日期:2022-01-02
這是怎樣教小朋友分時合式,是優秀的數學教案文章,供老師家長們參考學習。
本小節內容我從學生的生活經驗和已有知識出發,結合學生的生活實際和特點,創設生動有趣的情境,引導學生開展看一看、說一說、擺一擺等方式組織生動有趣的.活動,注重學生主動參與,讓孩子在數學活動中學習,在活動中思考,在數學活動中掌握基本的數學知識和,激發對數學的興趣,以及學好數學的愿望。
1、創設情境,激發學生的學習興趣。
興趣是學生主動學習的源動力,有了興趣,學習就不會成為負擔,而會成為一種執著的追求;有了興趣,學生才會去積極探索,才能積極地提出問題,才能創造性地運用知識,變苦為樂。要激發學生對數學的興趣,就要求教師組織富有成效的教學活動,為學學生創設積極思維的情景,這樣的課堂也才生動有味。
2、引導學生動手操作、自主探究。
動手操作、自主探究是學生直接獲取經驗知識的最好的途徑,它可以啟發學生積極參與思考,激發對數學的興趣與探索欲望。在教學這一節課時,我讓學生拿出9根小棒自己分記錄下來。通過操作、合作交流活動,使學生親身經歷知識形成的過程,體驗學習的快樂,同時能力也得到提高。
3、不足之處。
(1)、在"擺一擺、填一填"這一環節,給了學生自主探究、動手操作的機會,教師引導不夠、組織不到位,沒有向學生講明要求,致使有幾組的活動未正常開展,沒有突破難點達成學習目標。
(2)、在"看一看、說一說、填一填"這一環節,由于設置的內容較多,用時過長,影響了后面的教學。
活動目標:
1、學習按序將9分成不同的兩份,感知9的分合。
2、感知兩個部分數之間的互補關系?;顒又攸c:學習按序將9分成不同的兩份,感知9的分合。
活動難點:
感知兩個部分數之間的互補關系。
活動準備:
9朵不同的花。
活動過程:
一、復習8的組成教師:
師:這是8的分合式,你們發現了什么?(沒有填完整)
師:誰來填寫完整?(請幼兒來填寫完整)
二、學習9的組成。
1、出示教學掛圖。
師:你們瞧,圖上有什么?(小花)
師:這些花有什么不同?各有幾朵?(引導幼兒從大小、顏色、方位上觀察和講述,如上面有1朵花,下面8朵花)
師:誰能有順序地把剛才講的事記錄下來?(上面有1朵花,下面有8多花,9可以分成1和8。)
師:我們檢查一下是否有序,是什么樣的順序?請把分合式讀一遍。
師:這些花有幾種顏色?各有幾種?(有2朵黃色,7朵紅色,9可以分成2和7)
師:花的大小怎么樣?各有幾朵?(有3朵小的,6朵大,9可以分成3和6)
師:這些花的位置怎么樣?各有幾朵?(有4朵在左邊,5朵在右邊,9可以分成4和5)
師:8有幾種不同的分法?(7種)那9 分成不同的兩份有幾種不同的分法呢?(8種)剛剛我們一起列出了四種,那還有四種分法怎么分呢?(引導幼兒列出其他四組分法5和4、6和3、7和2、8和1)
2、觀看記錄的結果。
師:我們來一起看看兩組并排的.分合式,看看左邊的數和右邊的數有什么規律?(引導幼兒仔細觀察,知道9有8種分法,引導幼兒觀察,進一步感知分合的有序性和互補性。)
師小結:原來9總共有8種分法,我們一起來讀一讀?,F在我們知道了9分成兩份有8種分法,其實9分成兩份有四組不同的分法,后面的四組與前面四組重復。進一步引導幼兒發現其中分合的有序性(如將9分成1-8、2-7、3-6、4-5、5-4、6-3、7-2、8-1)。
三、活動結束,教師小結9的分合。
師小結:9分成兩份有8種分法,當左邊的部分數逐漸增多,右邊的部分數就會逐漸減少,但兩部分合起來和總數一樣多。
【活動目標】
1、在操作實物的基礎上,理解5的分合,并能用語言清楚的表達。
2、嘗試用數學的方法記錄自己的操作結果。
3、培養幼兒比較和判斷的能力。
4、培養幼兒相互合作,有序操作的'良好操作習慣。
【活動準備】
記錄單,筆,種子、撲克。
【活動過程】
1、游戲:分種子,引出題目。
?。?)一共有5顆種子,要分成2份,應該怎么辦,一共有幾種分法?請你去試一試。
(2)幼兒從盤子里取5粒種子進行嘗試,并把分好的結果記錄下來。
2、學習5的分合。
(1)交流操作結果,請幼兒介紹自己是怎么分的?教師記錄。
?。?)小結5一共有幾種分法?
3、用數字記錄5的分合。
嘗試用數字來記錄操作結果,記錄完成后念念分合式。
4、游戲:“撲克數字碰碰碰”。
復習5的組成.
小百科:5是4與6之間的自然數,是第3個質數,它還是圓周率的第4、第8、第10位小數。與漢語中的“五”同義,但和“吾”不同義。
Teaching aims and demands
1. Look through the questions before the listening to the article .
2. Students can record some simple information according to the listening materials。
3. Students can learn to ask for help and respond to others in English.
4. Students can learn to how to obtain useful information by using Internet .
Teaching methods
1. Task-based teaching
2. Co-operative learning
Teaching aids
Multimedia
Teaching procedures
(Boys and girls, pay attention, please! Before having our English class, I have something important to say. I will divide you into four groups, Group1, Group2, Group3, Group4, I have prepared some presents for you , are you ready? Ok, Let’s begin our class.)
Step One: Warming up (Brainstorm)
T: Boys and girls, Do you like travelling?
S: Yes.
T: I like travelling, too. I will show you some pictures quickly. Please tell me what places of interest you have seen.
S: The Great Wall……
Step Two: Lead- in
T: Good! What do you think of these places?
S: They are wonderful.
T: Would you like to go to these beautiful places?
S: Yes.
T; But We don’t have enough money, can we go travelling?
S: Yes.
T: How can we go travelling?
S: We can travel online.
Step Three: Procedure
Task One (how to use the website)
T: Excellent. You are all smart. If we travel online, we will use the website. Do you know how to use the website?
S: Ok.
T: For example, I want to get some information about the Great Wall, could you teach me?
S:First, we open the search engine ,then type the Great Wall into the blank ,then click on the icon. Now there are many websites, you can choose any website you like and click on it.
T: Thank you! If I want to find some pictures about the Great Wall, what shall I do?
S: You can click on the “Picture” icon.
T: Oh, I see. Wow, there are so many pictures about the Great Wall. I want to print this picture.(引出生詞print)
T: Now we know how to use the website. But Peter doesn’t know to use the website. Let’s help him. Please open your books and turn to page 43, finish Part A1.First, please go through the notes quickly, pay attention to the keywords. Now let’s begin.
(play the recording twice)
T: Let’s check the answers.
T: All of you did a good job.引出生詞mind的過程:舉例一、This boy ,would you mind reading the passage for us?
S: Of course not.
舉例二:Would you mind my opening the door?( If you don’t mind, you can sayOf course not./Not at all./ Certainly not. I f you mind ,you can say Sorry, you’d better not.)
T: Boys and girls, we have known how to use the website, do you know how to travel online?
S: No./Yes.
Task Two (speak up)
T: Now, Sandy and Millie are talking about travel online. Sandy has some questions. Would you like to help him? (Part B)
S: Yes.
T: Here are three questions, please read them by yourselves. Let’s listen to the recording (play the recording)
Ask students to answer my questions.
T: Read the conversation by yourselves. Do you have any questions?
S: Yes./ No.
T: I have a question
Task Three (make a conversation)
T: Now it’s time for you to make your conversation. Here are some icons and you can talk about them with your partner. Here is the model.
(ask students to act out their conversations)
T: Very good. We have known how to travel online. Boys and girls, where would you like to go online?
S: ……
T: I have a good place for you .Please watch a video and tell me which city it is about?
S: Sydney.
T: Yes. You are clever. Sydney is a seaside city. It’s close to the sea. It’s on the south-east coast of Australia.(舉三亞,練coast) What’s it?
S: It’s the Sydney Opera House.
T: What does it look like?
S: It looks like a ship with many sails(生詞)
T: Here are two kids. One is a boy, the other is a girl. The boy comes from Australia, he is Australian. What’s the boy doing?
S: He is skiing.
T: Can you guess what season it is in Australia?
S: It’s winter. T: What about in China?
S: It’s summer.
T: So we can say Australian seasons are the opposite of ours.(opposite)舉例…
T: Would you like to know more about Sydney?
S: Yes.
Task Four (T or F)
T: Now please do Part A2 “True or False”. Before listening, read the sentences quickly and pay attention to the keywords. Are you ready?
S: Yes.
T: Let’s begin. Listen twice.
T: Have you finished? Let’s check the answers. Volunteers? If you can, please put up your hands, you can win a red star for your group. If the sentence is true, you just read it. If the sentence is false, read first, then correct it. Do you understand?
S :…..
Task Five (fill in the blanks)
T: Here is an article about Australia. But there are some missing words in it. Please read the article first, then listen and complete Part A3. While listening to the recording, if you don’t have enough time to write down the whole word, you can write only one or two letters. I will ask two students come to the front and write down the answers. Volunteers? (xxx 1-5,xxx6-10) Now, let’s listen.
T: Would you like to listen again?
S: Yes.
T: Let’s check the answers. (注意詞匯的豐富性,number1, go on ,next….)
T: We have travelled abroad online. Boys and girls, have you been to Beijing?
S: Yes./No.
T: But I haven’t been to Beijing, could you show me around Beijing?
S: Yes.
Task Six (a competition)
T: Let’s have a competition. Here are three pictures of Beijing. You can choose any picture you like.
T: Excellent. All of you did a good job. Boys and girls, what do you think of online travel? Is it fast?
S: Yes
Task Seven (enjoy a passage)
T: I will share a passage about online travel with you. Here are three questions. Please read them first. Are you ready?
S: Yes.
T: Let’s go. Only listen once.
Task Eight (a discussion)
T: Online travel is popular. But in our daily life , people often go out for a trip .What kind of trip do you like better? Let’s have a discussion.
T: There is a famous saying Read ten thousand books, travel ten thousand miles. Do you know?
S: …..
T: Travelling is a good way to relax! Enjoy travelling! Enjoy life! Thank you !
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