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新人教版高中英語選修2Unit 1 Science and Scientists-Reading and thinking教學(xué)設(shè)計(jì)
Step 5： After learning the text, discuss with your peers about the following questions:1.John Snow believed Idea 2 was right. How did he finally prove it?2. Do you think John Snow would have solved this problem without the map?3. Cholera is a 19th century disease. What disease do you think is similar to cholera today?SARS and Covid-19 because they are both deadly and fatally infectious, have an unknown cause and need serious public health care to solve them urgently.keys:1. John Snow finally proved his idea because he found an outbreak that was clearly related to cholera, collected information and was able to tie cases outside the area to the polluted water.2. No. The map helped John Snow organize his ideas. He was able to identify those households that had had many deaths and check their water-drinking habits. He identified those houses that had had no deaths and surveyed their drinking habits. The evidence clearly pointed to the polluted water being the cause.3. SARS and Covid-19 because they are both deadly and fatally infectious, have an unknown cause and need serious public health care to solve them urgently.Step 6: Consolidate what you have learned by filling in the blanks:John Snow was a well-known _1___ in London in the _2__ century. He wanted to find the _3_____ of cholera in order to help people ___4_____ it. In 1854 when a cholera __5__ London, he began to gather information. He ___6__ on a map ___7___ all the dead people had lived and he found that many people who had ___8____ (drink) the dirty water from the __9____ died. So he decided that the polluted water ___10____ cholera. He suggested that the ___11__ of all water supplies should be _12______ and new methods of dealing with ____13___ water be found. Finally, “King Cholera” was __14_____.Keys: 1. doctor 2. 19th 3.cause 4.infected with 5.hit 6.marked 7.where 8.drunk 9.pump 10.carried 11.source 12.examined 13.polluted 14.defeatedHomework: Retell the text after class and preview its language points
新人教版高中英語選修2Unit 1 Science and Scientists-Discovering useful structures教學(xué)設(shè)計(jì)
The grammatical structure of this unit is predicative clause. Like object clause and subject clause, predicative clause is one of Nominal Clauses. The leading words of predicative clauses are that, what, how, what, where, as if, because, etc.The design of teaching activities aims to guide students to perceive the structural features of predicative clauses and think about their ideographic functions. Beyond that, students should be guided to use this grammar in the context apporpriately and flexibly.1. Enable the Ss to master the usage of the predicative clauses in this unit.2. Enable the Ss to use the predicative patterns flexibly.3. Train the Ss to apply some skills by doing the relevant exercises.1.Guide students to perceive the structural features of predicative clauses and think about their ideographic functions.2.Strengthen students' ability of using predicative clauses in context, but also cultivate their ability of text analysis and logical reasoning competence.Step1: Underline all the examples in the reading passage, where noun clauses are used as the predicative. Then state their meaning and functions.1) One theory was that bad air caused the disease.2) Another theory was that cholera was caused by an infection from germs in food or water.3) The truth was that the water from the Broad Street had been infected by waste.Sum up the rules of grammar:1. 以上黑體部分在句中作表語。2. 句1、2、3中的that在從句中不作成分，只起連接作用。 Step2: Review the basic components of predicative clauses1.Definition
新人教版高中英語選修2Unit 1 Science and Scientists-Learning about Language教學(xué)設(shè)計(jì)
Step 7: complete the discourse according to the grammar rules.Cholera used to be one of the most 1.__________ (fear) diseases in the world. In the early 19th century, _2_________ an outbreak of cholera hit Europe, millions of people died. But neither its cause, 3__________ its cure was understood. A British doctor, John Snow, wanted to solve the problem and he knew that cholera would not be controlled _4_________ its cause was found. In general, there were two contradictory theories 5 __________ explained how cholera spread. The first suggested that bad air caused the disease. The second was that cholera was caused by an _6_________(infect) from germs in food or water. John Snow thought that the second theory was correct but he needed proof. So when another outbreak of cholera hit London in 1854, he began to investigate. Later, with all the evidence he _7_________ (gather), John Snow was able to announce that the pump water carried cholera germs. Therefore, he had the handle of the pump _8_________ (remove) so that it couldn't be used. Through his intervention，the disease was stopped in its tracks. What is more, John Snow found that some companies sold water from the River Thames that __9__________________ (pollute) by raw waste. The people who drank this water were much more likely _10_________ (get) cholera than those who drank pure or boiled water. Through John Snow's efforts, the _11_________ (threaten) of cholera around the world saw a substantial increase. Keys： 1.feared 2.when 3. nor 4.unless 5.that/which 6.infection 7.had gathered 8.removed 9.was polluted 10.to get 11. threat
新人教版高中英語選修2Unit 1 Science and Scientists-Using langauge教學(xué)設(shè)計(jì)
This happens because the dish soap molecules have a strong negative charge, and the milk molecules have a strong positive charge. Like magnets, these molecules are attracted to each other, and so they appear to move around on the plate, taking the food coloring with them, making it look like the colors are quickly moving to escape from the soap.Listening text:? Judy: Oh, I'm so sorry that you were ill and couldn't come with us on our field trip. How are you feeling now? Better?? Bill: Much better, thanks. But how was it?? Judy: Wonderful! I especially liked an area of the museum called Light Games.it was really cool. They had a hall of mirrors where I could see myself reflected thousands of times!? Bill: A hall of mirrors can be a lot of fun. What else did they have?? Judy: Well, they had an experiment where we looked at a blue screen for a while, and then suddenly we could see tiny bright lights moving around on it. You'll never guess what those bright lights were!? Bill: Come on, tell me!? Judy: They were our own blood cells. For some reason, our eyes play tricks on us when we look at a blue screen, and we can see our own blood cells moving around like little lights! But there was another thing I liked better. I stood in front of a white light, and it cast different shadows of me in every color of the rainbow!? Bill: Oh, I wish I had been there. Tell me more!? Judy: Well, they had another area for sound. They had a giant piano keyboard that you could use your feet to play. But then, instead of playing the sounds of a piano, it played the voices of classical singers! Then they had a giant dish, and when you spoke into it, it reflected the sound back and made it louder. You could use it to speak in a whisper to someone 17 meters away.? Bill: It all sounds so cool. I wish I could have gone with you? Judy: I know, but we can go together this weekend. I'd love to go there again!? Bill: That sounds like a great idea!
新人教版高中英語選修2Unit 4 Journey Across a Vast Land教學(xué)設(shè)計(jì)
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．過去分詞(短語)作狀語時(shí)的幾種特殊情況(1)過去分詞(短語)在句中作時(shí)間、條件、原因、讓步狀語時(shí)，相當(dāng)于對(duì)應(yīng)的時(shí)間、條件、原因及讓步狀語從句。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，但農(nóng)民們?nèi)栽谵r(nóng)場(chǎng)干活。(2)過去分詞(短語)在句中作伴隨、方式等狀語時(shí)，可改為句子的并列謂語或改為并列分句。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)．他由母親陪著度過了一整個(gè)下午。
新人教版高中英語選修2Unit 5 First Aid-Discovering useful structures教學(xué)設(shè)計(jì)
You have no excuse for not going.你沒有理由不去。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。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？無生命名詞無論是作主語還是作賓語都不能用第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)在離開嗎？Excuse me for my not coming on time．很抱歉我沒能按時(shí)來。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給我們舉辦一場(chǎng)演唱會(huì)。
小學(xué)數(shù)學(xué)人教版四年級(jí)上冊(cè)《十進(jìn)制計(jì)數(shù)法》說課稿
(二)十進(jìn)制計(jì)數(shù)法1．新課引入．我們已經(jīng)學(xué)過億以內(nèi)的數(shù)及計(jì)數(shù)單位和億以內(nèi)的數(shù)位順序．在日常生活中還經(jīng)常用到比億大的數(shù)，例如我國(guó)人口約有12億，世界人口有50多億，銀行存款已超過百億等．你能從億接著往下數(shù)嗎？2．用算盤數(shù)數(shù)，認(rèn)識(shí)十億、百億、千億．可以在算盤上先撥上億，邊撥珠邊數(shù)：10個(gè)一億是十億，10個(gè)十億是一百億，10個(gè)一百億是一千億．分別板書：十億 百億 千億提問：你學(xué)過的個(gè)、十、百、千億，都是用來計(jì)數(shù)的，它們叫什么？(叫計(jì)數(shù)單位．)教師指出：十億、百億、千億和以前學(xué)習(xí)的個(gè)、十、百、千億一樣，都是計(jì)數(shù)單位．
高中數(shù)學(xué)對(duì)數(shù)函數(shù)教師說課稿
一、 教學(xué)目標(biāo)根據(jù)教學(xué)大綱的要求以及本節(jié)課的地位與作用，結(jié)合高一學(xué)生的認(rèn)知特點(diǎn)確定教學(xué)目標(biāo)如下：學(xué)習(xí)目標(biāo)：1、復(fù)習(xí)鞏固對(duì)數(shù)函數(shù)的圖像及性質(zhì)2、運(yùn)用對(duì)數(shù)函數(shù)的性質(zhì)比較兩個(gè)數(shù)的大小能力目標(biāo)：1、 培養(yǎng)學(xué)生運(yùn)用圖形解決問題的意識(shí)即數(shù)形結(jié)合能力2、學(xué)生運(yùn)用已學(xué)知識(shí)，已有經(jīng)驗(yàn)解決新問題的能力3、 探索出方法，有條理闡述自己觀點(diǎn)的能力
高中數(shù)學(xué)函數(shù)的概念教師說課稿
一、 引入課題1. 復(fù)習(xí)初中所學(xué)函數(shù)的概念，強(qiáng)調(diào)函數(shù)的模型化思想；2. 閱讀課本引例，體會(huì)函數(shù)是描述客觀事物變化規(guī)律的數(shù)學(xué)模型的思想：（1）炮彈的射高與時(shí)間的變化關(guān)系問題；（2）南極臭氧空洞面積與時(shí)間的變化關(guān)系問題；（3）“八五”計(jì)劃以來我國(guó)城鎮(zhèn)居民的恩格爾系數(shù)與時(shí)間的變化關(guān)系問題3. 引導(dǎo)學(xué)生應(yīng)用集合與對(duì)應(yīng)的語言描述各個(gè)實(shí)例中兩個(gè)變量間的依賴關(guān)系；4. 根據(jù)初中所學(xué)函數(shù)的概念，判斷各個(gè)實(shí)例中的兩個(gè)變量間的關(guān)系是否是函數(shù)關(guān)系．
小學(xué)數(shù)學(xué)人教版一年級(jí)下冊(cè)《分類與整理》說課稿
今天我說課的內(nèi)容是人教版一年級(jí)數(shù)學(xué)下冊(cè)第三單元《分類與整理》。我打算從說教學(xué)內(nèi)容、說教學(xué)目標(biāo)、說教學(xué)重難點(diǎn)、說教具準(zhǔn)備、說教法學(xué)法和說教學(xué)過程等方面進(jìn)行說課。一、 說教學(xué)內(nèi)容一年級(jí)數(shù)學(xué)下冊(cè)第三單元《分類與整理》要求學(xué)生在分類的基礎(chǔ)上用自己的方式呈現(xiàn)整理的結(jié)果，但又不是正式的學(xué)習(xí)統(tǒng)計(jì)圖和統(tǒng)計(jì)表，它是為以后學(xué)習(xí)統(tǒng)計(jì)圖和統(tǒng)計(jì)表打下基礎(chǔ)。二、 說教學(xué)目標(biāo)一年級(jí)的心理特點(diǎn)和有具體到抽象的認(rèn)知規(guī)律，我確定以下的教學(xué)目標(biāo)：1.使同學(xué)能按照給定的標(biāo)準(zhǔn)或自己選定的標(biāo)準(zhǔn)對(duì)事物進(jìn)行分類；能對(duì)分類結(jié)果進(jìn)行整理，能夠用自己的方式（文字、圖畫、表格等）呈現(xiàn)分類的結(jié)果；能對(duì)數(shù)據(jù)進(jìn)行簡(jiǎn)單的分析，能根據(jù)數(shù)據(jù)提出并回答簡(jiǎn)單的問題。2.在小組交流合作中學(xué)習(xí)，經(jīng)歷收集信息、分類、統(tǒng)計(jì)的過程，體會(huì)對(duì)同一事物按單一標(biāo)準(zhǔn)分類的一致性。三、說教學(xué)重難點(diǎn)根據(jù)教材的編排和學(xué)生年齡特點(diǎn)，我認(rèn)為本節(jié)課的重點(diǎn)是按單一標(biāo)準(zhǔn)對(duì)事物進(jìn)行分類，本節(jié)課的難點(diǎn)是對(duì)分類結(jié)果進(jìn)行整理，完成簡(jiǎn)單的統(tǒng)計(jì)活動(dòng)，也就是能根據(jù)結(jié)果提出問題，回答問題。針對(duì)本節(jié)課的重難點(diǎn)，我設(shè)計(jì)的突破方法是首先通過把黑板上圖形擺放整齊，讓學(xué)生體會(huì)分類的意義和作用，然后創(chuàng)設(shè)情境，讓學(xué)生在討論合作交流中體會(huì)按單一標(biāo)準(zhǔn)對(duì)事物進(jìn)行分類得到結(jié)果的一致性，最后對(duì)分類結(jié)果進(jìn)行整理，完成統(tǒng)計(jì)活動(dòng)。
北師大版小學(xué)數(shù)學(xué)四年級(jí)上冊(cè)《加法交換律和乘法交換律》說課稿
1、教學(xué)內(nèi)容。“加法交換律和乘法交換律”是北師大版《義務(wù)教育課程標(biāo)準(zhǔn)實(shí)驗(yàn)教課書》四年級(jí)上冊(cè)第四單元的內(nèi)容。書中把兩部分內(nèi)容編排在一起。在備課過程中，根據(jù)教學(xué)內(nèi)容和學(xué)情我先引導(dǎo)學(xué)生觀察發(fā)現(xiàn)加法交換律，然后在學(xué)生掌握加法交換律的基礎(chǔ)上遷移過來。讓孩子們大膽猜想，進(jìn)而驗(yàn)證，得出乘法交換律。2、加法、乘法交換律在數(shù)學(xué)學(xué)習(xí)中的作用。本單元所學(xué)習(xí)的幾條運(yùn)算定律，不僅適用于整數(shù)的加法和乘法，也適用于有理數(shù)的加法和乘法。隨著數(shù)的范圍的進(jìn)一步擴(kuò)展，在實(shí)數(shù)甚至復(fù)數(shù)的加法和乘法中，它們?nèi)匀怀闪?。因此，這些運(yùn)算定律在數(shù)學(xué)中具有重要的地位和作用，被譽(yù)為“數(shù)學(xué)大廈的基石”。而加法、乘法交換律又是這數(shù)學(xué)大廈基石中的基石。
幼兒園中班數(shù)學(xué)教案：分類
準(zhǔn)備： 1、紅、黃帽子各12頂，圍巾長(zhǎng)短各12條。 2、小貓、小狗、小鴨、小羊頭飾各1個(gè)，帶上帽子圍上圍巾的4種動(dòng)物各1個(gè)。 3、男、女、紅帽、黃帽，長(zhǎng)圍巾、短圍巾標(biāo)志各1個(gè)；紅帽－長(zhǎng)圍，紅帽－短圍，黃帽－長(zhǎng)圍，黃帽－短圍的小圖片各1張。1，2，3，4數(shù)字各1個(gè)，籃子4個(gè)過程： 一、幼兒自選帽子圍巾帶上 師：今天天氣真冷，這里有些帽子、圍巾，小朋友可以自己找一頂帽子帶上，找一塊圍巾圍上，帶以前請(qǐng)小朋友先看一下，你帶的是什么顏色的帽子，圍的是長(zhǎng)圍巾還是短圍巾。二、按物體的特征分類： 1．按物體的某一特征分類： 師：哈，帶上帽子，圍上圍巾，可真暖和。小貓、小狗、小鴨、小羊也都來了，他們也想和我們一起去公園玩呢?。ǔ鍪拘」奉^飾）小狗說：我們要去公園，得先分一下，哪些小朋友坐1號(hào)車，哪些小朋友坐2號(hào)車。（出示男孩、女孩頭飾）那就請(qǐng)男孩子坐1號(hào)車，女孩子坐2號(hào)車。（幼兒分好后，小狗檢查有沒有坐對(duì)）小雞說，不行不行，我不喜歡這樣分，我看還是紅帽子小朋友坐1號(hào)車，黃帽子小朋友坐2號(hào)車（幼兒分好后，小雞檢查有沒有坐對(duì)）小鴨說，不行不行，我不喜歡這樣分，我看還是圍長(zhǎng)圍巾小朋友坐1號(hào)車，圍短圍巾小朋友坐2號(hào)車（幼兒分好后，小鴨檢查有沒有坐對(duì)）
大班數(shù)學(xué)：趣味統(tǒng)計(jì)與分類課件教案
活動(dòng)目標(biāo)：通過實(shí)踐活動(dòng)，學(xué)會(huì)用自己的方法分類統(tǒng)計(jì)生活中物品的數(shù)量，從中體驗(yàn)數(shù)學(xué)的有趣及重要。活動(dòng)準(zhǔn)備：教師事先選擇好實(shí)踐的場(chǎng)地（幼兒園內(nèi)），并親自實(shí)踐一遍做好記錄，心中有數(shù)；紙、筆?；顒?dòng)過程：（一）復(fù)習(xí)鞏固：1、你能從1數(shù)到幾？數(shù)數(shù)看。2、更快的數(shù)數(shù)方法：5個(gè)5個(gè)地?cái)?shù)，10個(gè)10個(gè)地?cái)?shù)。3、100以內(nèi)的隨便一個(gè)數(shù)你會(huì)寫嗎？試試看（請(qǐng)幾個(gè)幼兒到黑板上聽寫）。（注：此環(huán)節(jié)的目的在于教師了解幼兒在實(shí)踐活動(dòng)中必備的一些相關(guān)知識(shí)掌握如何，以便在活動(dòng)中更好地把握。）（二）聯(lián) 系生活：1、在生活中，你碰到什么東西要用數(shù)來數(shù)？舉例子。2、在幼兒園里也藏了許多數(shù)，請(qǐng)小朋友們說說。3、用什么方法統(tǒng)計(jì)方便？（每5個(gè)或10個(gè)記錄一次，然后5個(gè)5個(gè)或10個(gè)10個(gè)地?cái)?shù)；列表統(tǒng)計(jì)等）
人教版高中地理選修3第五章第一節(jié)設(shè)計(jì)旅游活動(dòng)教案
點(diǎn)撥：旅游地旅游資源的特色不同，可以安排的旅游活動(dòng)是不一樣的，直接影響對(duì)旅游者的吸引力。因此，出游前首先就需要收集旅游地旅游資源的類型、主要游覽景區(qū)、景點(diǎn)的特色等情況。旅游地的時(shí)空可達(dá)性直接關(guān)系到旅游者從出發(fā)地到旅游地，然后再返回出發(fā)地的費(fèi)用和時(shí)間。一般來說，居住地與旅游地之間的空間距離過大，會(huì)使旅行的時(shí)間過長(zhǎng)、旅行費(fèi)用過高，經(jīng)濟(jì)距離增加，相應(yīng)地降低了旅游者的出游能力。而居住地與旅游地相距遙遠(yuǎn)，也意味著兩地之間巨大的環(huán)境差異，這會(huì)增加對(duì)游客的吸引力。旅游服務(wù)設(shè)施和條件，如旅游交通方式及工具、旅游住宿條件、旅游餐飲的種類和標(biāo)準(zhǔn)、導(dǎo)游服務(wù)、旅行費(fèi)用等信息也都在一定程度上影響著游客的選擇。圖5．3西藏布達(dá)拉宮和圖5．4云南香格里拉兩幅圖片顯示了西藏布達(dá)拉宮、云南香格里拉與眾不同的優(yōu)美景觀，吸引了眾多的游客前來觀光旅游，成為近年來國(guó)內(nèi)旅游的熱點(diǎn)。
高中數(shù)學(xué)函數(shù)的奇偶性教師說課稿
2．學(xué)情分析從學(xué)生的認(rèn)知基礎(chǔ)看，學(xué)生在初中已經(jīng)學(xué)習(xí)了軸對(duì)稱圖形和中心對(duì)稱圖形，并且有了一定數(shù)量的簡(jiǎn)單函數(shù)的儲(chǔ)備。同時(shí)，剛剛學(xué)習(xí)了函數(shù)單調(diào)性，已經(jīng)積累了研究函數(shù)的基本方法與初步經(jīng)驗(yàn)。從學(xué)生的思維發(fā)展看，高一學(xué)生思維能力正在由形象經(jīng)驗(yàn)型向抽象理論型轉(zhuǎn)變，能夠用假設(shè)、推理來思考和解決問題．
人教版新課標(biāo)小學(xué)數(shù)學(xué)一年級(jí)上冊(cè)分類教案
教學(xué)目標(biāo)：1．能選擇不同的標(biāo)準(zhǔn)對(duì)同一類物品進(jìn)行不同的分類，掌握分類的方法。2．初步感知不同標(biāo)準(zhǔn)分類的意義，體驗(yàn)分類結(jié)果在不同標(biāo)準(zhǔn)下的多樣性。3．培養(yǎng)學(xué)生思維的靈活性和發(fā)散性，養(yǎng)成良好的學(xué)習(xí)、生活習(xí)慣。4．培養(yǎng)學(xué)生的操作能力、觀察能力、判斷能力、語言表達(dá)能力和合作交流的意識(shí)。5．讓學(xué)生體會(huì)到生活中處處有數(shù)學(xué)，學(xué)會(huì)用學(xué)到的知識(shí)解決生活中的實(shí)際問題。教學(xué)重、難點(diǎn)：重點(diǎn)：選擇不同標(biāo)準(zhǔn)分類難點(diǎn)：思維的發(fā)散性 關(guān)鍵：在直觀中拓展思維的時(shí)空教學(xué)準(zhǔn)備：鉛筆、實(shí)物卡片、學(xué)具袋（各種形狀、顏色各異的物品）教學(xué)過程：一、觀察分析 多重分類1．師出示如書本P39頁的鉛筆。（1）觀察這些鉛筆有什么不同？并把它們分分類。（2）四人一小組交流、討論可以怎么分類？是按什么分的？比比哪一組的分法最多。
幼兒園中班數(shù)學(xué)教案：按標(biāo)記分類
2、通過“送圖形寶寶回家”的游戲，根據(jù)圖形的三個(gè)特征進(jìn)行分類?！ ?3、積極參與數(shù)學(xué)游戲，體驗(yàn)數(shù)學(xué)游戲的樂趣。 活動(dòng)準(zhǔn)備： 1、教具：大骰子三個(gè)，貼好標(biāo)記?！ ?2、學(xué)具： （1）各種圖形若干?！ ?（2）貼有標(biāo)記的小骰子人手三個(gè)，各種圖形每組一份，人手一只小籮筐。 （3）貼有三個(gè)標(biāo)記的大籮筐若干，連成一列火車?！ 』顒?dòng)過程： 一、來了一群圖形寶寶，看有哪些圖形寶寶?復(fù)習(xí)學(xué)過的圖形?！ ?教師在黑板上出示各種圖形，請(qǐng)幼兒集體或個(gè)別回答，說出圖形的名稱和特征?！ ?如：紅顏色的三角形；黃色的正方形等等。要求幼兒能說出圖形的特征?！ 《蛨D形寶寶找朋友。按三個(gè)特特征選擇圖形?！ ?師：圖形寶寶要去旅游，想請(qǐng)我們幫她們找朋友。怎么找呢？老師給小朋友準(zhǔn)備了三個(gè)骰子，我們可以請(qǐng)骰子來幫忙。
數(shù)據(jù)的整理教案教學(xué)設(shè)計(jì)
一、課前準(zhǔn)備師：同學(xué)們想一想，你同父母一起去商店買衣服時(shí)，衣服上的號(hào)碼都有哪些，標(biāo)志是什么？學(xué)生：我看到有些衣服上標(biāo)有M、S、L、XL、XXL等號(hào)碼．但我不清楚代表的具體范圍，適合什么人穿，但肯定與身高、胖瘦有關(guān)．師：這位同學(xué)很善動(dòng)腦，也愛觀察．S代表最小號(hào)，身高在150~155cm的人適合穿S號(hào)．M號(hào)適合身高在155~160cm的人著裝……廠家做衣服訂尺寸也并不是按所有人的尺寸定做，而是按某個(gè)范圍分組批量生產(chǎn)．你覺得這種生產(chǎn)方法有什么優(yōu)點(diǎn)？學(xué)校要為同學(xué)們訂制校服，為此小明調(diào)查了他們班50名同學(xué)的身高，結(jié)果(單位cm)．如下
有理數(shù)復(fù)習(xí)教案教學(xué)設(shè)計(jì)
3）乘除運(yùn)算①有理數(shù)的乘法法則：（老師給出，學(xué)生一起朗讀）1. 兩數(shù)相乘，同號(hào)得正，異號(hào)得負(fù)，并把絕對(duì)值相乘；2. 任何數(shù)與零相乘都得零；3. 幾個(gè)不等于零的數(shù)相乘，積的符號(hào)由負(fù)因數(shù)的個(gè)數(shù)決定，當(dāng)負(fù)因數(shù)有奇數(shù)個(gè)數(shù)，積為負(fù)；當(dāng)負(fù)因數(shù)的個(gè)數(shù)為偶數(shù)個(gè)時(shí)，積為正；4. 幾個(gè)有理數(shù)相乘，若其中有一個(gè)為零，積就為零。②有理數(shù)的除法法則：（老師提問，學(xué)生回答）1. 兩個(gè)有理數(shù)相除，同號(hào)得正，異號(hào)得負(fù)，并把絕對(duì)值相除；2. 除以一個(gè)數(shù)等于乘以這個(gè)數(shù)的倒數(shù)。③關(guān)系（老師給出）除法轉(zhuǎn)化為乘法進(jìn)行運(yùn)算。
人教版新課標(biāo)小學(xué)數(shù)學(xué)四年級(jí)上冊(cè)角的分類和畫法說課稿
（三）應(yīng)用知識(shí)，解決問題?！皩W(xué)以致用”，新知識(shí)一旦形成，務(wù)必應(yīng)用它來解決問題，使它進(jìn)一步形成技能，技巧，心理學(xué)研究表明：學(xué)用結(jié)合是提高深化學(xué)生鞏固知識(shí)的重要環(huán)節(jié)，所以設(shè)計(jì)以下練習(xí)：（略）（四）全課小結(jié)：這節(jié)課我們學(xué)習(xí)什么內(nèi)容？角可以分為哪幾類？怎樣用量角器畫指定度數(shù)的角呢？課外延伸：學(xué)生收集不同的角，下節(jié)課比一比誰找得最多。（五）學(xué)生互相評(píng)價(jià)，自己評(píng)價(jià)自己，（互評(píng)，自評(píng)）六、說板書設(shè)計(jì)板書內(nèi)容是一節(jié)課的精髓，能體現(xiàn)教學(xué)內(nèi)容和教學(xué)重點(diǎn)，反映教學(xué)思維的過程。七、說教學(xué)評(píng)價(jià)。本課時(shí)的教學(xué)，我大膽組織教材，層次分明，重點(diǎn)突出，分散難點(diǎn)，始終圍繞著教學(xué)目標(biāo)進(jìn)行教學(xué)。導(dǎo)入新穎，創(chuàng)設(shè)情景，使學(xué)生進(jìn)入有序思維，首尾呼應(yīng)志趣相融，整個(gè)教學(xué)過程注重學(xué)生參與，充分體現(xiàn)以學(xué)生為主體的作用，本節(jié)課板書大方，一目了然，各個(gè)環(huán)節(jié)銜接合理。