说课稿travel journal
各位评委老师大家好！我是12号考生，今天我说课的内容是人教版高一英语Unit 3 Travel Journal。以下我将从说教材，讲教学目标，说教学方法，教学过程，板书设计和教学效果，六个阶段来完成今天的说课。
首先，我们分析下教材，This unit is to introduce the travelling to us. The reading passage is the center of this unit. It is the most important teaching material in this lesson, which contains most of the vocabularies and grammar points that students should learn.
根据对教材的理解和内容的分析，我将从知识，技能和情感三个方面来说明教学目标：The knowledge aim is to help students understand and master the new words, phrases and sentence patterns and have deeper understanding of the topic ----journey down the Mekong. The ability aim is to grasp some reading ability such as guessing, skimming, scanning and so on. The emotional aim is to make students love our country and nature.
下面我们来说下学生的情况，Although the students have the basic abilities of learning, speaking, reading and writing, they still need many opportunities to practice what they have learned and to develop their autonomous and cooperative learning ability.
Based on the requirement of the syllabus, the important point is to help students understand and master the important words, phrases and expressions. The difficult point is to help students master the grammar points. (---identify examples of the present continuous tense: expressing futurity in the text)
下面来探究我们的教学方法。Teaching methods and studying ways
Generally speaking, I adopt task-based language teaching and communicative approach in my class. As for learning, students will master the knowledge through independent reading, discussing and cooperating.
本课教学时，以多媒体教学为主，给予学生更直观的感受，也能够适当加快教学的节奏。
Here comes the most important part, the teaching procedure. It includes 5 steps: they are Lead-in, While-reading, Post-reading, Consolidation, and Homework.
Step 1: lead in and pre-reading, it will spend 7mins.
At the beginning of the class, I will lead in the reading material by the following two activities:
first I will make students look at the picture on page 18 and to list countries that it flows through. Let the students guess what today's topic is. It can attract students' attention and interest. The classroom atmosphere can also be activated by guessing.
The second is predicting. Students are required to predict what will happen when travelling through the Mekong river by looking at the picture. So students' learning strategy of predicting can be improved and their curiosity is aroused.
While-reading is the main part and it will take 21mins. Here I adopt the top-down reading model. This step is divided into 2 parts: fast reading and careful reading. Before reading, I will ask the students to predict what will talk in the text according to the title. It can exert the students' imagination.
First is Fast reading (6mins)
I will let students skim the whole passage quickly and silently then get the main idea of each paragraph, so that they will have a clear understanding of the passage.
Second is careful reading (10mins)
While reading, I will make students try to find the detailed information about the story by discussing and answering the following questions:
“Is it a difficult journey to cycle along the Mekong? Why?” and
“What can you see when you travel along the Mekong River?”
At the same time, let the students learn the new words, such as ever since, persuade, graduate from, schedule, be fond of, shortcoming, care about and so on.
Step 3: Post-reading (10mins)
In this step, I will spend 10 minutes on them. The activity is retelling. Students are required to introduce what the passage talks about, using the linking words like first, then, after that, now, and so on. It can help students learn better about words and expressions of this lesson and content of text as well.
Step 4: Consolidation (6mins)
After dealing with the detailed information of each paragraph, I will ask students to read the whole passage again and do exercise 1 and 3 on the page 19 to consolidate what they have learned.
Step 5:Homework (1min)
Finally it comes to the homework. Students are required to
1. Find out some useful words and sentences then recite them.
2. Write a short passage about one of wonderful journey you have experienced to express your feeling at that time, about 100 words.
Blackboard design
下面说下板书设计，黑板可分为左中右三块，左边用于课程导入，中间写上重要的词汇和句式，右边则作为用于随堂板书，随写随擦。
最后说下教学效果预没
本课的教学设计遵从新课标的教学原则，面向全体学生，尊重学生语言能力，认知水平以及学习方式等个性差异，思路清晰，教学设计合理，课堂秩序良好，学生兴趣浓厚，思维活跃，圆满完成教学任务，不同水平学生各有所得。以上是我说课的全部内容----擦黑板
频率分布直方图优质课教案设计(2014)
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的信息,用样本去估计总体） 指出两种估计手段：一是用样本的频率分布估计总体的分布,二是用样本的数字特征（平均数、标准差等）估计总体的数字特征.这就是我们这堂课要研究、学习的主要容——用样本的频率分布估计总体分布. 新知探究 提出问题 （1）我国是世界上严重缺水的国家之一,城市缺水问题较为突出,某市政府为了节约生活用水,计划在本市试行居民生活用水定额管理,即确定一个居民月用水量标准a,用水量不超过a的部分按平价收费,超出a的部分按议价收费.如果希望大部分居民的日常生活不受影响,那么标准a定为多少比较合理呢？你认为,为了较合理地确定出这个标准,需要做哪些工作？（让学生展开讨论） （2）什么是频率分布？ （3）画频率分布直方图有哪些步骤？ （4）频率分布直方图的特征是什么？ 讨论结果： （1）为了制定一个较为合理的标准a,必须先了解全市居民日常用水量的分布情况,比如月均用水量在哪个围的居民最多,他们占全市居民的百分比情况等.因此采用抽样调查的方式,通过分析样本数据来估计全市居民用水量的分布情况. 分析数据的一种基本方法是用图将它们画出来,或者用紧凑的表
必修一unit3traveljournal学习知识点及语法详解
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（2）、使相信，使信服 persuade sb that …使某人相信… eg：他使我相信了这个事实 【注意】如果“劝说”不服, 不能直接用persuade, 而应用try to persuade sb to do 或advise sb to do, 或者用persuade的否定式。 3、After graduating from college, we finally got the chance to take a bike trip. 【辨析】finally, at last与in the end
2018年高三英语一轮总复习专题13Traveljournal(句型语法)
专题1.3 Travel journal 【学以致用】 三、重点句型剖析 1. It was my sister who first had the idea to cycle along the entire Mekong River from where it begins to where it ends. 首先想到要沿整个湄公河从源头到终点骑车旅行的人是我的姐姐。 【句式分析】 强调句型的基本结构：It is/was＋被强调的部分＋that/who＋其他部分。 (1)该句型中被强调部分通常是句子的主语、宾语、状语等，一般不强调谓语动词。 (2)如果被强调部分是表示人的词，用who或whom，也可以用that。强调其他成分都用that。 ①It was Mary who/that I met in the street yesterday.(强调宾语) 昨天我在街上遇见的是玛丽。 ②It was I that/who met Mary in the street yesterday.(强调主语) 昨天是我在街上遇见玛丽的。 ③It was in the street that I met Mary yesterday.(强调地点状语) 昨天我是在街上遇见的玛丽。 ④It was yesterday that I met Mary in the street.(强调时间状语) 是昨天我在街上遇见玛丽的。 【归纳拓展】 (1)not...until...所在句子的强调结构为：It is/was＋not until...＋that＋句子的其他部分。例如：It was not until the window was shut that I went downstairs.
人教版必修一Unit3Traveljournal教案设计
全国中小学“教学中的互联网搜索”优秀教学案例评选 教案设计
A. He doesn’t li ke her at all. B. He is a bit proud of her and admires her. C. He has to obey her because she is his sister. D. He thinks that her knowledge of geography is very poor. (2)Altogether there are______________ people who have to take the great bike trip. A. one B. two C. three D. four (3)According to the text, which of the following statements is not true? A. Wang Kun thinks that it is too cold and too high to start their trip in Qinghai. B. They found a large atlas with good maps in the library. C. At first, the Mekong River is small, and the water is clear and warm. D. The Mekong River finally flows into the South China Sea. (4)Which is the proper order according to the text? a. The Mekong River enters the South China Sea. b. The Mekong River begins at a glacier on a Tibetan mountain. c. At first, the Mekong River is small, and the water is clear and col d. d. The Mekong River enters Southeast Asia. e. The Mekong River travels across western Y unnan Province. f. The Mekong River leaves China. A. b, c, e, f, a, d B. b, c, e, f, d, a C. c, b, e, f, d, a D. c, b, f, e, a, d (5)It can be inferred from the passage that Wang Kun is a______________ person. A. brave B. kind C. timid D. careful 3. Language problems（猜测词义、分析长难句） While checking the answers with the whole class, deal with any language problems to see whether the students can guess the meanings of new vocabulary such as persuade, determined, altitude, etc. 1. It was my sister who first had the idea to cycle along the Mekong River from where it begins to where it ends. (It is/was. . . who/that. . . ) 2. Although she didn’t know the best way of getting to places, she insisted that we find the source of the river and begin our journey there. (insist that sb.
2019高考英语必修1Unit3Traveljournal配套练习题含解析
Travel journal 李仕才 一、阅读理解。 阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。 A record of 6.15 million trips was made by Chinese mainland tourists to overseas destinations during the seven-day Spring Festival holiday，which ended on Thursday，according to the China National Tourism Administration.'That is an increase of 7 percent compared with last year's Spring Festival.About 374,000 trips were organized by travel agencies，a 2.5 percent increase. The administration also reported growth from individual and high-end(高端的) travelers and said that in addition to top and coastal cities，inland cities—such as those in the Guangxi Zhuang Autonomous Region—became important source markets.With many Chinese now traveling abroad for Spring Festival，their choice of destinations has expanded along with their growing interest in foreign cultures and services. “Chinese tourists are increasingly willing to experience local cultures and services，including staying in private homes，appreciating plants and watching monkeys in hot springs，” Li Xue jing，the agency's marketing manager，said. A Chinese tourist surnamed Guo，who was vacationing on an island in the Philippines，said：“I now pay more attention to relaxation and enjoyment during the holidays instead of shopping or choosing gifts for relatives.” Another choice is Britain.Though the devaluation(货币贬值)of the pound is a factor，Britain's rich history and famous education tradition have caught the eye of Chinese. 1．How many trips were made to foreign countries during the Golden Week of this Spring festival holiday? A．6,150,000. B．2,500,000. C．7,000,000. D．374,000. 2．What can we learn about some inland cities in Guangxi? A．They're reported to have become important attractions. B．They're famous for all kinds of plants and monkeys. C．They have the best hot spring in the world. D．They belong to coastal source markets. 3．What would Miss Guo do on her vacation according to the text? A．Go shopping for gifts.
Unit3Traveljournal[教案]
Unit3 Travel journal 一、教材的地位和作用 本单元讲述了主人公以旅行日志的形式详细地记录一段沿湄公河而下的自行车旅行经历。学生通过追随这一段旅程，探讨与“旅游”相关的各种话题。通过本单元的学习，不仅可以使学生学到与旅游有关的语言知识和技能，还会使学生对旅游产生浓厚的兴趣，通过旅行了解世界各地的文化，增加对祖国大好河山的热爱和国际意识，进而培养学生的跨文化际能力。 二、学情分析 高中一年级的学生已经在初中阶段的英语学习中,已经积累了一定的词汇基础,并掌握了一些简单的学习策略和技巧,具有初步的英语听说读写能力。但是，学生个性和英语水平差异大，因此教学设计要有梯度，由浅入深，注意层次性。 英语作为一门语言，其最基本的作用就是人际交流。但是中国学生普遍的情况是不愿开口说英语。因此我在课堂要鼓励学生们利用每个机会开口说英语，以达到锻炼口语的目的。 三．教学目标 根据《新课程标准》的要求和学生已有的知识基础和认知能力，在仔细学习和分析教材的基础上，我确定了以下教学目标。 四．教学重点和难点 １.重点：学会制作旅行计划；学会用现在进行时表将来的方法。 ２.难点：提高学生口语运用能力和合作学习的能力。 五．教学方法
根据高中生的心理特点，宜采用形式多样的教学方法和学生积极主动参与的学习方式，激发学生的学习兴趣，让他们在学习中学会参与，在参与中学会学习。因此我采用了以下几种教学法。 (1)任务型教学法 (2)合作学习法 六．教学过程 Step1 Lead in 导入 学习这节课时，学生们不久前正好从国庆节休假回来，可以充分利用这个机会，以两人对话或小组的形式来讲述每个人旅行经历，有条件的话可以和大家分享照片和视频，让他们也可以感受其中的乐趣并了解更多的旅游知识，从而引入本节课的主题：旅行计划以及旅行前的准备。 设计意图：旅游是学生比较感兴趣的话题，用这个和学生生活密切相关的话题和经历来引起学生的学习兴趣和热情。 Step2 Warming Up热身 (1)列举比较常见的几种交通工具，并让学生小组讨论说说这些交通工具有哪些优点和缺点。 (2)让学生策划一次自己的旅游活动。我会在语言上和内容上对他们进行指导。利用这个机会介绍本课的重点语法：现在进行时表示将来。指导性的问题如下： ●Where are you traveling to? ●How are you getting there? ●How much are you spending on it? ●What are you taking with you for your trip?
英语Unit3Traveljournal学案新人教版必修1
Unit 3 Travel journal 核心单词 1. persuade vt.说服；劝服；使相信(同convince) 常用结构： persuade sb. of sth. 使某人相信某事 persuade sb. to do sth. 说服某人做某事 persuade sb. into doing sth. 说服某人做某事 persuade sb. out of doing sth. 说服某人不要做某事 persuade sb. that-clause 使某人相信…… 联想拓展 talk sb. into/out of doing sth. =reason sb. into/out of doing sth. 说服某人做/不做某事 trick sb. into/out of doing sth. 诱使某人做/不做某事 urge sb. into/out of doing sth. 怂恿某人做/不做某事 易混辨析 advise/persuade advise 强调“劝告，建议”的动作，不注重结果；而persuade强调“已经说服”，重在结果。用法上：advise可跟v.-ing形式作宾语，也可以接that-clause （that sb. should do）,而persuade则不能。 I persuaded him of its truth. 我使他相信这是真的。
We will persuade him to take the medicine. 我们将说服他把药吃下去。 We persuaded her into taking the job. 我们说服她接受了这份工作。 I persuaded my father out of smoking. 我劝服父亲戒了烟。 She persuaded me that death does not end all. 她说服我相信了死并不能结束一切。 He persuaded her to go to school, even though she did not want to. 即使她不想去上学，他还是说服她去了。 He advised that we (should) leave early. 他建议我们早点出发。 高手过招 单项填空 ①Alice trusts you; only you can her to give up the foolish idea. （2010·安徽合肥八中检测） A. suggest B. attract C. tempt D. persuade ②Mr Li no longer smokes now because his wife him to give up smoking last year. （2010·江苏常州检测题） A. suggested B. advised C. persuaded D. told ①解析：选D。句意为：爱丽丝信任你，唯有你能说服她放弃这种愚
Travel journal课文
第三单元Travel journal JOURNEY DOWN THE MEKONG PART 1 THE DREAM AND THE PLAN My name is Wang Kun. Ever since middle school, my sister Wang Wei and I have dreamed about taking a great bike trip. Two years ago she bought an expensive mountain bike and then she persuaded me to buy one. Last year, she visited our cousins, Dao Wei and Yu Hang at their college in Kunming. They are Dai and grew up in western Yunnan Province near the Lancang River, the Chinese part of the river that is called the Mekong River in other countries. Wang Wei soon got them interested in cycling too. After graduating from college.we finally got the chance to take a bike trip. I asked my sister, "Where are we going?" It was my sister who first had the idea to cycle along the entire Mekong River from where it begins to where it ends. Now she is planning our schedule for the trip. I am fond of my sister but she has one serious shortcoming. She can be really stubborn. Although she didn't know the best way of getting to places, she insisted that she organize the trip properly. Now, I know that the proper way is always her way. I kept asking her, "When are we leaving and when are we coming back?" I asked her whether she had looked at a map yet. Of course, she hadn't; my sister doesn't care about details. So I told her that the source of the Mekong is in Qinghai Province. She gave me a determined look—the kind that said she would not change her mind. When I told her that our journey would begin at an altitude of more than 5,000 metres, she seemed to be excited about it. When I told her the air would be hard to breathe and it would be very cold, she said it would be an interesting experience. I know my sister well. Once she has made up her mind, nothing can change it. Finally, I had to give in. Several months before our trip,Wang Wei and I went to the library. We found a large atlas with good maps that showed details of world geography. From the atlas we could see that the Mekong River begins in a glacier on a Tibetan mountain. At first the river is small and the water is clear and cold. Then it begins to move quickly. It becomes rapids as it passes through deep valleys, travelling across western Y unnan Province. Sometimes the river becomes a waterfall and enters wide valleys. We were both surprised to learn that half of the river is in China. After it leaves China and the high altitude,the Mekong becomes wide，brown and warm. As it enters Southeast Asia, its pace slows. It makes wide bends or meanders through low valleys to the plains where rice grows. At last, the river delta enters the South China Sea. 沿湄公河而下的旅行 第一部分梦想与计划
2019年高考英语一轮复习1.3Traveljournal测含解析
1.3 Travel journal 单元检测卷（时间50分钟；满分100分） 班级_________________姓名_____________考号_________________得分_______________________ I 语言知识及应用 (共两节，满分45分) 第一节完形填空 (共15小题；每小题2分，满分30分) 【安徽省皖南八校2018届高三上学期第一次联考】阅读下面短文，从短文后各题所给的四个选项(A、B、C和D)中，选出可以填入空白处的最佳选项。 A few summers ago my daughter and I were swimming in our pool. This day had been like most others,___1___ I had no way of knowing that this one would ___2___in our family history as a memory we ___3___and still talk about from time to time. The sun was setting and the night was___4___approaching. Fro the shallow end of our pool, my daughter ___5___it first. Right about eye level, a spider was spinning her___6___by the pool. It ___7___me that my daughter noticed this, and it surprised me even ___8___that she wasn’t afraid of the spider. Instead, she delightfully ___9___ as the spider busied herself in the cycle of life. as we both gazed at this___10___of nature, a very simple thought___11___me. I had lost track of time. I honestly didn’t know ___12___we had been just standing there and staring at that spider ___13___her web. But, regardless of what ever amount of time had past, the ___14___was that we were simply having fun. We were having fun___15___ really doing anything really BIG or special. I thought. However, in contrast, I believe that by sharing this ___16___of the spider building her web we were___17___ just as fulfilled as if we had done something very important. Remember that the ___18___things are the best things in life. spend time together appreciating the simple things in ___19___ , and even more importantly, ___20___time together talking about life. Do this and you’ll have special moments and special memories that will last a life time. 1. A. or B. and C. but D. so 2. A. go down B. get up C. take off D. lead to
人教版英语高一必修一Unit3Traveljournal期末知识梳理
人教新课标版高一必修一Unit 3 Travel journal期末知识梳理 一、训练导入 1、考纲单词 写岀下列考纲词汇的词性和汉义(如果不止一个词性学生自行增补词性及相应汉义) 1 journal () 2、transport() 3、prefer() 4、disadvantage () 5、fare () 6、persuade() 7、graduate() 8、finally() 9、schedule ( ) 10 fond() 、 11 organize( ) 、 12 determine( ) 、 13 boil () 、 14 insurance () 、 15 reliable ( ) 、 II.核心短语 1、ever 从那以后 2、care 关心：忧虑：惦念 3. make up one s 卜决心：决定 4、usual照常 5、be of喜爱;喜欢 6、one s mind改变主意 7. give 投降;屈服;让步 8、midnight在午夜 9、from毕业于
10、set sb、in使某人对……感兴趣 11、dream 梦见…… 12、attitude 对……的态度 13. make 编造 14、give 放弃 15、the setting sun 在落日 下 16、put tents搭起帐篷 17、stay 睡不着 18、leave 留卜 19、think 思考 20、the river bank沿着河岸 二、知识精讲 I、重点词汇 1、prefer v. （preferred/preferring）更喜欢，选择某事物（而不选择其他事物） ［典例］ 1 ）、I prefer dogs locals、猫狗之中我更喜欢狗。 2）、I prefer speaking the truth to lying> 我宁愿讲实话而不愿说谎? 3）、Would you prefer that we put off our wedding till next mouth?你是否更愿意把我们的婚礼推迟到下个月？［来源:］ ［重点用法］ prefer sth、、/doing prefer A to B prefer doing A to doing B prefer （sb. ）todo （rather than do） prefer that― lause 2、persuade v、说服;劝说 ［典例］ 1）、We persuaded him to take the job /into taking the job、我们说服了他接受这份工作. 2）、My mother finally persuaded me not to go to the party / out of going to the party > 妈妈最终说服我不参加这次聚会。
人教版必修一教案Unit3TravelJournal
Unit 3 Travel Journal 一．教学目标 能力目标： 1. 能运用所学语言表达将来的计划，并学会向别人告别和表达祝愿。 2. 学会用英语交流旅游计划，谈论旅游话题。 3. 掌握理解本单元旅游日记的内容和阅读技巧。 4. 学会写书信谈论旅游感受、描写旅游景观等。 情感目标： 1. 运用所学知识在实际生活中安排旅游, 包括选择地点、选择路线、选择旅游方式、查询费用等。 2. 掌握旅游常识，学会解决旅游中出现的一些问题。 3. 养成外出旅游时写旅游日记的习惯。 4. 了解生态旅游的概念和意义，帮助学生树立为建立人与自然和谐发展的环境而努力的意识。 二．教学重点和难点： 重点：1. 课文中出现的重要单词,如journal fare transport Vietnam finally cycle persuade stubborn insist proper properly determine determined altitude valley attitude shorts camp record topic familiar brave, 及词组one-way fare dream of/about persuade somebody to do something be determined to do something as usual change one’s mind give in be familiar with something be familiar to somebody etc. 2. 现在进行时表将来，如When are you leaving? 3.祝愿和告别时的交际功能用语。 难点: 用英语交流旅游计划, 谈论旅游感受、描写旅游景观等。 三．教学设计 Step1: Lead-in: Warming up by discussing Do you like traveling? Why do you like traveling? And why not? Where have you ever been before? How did you get there? If you are given a chance to travel around the world, what kind of transportations will you use and why? Step2: Reading As we all know, there are a lot of rivers in the world and also there are many great rivers. Now look at the chart. In the left column are names of some great rivers.
高中英语第三单元Traveljournal过关检测新人教版必修1
第三单元过关检测 (时间:90分钟分值:120分) Ⅰ.阅读理解(共两节,满分40分) 第一节(共12小题;每小题2.5分,满分30分) 阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。 A (导学号51920031) Saturday,March 24th We have arrived in the hot,wet city of Bangkok.This is our first trip to Thailand.All the different smells make us want to try the food.We are going to eat something special for dinner tonight.The hotel we are staying in is cheap,and very clean.We plan to stay here for a few days,visit some places in the city,and then travel to Chiang Mai in the North. Tuesday,March 27th Bangkok is wonderful and surprising.The places are interesting.We visited the famous market which was on water,and saw a lot of fruit and vegetables.Everything is so colorful,and we have taken hundreds of photos already!Later today we will leave for Chiang Mai.We will take the train north,stay in Chiang Mai for two days,and then catch a bus to Chiang Rai. Friday,March 30th Our trip to Chiang Rai was long and boring.We visited a small village in the mountains.The village people here love the quiet life—no computers or phones.They are the kindest people I have ever met.They always smile and say “hello”.Kathy and I can only speak a few words of Thai,so smiling is the best way to show our kindness.I feel good here and hope to be able to come back next year. 1.It seems that visitors in Bangkok. A.often feel hungry B.can’t take any photos C.can have a good time D.feel a little bored 答案：C 提示：A、B、D三项都与原文所讲情况不符。 2.Which of the following is TRUE? A.Chiang Mai is a beautiful city in the south of Thailand. B.The writer left Chiang Mai for Chiang Rai by bus. C.The writer is traveling alone in Thailand. D.The writer will take a bus to Chiang Mai.
《数据的频数分布》word版 公开课一等奖教案 (1)
当我们在日常办公时，经常会遇到一些不太好编辑和制作的资料。这些资料因为用的比较少，所以在全网范围内，都不易被找到。您看到的资料，制作于2021年，是根据最新版课本编辑而成。我们集合了衡中、洋思、毛毯厂等知名学校的多位名师，进行集体创作，将日常教学中的一些珍贵资料，融合以后进行再制作，形成了本套作品。 本套作品是集合了多位教学大咖的创作经验，经过创作、审核、优化、发布等环节，最终形成了本作品。本作品为珍贵资源，如果您现在不用，请您收藏一下吧。因为下次再搜索到我的机会不多哦！ 《20.1 数据的频数分布》 教学目标 1．如何收集与处理数据． 2．会绘制频数分布直方图与频数分布折线图． 3．了解频数分布的意义，会得出一组数据的频数分布． 教学重点 1．了解频数分布的意义，会得出一组数据的频数分布直方图、频数分布折线图． 2．数据收集与处理． 教学难点 1．决定组距与组数． 2．数据分布规律． 教学过程 一、导入新课 请大家一起回忆一下，我们如何收集与处理数据． 1．首先通过确定调查目的，确定调查对象． 2．收集有关数据． 3．选择合理的数据表示方式统计数据． 4．根据所收集的数据进行数据计算．根据特征数字，估计总体情况，设计可行的计划与方案，并不断实施与改进方案． 大家能否帮卖雪糕的李大爷设计一种方案，确定各种牌子的雪糕应进多少？ 首先应开展调查．统计一下李大爷每天卖出的A、B、C、D、E五个牌子雪糕的数量． 二、讲授新课 这是小丽统计的最近一个星期李大爷平均每天能卖出的A、B、C、D、E五个牌子雪糕的数量．
根据小丽的统计结果，请你为李大爷设计一个进货方案． A 、B 两种雪糕卖出的较多，可以多进些，D 种雪糕卖出的少，可以少进些． A 多进多少？B 多进多少？D 进多少？如何通过比例确定？ A 占总数的25%， B 占总数的35%， C 占总数的13%，D 占总数的8%，E 占总数的19%． 如何确定进货的总数，还应考虑哪些因素？ 还应考虑当天气温情况，天气凉，气温低时少进货．天气热，气温高时多进货，即进雪糕总数应考虑当天气温变化．不能每天都进518支雪糕． 小结．我们在收集到一些数据后，一定要选择合理的表示方式表示所收集的数据．常用表格与图表两种方式．何时用哪种方式，应根据我们研究问题的侧重点来定．具体问题具体分析．不要生搬硬套，应多总结、提炼研究问题的思想和方法．不要一味去模仿．只要多动脑去思考．我相信同学们会创新出更好的方法． 三、课堂练习 1、某商场对今年五．一节这天销售A 、B 、C 三种品牌电脑的情况进行了统计，绘制如图6和图7所示的统计图．根据图中信息解答下列问题： （1）哪一种品牌电脑的销售量最大？ （2）补全图6中的条形统计图． （3）写出A 品牌电脑在图7中所对应的圆心角的度数． （4）根据上述统计信息，明年五．一节期间该商场对A 、B 、C 三种品牌的电脑如何订货？ 请你提一条合理化的建议． 图 7 图 6