-
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(jiàn)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?lè)较蛐D(zhuǎn)一周回到起始位置，在這個(gè)過(guò)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(jiàn)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(wèn)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(lái)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。
人教A版高中數(shù)學(xué)必修一誘導(dǎo)公式教學(xué)設(shè)計(jì)（2）
本節(jié)主要內(nèi)容是三角函數(shù)的誘導(dǎo)公式中的公式二至公式六，其推導(dǎo)過(guò)程中涉及到對(duì)稱變換，充分體現(xiàn)對(duì)稱變換思想在數(shù)學(xué)中的應(yīng)用，在練習(xí)中加以應(yīng)用，讓學(xué)生進(jìn)一步體會(huì) 的任意性；綜合六組誘導(dǎo)公式總結(jié)出記憶誘導(dǎo)公式的口訣：“奇變偶不變，符號(hào)看象限”，了解從特殊到一般的數(shù)學(xué)思想的探究過(guò)程，培養(yǎng)學(xué)生用聯(lián)系、變化的辯證唯物主義觀點(diǎn)去分析問(wèn)題的能力。誘導(dǎo)公式在三角函數(shù)化簡(jiǎn)、求值中具有非常重要的工具作用，要求學(xué)生能熟練的掌握和應(yīng)用。課程目標(biāo)1.借助單位圓，推導(dǎo)出正弦、余弦第二、三、四、五、六組的誘導(dǎo)公式，能正確運(yùn)用誘導(dǎo)公式將任意角的三角函數(shù)化為銳角的三角函數(shù)，并解決有關(guān)三角函數(shù)求值、化簡(jiǎn)和恒等式證明問(wèn)題2.通過(guò)公式的應(yīng)用，了解未知到已知、復(fù)雜到簡(jiǎn)單的轉(zhuǎn)化過(guò)程，培養(yǎng)學(xué)生的化歸思想，以及信息加工能力、運(yùn)算推理能力、分析問(wèn)題和解決問(wèn)題的能力。
數(shù)據(jù)的收集與整理 3 數(shù)據(jù)的表示教案教學(xué)設(shè)計(jì)
創(chuàng)設(shè)情境，導(dǎo)入新課：你對(duì)母親知多少師問(wèn)1：我們5月份剛過(guò)了一個(gè)重要的節(jié)日，你知道是什么嗎？----母親節(jié)。師問(wèn)2：那你知道媽媽的生日嗎？（舉手示意），每個(gè)媽媽都知道自己孩子的生日，請(qǐng)不知道的同學(xué)回家了解一下，多關(guān)心一下自己的父母。師問(wèn)3：那你知道媽媽最愛(ài)吃的菜嗎？你可以選擇知道、不知道或者是沒(méi)有愛(ài)吃的（拖動(dòng)白板上相對(duì)應(yīng)的表情符號(hào)）。請(qǐng)大家用不同的手勢(shì)表示出來(lái)。我找3名同學(xué)統(tǒng)計(jì)各組的數(shù)據(jù)，寫在黑板上（隨機(jī)找3名學(xué)生數(shù)人數(shù)）。下面我來(lái)隨機(jī)采訪一下：你媽媽最喜歡吃的菜是什么？（教師隨機(jī)采訪，結(jié)合營(yíng)養(yǎng)搭配和感恩教育）
部編版五年級(jí)語(yǔ)文下冊(cè)全冊(cè)教案及教學(xué)反思
初讀古詩(shī)，整體感知?！ ?.請(qǐng)同學(xué)們用自己喜歡的方式讀古詩(shī)《四時(shí)田園雜興》（其三十一）。要求借助拼音學(xué)會(huì)生字，把古詩(shī)讀正確，讀通順?！ ?.指名多個(gè)學(xué)生朗讀古詩(shī)，師生評(píng)議，糾正讀得不準(zhǔn)確的字音。尤其注意讀準(zhǔn)“晝、耘”的讀音。指導(dǎo)讀準(zhǔn)多音字“供”（[ gōng ]作動(dòng)詞時(shí)，準(zhǔn)備著東西給需要的人應(yīng)用:供應(yīng)、供給（jǐ）、供求、供需、供銷、提供、供不應(yīng)求。[ góng ]奉獻(xiàn):供養(yǎng)、供獻(xiàn)、供奉、供佛、供職；祭祀用的東西:供桌、供品、供果、上供；被審問(wèn)時(shí)在法庭上述說(shuō)事實(shí):招供、口供、供狀、供認(rèn)、供詞。）在詩(shī)中讀四聲?！ ?.把古詩(shī)反復(fù)多讀幾遍，通過(guò)查字典、問(wèn)同學(xué)、問(wèn)老師等方式，結(jié)合課文注釋，理解詩(shī)句中詞語(yǔ)的意思，用自己的話說(shuō)說(shuō)這首詩(shī)大體寫了什么。記下不理解的地方和不明白的問(wèn)題?！ ?.學(xué)生自愿舉手發(fā)言，其他同學(xué)進(jìn)行評(píng)議，也可以做補(bǔ)充發(fā)言。全班交流，教師相機(jī)引導(dǎo)并小結(jié)。
新人教版高中英語(yǔ)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(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 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 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
基礎(chǔ)教育勞技課教學(xué)工作計(jì)劃范文
1、態(tài)度與價(jià)值觀：通過(guò)學(xué)習(xí)交流、合作、討論的方式，積極探索，改進(jìn)學(xué)生的學(xué)習(xí)方式，提高學(xué)習(xí)質(zhì)量，逐步形成正確地勞動(dòng)技術(shù)價(jià)值觀。 2、知識(shí)與技能：主要內(nèi)容包括“金屬材料與加工”“服裝裁剪與縫制”“家用電冰箱”共三章，各章都力圖講清知識(shí)的來(lái)龍去脈，將基礎(chǔ)知識(shí)和怎樣操作呈現(xiàn)給同學(xué)們。
網(wǎng)上教學(xué)教師個(gè)人心得體會(huì)參考范文
但我校網(wǎng)絡(luò)學(xué)習(xí)在體現(xiàn)共性特征的同時(shí)，也彰顯著學(xué)科特性，在教研組的統(tǒng)籌規(guī)劃下，各學(xué)科教學(xué)工作扎實(shí)有效。語(yǔ)文學(xué)科堅(jiān)持落實(shí)語(yǔ)文核心素養(yǎng)，針對(duì)不同年級(jí)學(xué)生及當(dāng)前考綱要求，對(duì)學(xué)生提出針對(duì)性的指導(dǎo)方法，例如高三年級(jí)結(jié)合當(dāng)前考試要求，強(qiáng)化學(xué)生對(duì)時(shí)事新聞的解讀能力，非畢業(yè)年級(jí)強(qiáng)化學(xué)生的日常學(xué)習(xí)積累能力。數(shù)學(xué)學(xué)科根據(jù)不同學(xué)生的實(shí)際情況，有針對(duì)性的提出作業(yè)訓(xùn)練，同時(shí)通過(guò)抽查等方式，落實(shí)對(duì)學(xué)生的訓(xùn)練成效。英語(yǔ)學(xué)科強(qiáng)化對(duì)不同考點(diǎn)的專題訓(xùn)練，有計(jì)劃的開(kāi)展對(duì)聽(tīng)力、閱讀理解、完形填空等題型的專項(xiàng)訓(xùn)練，重在積累。綜合學(xué)科加強(qiáng)合作，強(qiáng)化素材整理及綜合訓(xùn)練，將時(shí)間進(jìn)行有機(jī)協(xié)調(diào)，落實(shí)綜合學(xué)習(xí)成效。
網(wǎng)上教學(xué)教師個(gè)人心得體會(huì)參考范文
但我校網(wǎng)絡(luò)學(xué)習(xí)在體現(xiàn)共性特征的同時(shí)，也彰顯著學(xué)科特性，在教研組的統(tǒng)籌規(guī)劃下，各學(xué)科教學(xué)工作扎實(shí)有效。語(yǔ)文學(xué)科堅(jiān)持落實(shí)語(yǔ)文核心素養(yǎng)，針對(duì)不同年級(jí)學(xué)生及當(dāng)前考綱要求，對(duì)學(xué)生提出針對(duì)性的指導(dǎo)方法，例如高三年級(jí)結(jié)合當(dāng)前考試要求，強(qiáng)化學(xué)生對(duì)時(shí)事新聞的解讀能力，非畢業(yè)年級(jí)強(qiáng)化學(xué)生的日常學(xué)習(xí)積累能力。數(shù)學(xué)學(xué)科根據(jù)不同學(xué)生的實(shí)際情況，有針對(duì)性的提出作業(yè)訓(xùn)練，同時(shí)通過(guò)抽查等方式，落實(shí)對(duì)學(xué)生的訓(xùn)練成效。英語(yǔ)學(xué)科強(qiáng)化對(duì)不同考點(diǎn)的專題訓(xùn)練，有計(jì)劃的開(kāi)展對(duì)聽(tīng)力、閱讀理解、完形填空等題型的專項(xiàng)訓(xùn)練，重在積累。綜合學(xué)科加強(qiáng)合作，強(qiáng)化素材整理及綜合訓(xùn)練，將時(shí)間進(jìn)行有機(jī)協(xié)調(diào)，落實(shí)綜合學(xué)習(xí)成效。
平行線的性質(zhì)定理和判定定理教案教學(xué)設(shè)計(jì)
1、互逆命題：在兩個(gè)命題中，如果第一個(gè)命題的條件是第二個(gè)命題的 ，而第一個(gè)命題的結(jié)論是第二個(gè)命題的 ，那么這兩個(gè)命題互逆命題，如果把其中一個(gè)命題叫做原命題，那么另一個(gè)命題叫做它的 .2、互逆定理：如果一個(gè)定理的逆命題也是 ，那么這個(gè)逆命題就是原來(lái)定理的逆定理.注意(1)：逆命題、互逆命題不一定是真命題，但逆定理、互逆定理，一定是真命題.(2)：不是所有的定理都有逆定理.自主學(xué)習(xí)診斷：如圖所示：(1)若∠A= ，則AC∥ED，( ).(2)若∠EDB= ，則AC∥ED，( ).(3)若∠A+ =1800，則AB∥FD，( ).(4)若∠A+ =1800，則AC∥ED，( ).
利用計(jì)算器進(jìn)行有理數(shù)的計(jì)算教案教學(xué)設(shè)計(jì)
計(jì)算器的面板是由鍵盤和顯示器組成的。顯示器是用來(lái)顯示輸入的數(shù)據(jù)和計(jì)算結(jié)果的裝置。顯示器因計(jì)算器的種類不同而不同，有單行顯示的，也有雙行顯示的。在鍵盤的每個(gè)鍵上，都標(biāo)明了這個(gè)鍵的功能。我們看鍵盤上標(biāo)有的鍵，是開(kāi)機(jī)鍵，在開(kāi)始使用計(jì)算器時(shí)先要按一下這個(gè)鍵，以接通電源，計(jì)算器的電源一般用5號(hào)電池或鈕扣電池。再看鍵，是關(guān)機(jī)鍵，停止使用計(jì)算器時(shí)要按一下這個(gè)鍵，來(lái)切斷計(jì)算器的電源，是清除鍵，按一下這個(gè)鍵，計(jì)算器就清除當(dāng)前顯示的數(shù)與符號(hào)。的功能是完成運(yùn)算或執(zhí)行命令。是運(yùn)算鍵，按一下這個(gè)鍵，計(jì)算器就執(zhí)行加法運(yùn)算。
初中語(yǔ)文?？汲Ｒ?jiàn)的別詞、別字教案教學(xué)設(shè)計(jì)
1、三年的汗水，終于有了回報(bào)。站在領(lǐng)獎(jiǎng)臺(tái)上，她興奮得不能自己，淚水刷刷地流了下來(lái)。誤：不能自己 正：不能自已[bù néng zì yǐ] 2、燈光下面，人頭攢動(dòng)。這條街上陳列的，其實(shí)大都是膺品，但還是熱鬧非凡。誤：膺品 正：贗品[yàn pǐn]3、待學(xué)生從農(nóng)村基地回來(lái)時(shí)，校舍已修茸一新，三幢大樓披上了節(jié)日的盛裝。誤：修茸 正：修葺[xiū qì] 4、埋伏在左側(cè)的三連，聽(tīng)到?jīng)_鋒號(hào)響，尤如猛虎下山，直撲敵人陣地。誤：尤如猛虎下山 正：猶如猛虎下山[yóu rú] 5、粗制濫造，哄抬市價(jià)，這種竭澤而魚(yú)的做法，最后必然會(huì)讓自己受到懲罰。誤：竭澤而魚(yú) 正：竭澤而漁[jié zé ér yú] 6、自從鋼琴熱掀起后，鋼琴教師身價(jià)倍增，一批“三腳貓”也混跡其中，濫芋充數(shù)。誤：濫芋充數(shù) 正：濫竽充數(shù)[làn yú chōng shù] 7、陽(yáng)光穿射而入，配著店堂排列得整整齊齊的書(shū)架，真是一個(gè)書(shū)香花香陽(yáng)光普照的世外桃園。誤：世外桃園 正：世外桃源[shì wài táo yuán]8、在調(diào)查過(guò)程中，陳又將大批贓款轉(zhuǎn)移至岳父處，專案組找他談話時(shí)，他依舊裝得若無(wú)其事。誤：臟款 正：贓款[zāng kuǎn]
二年級(jí)音樂(lè)欣賞貓和老鼠教案教學(xué)設(shè)計(jì)
阿倫.科普蘭是美國(guó)現(xiàn)代音樂(lè)的倡導(dǎo)者，1920年創(chuàng)作的《貓和老鼠》是一首音樂(lè)形象鮮明，詼諧有趣的鋼琴演奏曲。樂(lè)曲栩栩如生的表現(xiàn)了貓捉老鼠的情景，不協(xié)和和弦以及多變的節(jié)奏，使作品充滿了現(xiàn)代的氣息。樂(lè)曲由引子、A、B、A、尾聲組成。引子中速貓的主題。貓驕傲的懶洋洋的走向高處，兇險(xiǎn)的目光窺視周圍。第一樂(lè)段開(kāi)始速度非?？?，刻畫(huà)了老鼠的形象。接著貓?jiān)谖葑永锢淠难惨?，老鼠靈巧的跑來(lái)跑去，一場(chǎng)貓捉老鼠的游戲開(kāi)始了。第二樂(lè)段老鼠得意的逃掉了，它，輕快的跑上跑下。遠(yuǎn)處傳來(lái)教堂鐘聲的回響。貓懶洋洋的自我陶醉，老鼠見(jiàn)狀，極其靈巧的故意挑逗貓。第三樂(lè)段貓?jiān)俅螕湎蚶鲜螅@次老鼠終于被貓逮著了。美聲慢板送葬去曲，裝死的老鼠一瘸一拐的拖著殘腿悄悄的溜走了。在這部作品中作曲家運(yùn)用了自己獨(dú)特的“躍進(jìn)式”旋律，緊張不安的活躍節(jié)奏，快速的托卡塔（密集）音型、豐富的和聲運(yùn)用樸實(shí)清晰的色彩和富于廣度和深度的想象力。讓人仿佛看到貓和老鼠追逐、爭(zhēng)斗的情形。
《一百條裙子》閱讀課導(dǎo)讀教案教學(xué)設(shè)計(jì)
1、書(shū)中還有許多描寫旺達(dá)的片段，哪一處給你留下了深刻的印象呢？請(qǐng)同座位互相交流。全班交流。老師也想和大家一起分享一點(diǎn)感受。老師讀第13頁(yè)片段，并談感受。課件出示：孤單，被嘲笑者2、你有過(guò)被人嘲笑的經(jīng)歷嗎？談一談。旺達(dá)是怎樣面對(duì)同學(xué)們的嘲笑？3、轉(zhuǎn)學(xué)之后，十三班的同學(xué)們收到了她爸爸的來(lái)信。誰(shuí)愿意讀讀這封信？圣誕節(jié)來(lái)臨之際，旺達(dá)也寫來(lái)一封信。學(xué)生讀。讀完這兩封信，大家肯定感慨萬(wàn)千，一定有很多話想說(shuō)吧？全班交流課件出示：善良 寬容
豐富的圖形世界 展開(kāi)與折疊教案教學(xué)設(shè)計(jì)
設(shè)計(jì)意圖：題目1是判斷能否折疊形成立體幾何，本題可以研究學(xué)生對(duì)常見(jiàn)幾何體的把握是否成熟。題目2是考察正方體的展開(kāi)圖，一方面可以研究學(xué)生對(duì)幾何體的把握，另一方面可以引導(dǎo)學(xué)生思考，引出下面要學(xué)習(xí)的內(nèi)容。）學(xué)生預(yù)設(shè)回答：題目一：學(xué)生應(yīng)該很容易的說(shuō)出折疊后形成的立體圖形。題目二：①運(yùn)用動(dòng)手操作的方法，剪出題目中的圖形，折疊后對(duì)題目做出判斷。 ②利用空間觀念，復(fù)原展開(kāi)圖，發(fā)現(xiàn)6的對(duì)面是1，2的對(duì)面是4，5的對(duì)面是3，進(jìn)而做出判斷。教師引導(dǎo)語(yǔ)預(yù)設(shè)：① 當(dāng)學(xué)生運(yùn)用動(dòng)手操作的方法，可以讓學(xué)生動(dòng)手實(shí)踐一下，下一步再引導(dǎo)學(xué)生觀察正方體，發(fā)現(xiàn)規(guī)律。② 當(dāng)學(xué)生運(yùn)用空間觀念，教師要放慢語(yǔ)調(diào)，和學(xué)生一起想象，鍛煉學(xué)生空間想象能力。
三角形的有關(guān)證明 3 直角三角形教案教學(xué)設(shè)計(jì)
從課程內(nèi)容來(lái)看，本節(jié)課屬于“圖形與幾何”中“圖形的性質(zhì)”部分。依據(jù)課標(biāo)的要求，我從以下四個(gè)方面設(shè)定了課程目標(biāo)，分別是：1。知識(shí)技能：（1）掌握判定直角三角形全等的“斜邊、直角邊”定理。（2）已知一直角邊和斜邊，能用尺規(guī)作出直角三角形。2。數(shù)學(xué)思考：（1）經(jīng)歷探索、猜想、證明的過(guò)程，進(jìn)一步體會(huì)證明的必要性，發(fā)展推理能力和有條理的表達(dá)能力。（2）在探究過(guò)程中，滲透由特殊到一般的數(shù)學(xué)思想方法。3。問(wèn)題解決：能利用直角三角形的全等解決有關(guān)問(wèn)題。4。情感態(tài)度：通過(guò)學(xué)習(xí)，讓學(xué)生感受數(shù)學(xué)證明的嚴(yán)謹(jǐn)性，發(fā)展勇于質(zhì)疑、嚴(yán)謹(jǐn)求實(shí)的科學(xué)態(tài)度。
