-
新人教版高中英語(yǔ)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(yǔ)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(yǔ)選修2Unit 2 Using langauge-Listening教學(xué)設(shè)計(jì)
? B: Absolutely! Getting involved with Chinese cultural activities there definitely helped a lot. I got to practice my Chinese on a daily basis, and I could learn how native Chinese speakers spoke.? A: What do you feel is your biggest achievement?? B: Learning Chinese characters! I have learnt about 1,500 so far. When I first started, I didn't think it was even going to be possible to learn so many, but now I find that I can read signs, menus, and even some easy newspaper articles.? A: What are you most keen on?? B: I've really become keen on learning more about the Chinese culture, in particular Chinese calligraphy. As I have learnt Chinese characters, I have developed a great appreciation for their meaning. I want to explore Chinese characters by learning how to write them in a more beautiful way. ? A: Finally, what do you want to say to anyone interested in learning Chinese?? I have really become keen on learning more about the Chinese culture, in particular Chinese Calligraphy. As I have learnt Chinese character, I have developed a great appreciation for their meaning. I want to explore Chinese characters by learning how to write them in a more beautiful way.? A: Finally, what do you want to say to anyone interested in learning Chinese?? B: I'd say, give it a shot! While some aspects may be difficult, it is quite rewarding and you will be happy that you tried.? A: Thanks for your time. ? B:You're welcome.
新人教版高中英語(yǔ)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(yǔ)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(yǔ)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(yǔ)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(yǔ)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(yǔ)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(yǔ)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A版高中數(shù)學(xué)必修一冪函數(shù)教學(xué)設(shè)計(jì)（2）
冪函數(shù)是在繼一次函數(shù)、反比例函數(shù)、二次函數(shù)之后，又學(xué)習(xí)了單調(diào)性、最值、奇偶性的基礎(chǔ)上，借助實(shí)例，總結(jié)出冪函數(shù)的概念，再借助圖像研究?jī)绾瘮?shù)的性質(zhì).課程目標(biāo)1、理解冪函數(shù)的概念，會(huì)畫冪函數(shù)y=x，y=x2，y=x3，y=x－1，y=x 的圖象；2、結(jié)合這幾個(gè)冪函數(shù)的圖象，理解冪函數(shù)圖象的變化情況和性質(zhì)；3、通過觀察、總結(jié)冪函數(shù)的性質(zhì)，培養(yǎng)學(xué)生概括抽象和識(shí)圖能力．?dāng)?shù)學(xué)學(xué)科素養(yǎng)1.數(shù)學(xué)抽象：用數(shù)學(xué)語(yǔ)言表示函數(shù)冪函數(shù)；2.邏輯推理：常見冪函數(shù)的性質(zhì)；3.數(shù)學(xué)運(yùn)算：利用冪函數(shù)的概念求參數(shù)；4.數(shù)據(jù)分析：比較冪函數(shù)大??；5.數(shù)學(xué)建模：在具體問題情境中，運(yùn)用數(shù)形結(jié)合思想，利用冪函數(shù)性質(zhì)、圖像特點(diǎn)解決實(shí)際問題。重點(diǎn)：常見冪函數(shù)的概念、圖象和性質(zhì)；難點(diǎn)：冪函數(shù)的單調(diào)性及比較兩個(gè)冪值的大?。?/p>
人教A版高中數(shù)學(xué)必修一對(duì)數(shù)的運(yùn)算教學(xué)設(shè)計(jì)（1）
本節(jié)課是新版教材人教A版普通高中課程標(biāo)準(zhǔn)實(shí)驗(yàn)教科書數(shù)學(xué)必修1第四章第4.3.2節(jié)《對(duì)數(shù)的運(yùn)算》。其核心是弄清楚對(duì)數(shù)的定義，掌握對(duì)數(shù)的運(yùn)算性質(zhì)，理解它的關(guān)鍵就是通過實(shí)例使學(xué)生認(rèn)識(shí)對(duì)數(shù)式與指數(shù)式的關(guān)系，分析得出對(duì)數(shù)的概念及對(duì)數(shù)式與指數(shù)式的 互化，通過實(shí)例推導(dǎo)對(duì)數(shù)的運(yùn)算性質(zhì)。由于它還與后續(xù)很多內(nèi)容，比如對(duì)數(shù)函數(shù)及其性質(zhì),這也是高考必考內(nèi)容之一，所以在本學(xué)科有著很重要的地位。解決重點(diǎn)的關(guān)鍵是抓住對(duì)數(shù)的概念、并讓學(xué)生掌握對(duì)數(shù)式與指數(shù)式的互化；通過實(shí)例推導(dǎo)對(duì)數(shù)的運(yùn)算性質(zhì)，讓學(xué)生準(zhǔn)確地運(yùn)用對(duì)數(shù)運(yùn)算性質(zhì)進(jìn)行運(yùn)算，學(xué)會(huì)運(yùn)用換底公式。培養(yǎng)學(xué)生數(shù)學(xué)運(yùn)算、數(shù)學(xué)抽象、邏輯推理和數(shù)學(xué)建模的核心素養(yǎng)。1、理解對(duì)數(shù)的概念，能進(jìn)行指數(shù)式與對(duì)數(shù)式的互化；2、了解常用對(duì)數(shù)與自然對(duì)數(shù)的意義，理解對(duì)數(shù)恒等式并能運(yùn)用于有關(guān)對(duì)數(shù)計(jì)算。
人教A版高中數(shù)學(xué)必修一對(duì)數(shù)的運(yùn)算教學(xué)設(shè)計(jì)（2）
學(xué)生已經(jīng)學(xué)習(xí)了指數(shù)運(yùn)算性質(zhì)，有了這些知識(shí)作儲(chǔ)備，教科書通過利用指數(shù)運(yùn)算性質(zhì)，推導(dǎo)對(duì)數(shù)的運(yùn)算性質(zhì)，再學(xué)習(xí)利用對(duì)數(shù)的運(yùn)算性質(zhì)化簡(jiǎn)求值。課程目標(biāo)1、通過具體實(shí)例引入，推導(dǎo)對(duì)數(shù)的運(yùn)算性質(zhì)；2、熟練掌握對(duì)數(shù)的運(yùn)算性質(zhì)，學(xué)會(huì)化簡(jiǎn)，計(jì)算.數(shù)學(xué)學(xué)科素養(yǎng)1.數(shù)學(xué)抽象：對(duì)數(shù)的運(yùn)算性質(zhì)；2.邏輯推理：換底公式的推導(dǎo)；3.數(shù)學(xué)運(yùn)算：對(duì)數(shù)運(yùn)算性質(zhì)的應(yīng)用；4.數(shù)學(xué)建模：在熟悉的實(shí)際情景中，模仿學(xué)過的數(shù)學(xué)建模過程解決問題.重點(diǎn)：對(duì)數(shù)的運(yùn)算性質(zhì)，換底公式，對(duì)數(shù)恒等式及其應(yīng)用；難點(diǎn)：正確使用對(duì)數(shù)的運(yùn)算性質(zhì)和換底公式．教學(xué)方法：以學(xué)生為主體，采用誘思探究式教學(xué)，精講多練。教學(xué)工具：多媒體。一、 情景導(dǎo)入回顧指數(shù)性質(zhì)：(1)aras＝ar＋s(a＞0，r，s∈Q)．(2)(ar)s＝ (a＞0，r，s∈Q)．(3)(ab)r＝ (a＞0，b＞0，r∈Q)．那么對(duì)數(shù)有哪些性質(zhì)？如 要求：讓學(xué)生自由發(fā)言，教師不做判斷。而是引導(dǎo)學(xué)生進(jìn)一步觀察.研探.
人教A版高中數(shù)學(xué)必修一對(duì)數(shù)的概念教學(xué)設(shè)計(jì)（2）
對(duì)數(shù)與指數(shù)是相通的，本節(jié)在已經(jīng)學(xué)習(xí)指數(shù)的基礎(chǔ)上通過實(shí)例總結(jié)歸納對(duì)數(shù)的概念，通過對(duì)數(shù)的性質(zhì)和恒等式解決一些與對(duì)數(shù)有關(guān)的問題.課程目標(biāo)1、理解對(duì)數(shù)的概念以及對(duì)數(shù)的基本性質(zhì)；2、掌握對(duì)數(shù)式與指數(shù)式的相互轉(zhuǎn)化；數(shù)學(xué)學(xué)科素養(yǎng)1.數(shù)學(xué)抽象：對(duì)數(shù)的概念；2.邏輯推理：推導(dǎo)對(duì)數(shù)性質(zhì)；3.數(shù)學(xué)運(yùn)算：用對(duì)數(shù)的基本性質(zhì)與對(duì)數(shù)恒等式求值；4.數(shù)學(xué)建模：通過與指數(shù)式的比較，引出對(duì)數(shù)定義與性質(zhì).重點(diǎn)：對(duì)數(shù)式與指數(shù)式的互化以及對(duì)數(shù)性質(zhì)；難點(diǎn)：推導(dǎo)對(duì)數(shù)性質(zhì)．教學(xué)方法：以學(xué)生為主體，采用誘思探究式教學(xué)，精講多練。教學(xué)工具：多媒體。一、 情景導(dǎo)入已知中國(guó)的人口數(shù)y和年頭x滿足關(guān)系 中，若知年頭數(shù)則能算出相應(yīng)的人口總數(shù)。反之，如果問“哪一年的人口數(shù)可達(dá)到18億，20億，30億......”，該如何解決？要求：讓學(xué)生自由發(fā)言，教師不做判斷。而是引導(dǎo)學(xué)生進(jìn)一步觀察.研探.
人教A版高中數(shù)學(xué)必修一函數(shù)的概念教學(xué)設(shè)計(jì)（2）
函數(shù)在高中數(shù)學(xué)中占有很重要的比重，因而作為函數(shù)的第一節(jié)內(nèi)容，主要從三個(gè)實(shí)例出發(fā)，引出函數(shù)的概念.從而就函數(shù)概念的分析判斷函數(shù)，求定義域和函數(shù)值，再結(jié)合三要素判斷函數(shù)相等.課程目標(biāo)1.理解函數(shù)的定義、函數(shù)的定義域、值域及對(duì)應(yīng)法則。2.掌握判定函數(shù)和函數(shù)相等的方法。3.學(xué)會(huì)求函數(shù)的定義域與函數(shù)值。數(shù)學(xué)學(xué)科素養(yǎng)1.數(shù)學(xué)抽象：通過教材中四個(gè)實(shí)例總結(jié)函數(shù)定義；2.邏輯推理：相等函數(shù)的判斷；3.數(shù)學(xué)運(yùn)算：求函數(shù)定義域和求函數(shù)值；4.數(shù)據(jù)分析：運(yùn)用分離常數(shù)法和換元法求值域；5.數(shù)學(xué)建模：通過從實(shí)際問題中抽象概括出函數(shù)概念的活動(dòng)，培養(yǎng)學(xué)生從“特殊到一般”的分析問題的能力，提高學(xué)生的抽象概括能力。重點(diǎn)：函數(shù)的概念，函數(shù)的三要素。難點(diǎn)：函數(shù)概念及符號(hào)y=f(x)的理解。
人教A版高中數(shù)學(xué)必修一基本不等式教學(xué)設(shè)計(jì)（2）
《基本不等式》在人教A版高中數(shù)學(xué)第一冊(cè)第二章第2節(jié)，本節(jié)課的內(nèi)容是基本不等式的形式以及推導(dǎo)和證明過程。本章一直在研究不等式的相關(guān)問題，對(duì)于本節(jié)課的知識(shí)點(diǎn)有了很好的鋪墊作用。同時(shí)本節(jié)課的內(nèi)容也是之后基本不等式應(yīng)用的必要基礎(chǔ)。課程目標(biāo)1.掌握基本不等式的形式以及推導(dǎo)過程，會(huì)用基本不等式解決簡(jiǎn)單問題。2.經(jīng)歷基本不等式的推導(dǎo)與證明過程，提升邏輯推理能力。3.在猜想論證的過程中，體會(huì)數(shù)學(xué)的嚴(yán)謹(jǐn)性。數(shù)學(xué)學(xué)科素養(yǎng)1.數(shù)學(xué)抽象：基本不等式的形式以及推導(dǎo)過程；2.邏輯推理：基本不等式的證明；3.數(shù)學(xué)運(yùn)算：利用基本不等式求最值；4.數(shù)據(jù)分析：利用基本不等式解決實(shí)際問題；5.數(shù)學(xué)建模：利用函數(shù)的思想和基本不等式解決實(shí)際問題，提升學(xué)生的邏輯推理能力。重點(diǎn)：基本不等式的形成以及推導(dǎo)過程和利用基本不等式求最值；難點(diǎn)：基本不等式的推導(dǎo)以及證明過程．
人教A版高中數(shù)學(xué)必修一集合的概念教學(xué)設(shè)計(jì)（2）
例7 用描述法表示拋物線y＝x2＋1上的點(diǎn)構(gòu)成的集合．【答案】見解析 【解析】 拋物線y＝x2＋1上的點(diǎn)構(gòu)成的集合可表示為：{(x，y)|y＝x2＋1}．變式1．[變條件，變?cè)O(shè)問]本題中點(diǎn)的集合若改為“{x|y＝x2＋1}”，則集合中的元素是什么？【答案】見解析 【解析】集合{x|y＝x2＋1}的代表元素是x，且x∈R，所以{x|y＝x2＋1}中的元素是全體實(shí)數(shù)．變式2．[變條件，變?cè)O(shè)問]本題中點(diǎn)的集合若改為“{y|y＝x2＋1}”，則集合中的元素是什么？【答案】見解析 【解析】集合{ y| y＝x2＋1}的代表元素是y，滿足條件y＝x2＋1的y的取值范圍是y≥1，所以{ y| y＝x2＋1}＝{ y| y≥1}，所以集合中的元素是大于等于1的全體實(shí)數(shù)．解題技巧（認(rèn)識(shí)集合含義的2個(gè)步驟）一看代表元素，是數(shù)集還是點(diǎn)集，二看元素滿足什么條件即有什么公共特性。
人教A版高中數(shù)學(xué)必修一任意角教學(xué)設(shè)計(jì)（1）
本節(jié)課選自《普通高中課程標(biāo)準(zhǔn)數(shù)學(xué)教科書-必修一》（人 教A版）第五章《三角函數(shù)》，本節(jié)課是第1課時(shí)，本節(jié)主要介紹推廣角的概念,引入正角、負(fù)角、零角的定義，象限角的概念以及終邊相同的角的表示法。樹立運(yùn)動(dòng)變化的觀點(diǎn),并由此進(jìn)一步理解推廣后的角的概念。教學(xué)方法可以選用討論法,通過實(shí)際問題，如時(shí)針與分針、體操等等都能形成角的流念,給學(xué)生以直觀的印象,形成正角、負(fù)角、零角的概念,明確規(guī)定角的概念，通過具體問題讓學(xué)生從不同角度理解終邊相同的角,從特殊到一般歸納出終邊相同的角的表示方法。A.了解任意角的概念；B.掌握正角、負(fù)角、零角及象限角的定義，理解任意角的概念；C.掌握終邊相同的角的表示方法；D.會(huì)判斷角所在的象限。 1.數(shù)學(xué)抽象：角的概念；2.邏輯推理：象限角的表示；3.數(shù)學(xué)運(yùn)算：判斷角所在象限；4.直觀想象：從特殊到一般的數(shù)學(xué)思想方法；
人教A版高中數(shù)學(xué)必修一任意角教學(xué)設(shè)計(jì)（2）
學(xué)生在初中學(xué)習(xí)了 ～ ，但是現(xiàn)實(shí)生活中隨處可見超出 ～ 范圍的角.例如體操中有“前空翻轉(zhuǎn)體 ”，且主動(dòng)輪和被動(dòng)輪的旋轉(zhuǎn)方向不一致.因此為了準(zhǔn)確描述這些現(xiàn)象，本節(jié)課主要就旋轉(zhuǎn)度數(shù)和旋轉(zhuǎn)方向?qū)堑母拍钸M(jìn)行推廣.課程目標(biāo)1.了解任意角的概念.2.理解象限角的概念及終邊相同的角的含義．3.掌握判斷象限角及表示終邊相同的角的方法．?dāng)?shù)學(xué)學(xué)科素養(yǎng)1.數(shù)學(xué)抽象：理解任意角的概念，能區(qū)分各類角；2.邏輯推理：求區(qū)域角；3.數(shù)學(xué)運(yùn)算：會(huì)判斷象限角及終邊相同的角.重點(diǎn)：理解象限角的概念及終邊相同的角的含義；難點(diǎn)：掌握判斷象限角及表示終邊相同的角的方法．教學(xué)方法：以學(xué)生為主體，采用誘思探究式教學(xué)，精講多練。教學(xué)工具：多媒體。一、 情景導(dǎo)入初中對(duì)角的定義是：射線OA繞端點(diǎn)O按逆時(shí)針方向旋轉(zhuǎn)一周回到起始位置，在這個(gè)過程中可以得到 ～ 范圍內(nèi)的角.但是現(xiàn)實(shí)生活中隨處可見超出 ～ 范圍的角.例如體操中有“前空翻轉(zhuǎn)體 ”，且主動(dòng)輪和被動(dòng)輪的旋轉(zhuǎn)方向不一致.
人教A版高中數(shù)學(xué)必修二簡(jiǎn)單隨機(jī)抽樣教學(xué)設(shè)計(jì)
知識(shí)探究（一）：普查與抽查像人口普查這樣，對(duì)每一個(gè)調(diào)查調(diào)查對(duì)象都進(jìn)行調(diào)查的方法，稱為全面調(diào)查（又稱普查）。 在一個(gè)調(diào)查中，我們把調(diào)查對(duì)象的全體稱為總體，組成總體的每一個(gè)調(diào)查對(duì)象稱為個(gè)體。為了強(qiáng)調(diào)調(diào)查目的，也可以把調(diào)查對(duì)象的某些指標(biāo)的全體作為總體，每一個(gè)調(diào)查對(duì)象的相應(yīng)指標(biāo)作為個(gè)體。問題二：除了普查，還有其他的調(diào)查方法嗎？由于人口普查需要花費(fèi)巨大的財(cái)力、物力，因而不宜經(jīng)常進(jìn)行。為了及時(shí)掌握全國(guó)人口變動(dòng)狀況，我國(guó)每年還會(huì)進(jìn)行一次人口變動(dòng)情況的調(diào)查，根據(jù)抽取的居民情況來推斷總體的人口變動(dòng)情況。像這樣，根據(jù)一定目的，從總體中抽取一部分個(gè)體進(jìn)行調(diào)查，并以此為依據(jù)對(duì)總體的情況作出估計(jì)和判斷的方法，稱為抽樣調(diào)查（或稱抽查）。我們把從總體中抽取的那部分個(gè)體稱為樣本，樣本中包含的個(gè)體數(shù)稱為樣本量。