(rèn)真觀看淘氣記錄的叔叔的周一到周五的里程表,想一想,說一說你知道了哪些數(shù)學(xué)信息?生:我發(fā)現(xiàn)了叔叔周一行了160千米。 師:同學(xué)們他說找到數(shù)學(xué)信息對(duì)嗎?生:160千米不是星期一的行駛里程,應(yīng)該是星期一晚上里程表上的讀數(shù)。 星期二里程表上的讀數(shù)是350,。生:。。。。師:同學(xué)們找的數(shù)學(xué)信息非常多,非常全面。(2)小組討論交流:淘氣根據(jù)題意畫了一個(gè)圖,你看懂了嗎?與同伴說一說。

  • 部編版語文七年級(jí)下冊(cè)《老山界 》教案

    部編版語文七年級(jí)下冊(cè)《老山界 》教案

    用巨人矗立比喻眼前的山峰;用一口井比喻山谷,既突出了山勢(shì)的險(xiǎn)峻和連綿,又暗示了紅軍的艱難處境?!按Aⅰ保蜗蟮恼f明困難像攔路虎阻擋在面前,但是直立、高聳的老山界阻擋不了紅軍北上抗日的決心,也改變不了他們的長(zhǎng)征必勝的信念。“極遠(yuǎn)的又是極近的,極洪大的又是極細(xì)切的,像春蠶在咀嚼桑葉,像野馬在平原上奔馳,像山泉在嗚咽,像波濤在澎湃。” 用了什么修辭手法?寫出了作者怎樣的感受?“像春蠶在咀嚼桑葉”時(shí)連續(xù)不斷的細(xì)微聲音,比喻戰(zhàn)士們輕細(xì)的話語聲,說明戰(zhàn)士們被凍醒次數(shù)之多;“野馬奔馳”寫半夜山風(fēng)之大,又喻寒風(fēng)刺骨;“山泉嗚咽”用擬人化手法喻山泉時(shí)斷時(shí)續(xù)又暗指山勢(shì)崎嶇;“波濤澎湃”形容林木被風(fēng)刮動(dòng)的聲音。人聲和大自然的聲音交織在一起,烘托出夜色之深,夜景之美,透露出勃勃生機(jī),洋溢著革命樂觀主義精神。非常形象地寫出山景之美,表現(xiàn)紅軍戰(zhàn)士的樂觀情懷。

  • 人教A版高中數(shù)學(xué)必修二總體離散程度的估計(jì)教學(xué)設(shè)計(jì)

    人教A版高中數(shù)學(xué)必修二總體離散程度的估計(jì)教學(xué)設(shè)計(jì)

    問題二:上述問題中,甲、乙的平均數(shù)、中位數(shù)、眾數(shù)相同,但二者的射擊成績(jī)存在差異,那么,如何度量這種差異呢?我們可以利用極差進(jìn)行度量。根據(jù)上述數(shù)據(jù)計(jì)算得:甲的極差=10-4=6 乙的極差=9-5=4極差在一定程度上刻畫了數(shù)據(jù)的離散程度。由極差發(fā)現(xiàn)甲的成績(jī)波動(dòng)范圍比乙的大。但由于極差只使用了數(shù)據(jù)中最大、最小兩個(gè)值的信息,所含的信息量很少。也就是說,極差度量出的差異誤差較大。問題三:你還能想出其他刻畫數(shù)據(jù)離散程度的辦法嗎?我們知道,如果射擊的成績(jī)很穩(wěn)定,那么大多數(shù)的射擊成績(jī)離平均成績(jī)不會(huì)太遠(yuǎn);相反,如果射擊的成績(jī)波動(dòng)幅度很大,那么大多數(shù)的射擊成績(jī)離平均成績(jī)會(huì)比較遠(yuǎn)。因此,我們可以通過這兩組射擊成績(jī)與它們的平均成績(jī)的“平均距離”來度量成績(jī)的波動(dòng)幅度。

  • 人教A版高中數(shù)學(xué)必修二總體取值規(guī)律的估計(jì)教學(xué)設(shè)計(jì)

    人教A版高中數(shù)學(xué)必修二總體取值規(guī)律的估計(jì)教學(xué)設(shè)計(jì)

    可以通過下面的步驟計(jì)算一組n個(gè)數(shù)據(jù)的第p百分位數(shù):第一步:按從小到大排列原始數(shù)據(jù);第二步:計(jì)算i=n×p%;第三步:若i不是整數(shù),而大于i的比鄰整數(shù)位j,則第p百分位數(shù)為第j項(xiàng)數(shù)據(jù);若i是整數(shù),則第p百分位數(shù)為第i項(xiàng)與第i+1項(xiàng)的平均數(shù)。我們?cè)诔踔袑W(xué)過的中位數(shù),相當(dāng)于是第50百分位數(shù)。在實(shí)際應(yīng)用中,除了中位數(shù)外,常用的分位數(shù)還有第25百分位數(shù),第75百分位數(shù)。這三個(gè)分位數(shù)把一組由小到大排列后的數(shù)據(jù)分成四等份,因此稱為四分位數(shù)。其中第25百分位數(shù)也稱為第一四分位數(shù)或下四分位數(shù)等,第75百分位數(shù)也稱為第三四分位數(shù)或上四分位數(shù)等。另外,像第1百分位數(shù),第5百分位數(shù),第95百分位數(shù),和第99百分位數(shù)在統(tǒng)計(jì)中也經(jīng)常被使用。例2、根據(jù)下列樣本數(shù)據(jù),估計(jì)樹人中學(xué)高一年級(jí)女生第25,50,75百分位數(shù)。

  • 人教A版高中數(shù)學(xué)必修二總體集中趨勢(shì)的估計(jì)教學(xué)設(shè)計(jì)

    人教A版高中數(shù)學(xué)必修二總體集中趨勢(shì)的估計(jì)教學(xué)設(shè)計(jì)

    (2)平均數(shù)受數(shù)據(jù)中的極端值(2個(gè)95)影響較大,使平均數(shù)在估計(jì)總體時(shí)可靠性降低,10天的用水量有8天都在平均值以下。故用中位數(shù)來估計(jì)每天的用水量更合適。1、樣本的數(shù)字特征:眾數(shù)、中位數(shù)和平均數(shù);2、用樣本頻率分布直方圖估計(jì)樣本的眾數(shù)、中位數(shù)、平均數(shù)。(1)眾數(shù)規(guī)定為頻率分布直方圖中最高矩形下端的中點(diǎn);(2)中位數(shù)兩邊的直方圖的面積相等;(3)頻率分布直方圖中每個(gè)小矩形的面積與小矩形底邊中點(diǎn)的橫坐標(biāo)之積相加,就是樣本數(shù)據(jù)的估值平均數(shù)。學(xué)生回顧本節(jié)課知識(shí)點(diǎn),教師補(bǔ)充。 讓學(xué)生掌握本節(jié)課知識(shí)點(diǎn),并能夠靈活運(yùn)用。

  • 人教版新課標(biāo)小學(xué)數(shù)學(xué)三年級(jí)下冊(cè)數(shù)學(xué)廣角教案2篇

    人教版新課標(biāo)小學(xué)數(shù)學(xué)三年級(jí)下冊(cè)數(shù)學(xué)廣角教案2篇

    1、同學(xué)們都聽說過“曹沖稱象”的故事吧!曹沖是怎么稱出大象的重量的呢?讓我們一起來回顧這一過程。2、曹沖是把大象的重量轉(zhuǎn)換成了什么的重量呢?【他是把大象的重量轉(zhuǎn)換成了與它重量相等的石頭的重量】因?yàn)楫?dāng)時(shí)沒有那么大的稱能直接稱出大象的重量,所以曹沖就用石頭的重量代換了大象的重量,稱出了石頭的重量也就知道了大象的重量。3、同學(xué)們,你們大概還不知道吧,曹沖確實(shí)非常了不起,他運(yùn)用了一種重要的數(shù)學(xué)思考方法——等量代換?!景鍟簲?shù)學(xué)廣角——等量代換】這節(jié)課我們就來學(xué)習(xí)如何用“等量代換”的方法解決問題。二、引導(dǎo)探究發(fā)現(xiàn)規(guī)律1、今天這節(jié)課,老師給同學(xué)們帶來了神秘的禮物。猜猜,什么樣的孩子能夠得到它們?全班?個(gè)大組,哪組的成員在參與過程中積極主動(dòng),認(rèn)真動(dòng)腦思考,遵章守紀(jì),老師就獎(jiǎng)勵(lì)這個(gè)組一個(gè)青蘋果,三個(gè)青蘋果可以換一個(gè)紅蘋果,兩個(gè)紅蘋果可以換取一份神秘的禮物。看看哪個(gè)組能得到禮物。有信心嗎?老師相信你們是最棒的。

  • 人教版新課標(biāo)小學(xué)數(shù)學(xué)三年級(jí)下冊(cè)位置與方向教案2篇

    人教版新課標(biāo)小學(xué)數(shù)學(xué)三年級(jí)下冊(cè)位置與方向教案2篇

    【教學(xué)目標(biāo)】1、知識(shí)目標(biāo):結(jié)合具體情境,使學(xué)生認(rèn)識(shí)東、南、西、北四個(gè)方向,能夠用給定的一個(gè)方向辨認(rèn)其余的三個(gè)方向,并能用這些詞語描述物體所在的方位。2、能力目標(biāo):培養(yǎng)學(xué)生良好的觀察能力和空間想象能力。3、情感目標(biāo):體驗(yàn)數(shù)學(xué)與現(xiàn)實(shí)生活的密切關(guān)系,增強(qiáng)學(xué)生學(xué)數(shù)學(xué)、用數(shù)學(xué)的意識(shí)?!窘虒W(xué)重難點(diǎn)】使學(xué)生認(rèn)識(shí)東、南、西、北四個(gè)方向,并能根據(jù)學(xué)生自身的方位辨認(rèn)東、南、西、北這四個(gè)方向?!窘虒W(xué)準(zhǔn)備】1、掛圖、指南針2、學(xué)具準(zhǔn)備:準(zhǔn)備主題圖中相關(guān)的學(xué)具卡片或?qū)嵨铩!窘虒W(xué)過程】一、創(chuàng)設(shè)情境,引入新知:同學(xué)們,你們想去北京嗎?今天我們?nèi)⒂^參觀吧?二、愉快體驗(yàn),探究新知1、認(rèn)識(shí)方向:出示主題圖:我們來到了北京的天安門廣場(chǎng),你們看見了哪些建筑物?愿意當(dāng)小導(dǎo)游為大家介紹一個(gè)嗎?(先同桌之間互相練習(xí)解說,師出示教學(xué)掛圖,介紹天安門的地理位置)引出例1)

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