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          小學 一年級上冊 一年級下冊 二年級上冊 二年級下冊 三年級上冊 三年級下冊 四年級上冊 四年級下冊 五年級上冊 五年級下冊 六年級上冊 六年級下冊

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        小學數學有效課堂教學探究    發布時間:2019-08-12 23:50:57
        小學數學有效課堂教學探究
        摘要:本文重點探討了對于新課標背景之下的小學數學課堂的有效性的研究,主要描述了選擇合適的生活情境、合理適當地運用網絡平臺的幫助、提高小學生的數學審題能力的探究方法,這些都可以幫助創建有效的小學數學課堂,提高學生的學習效率,提高課堂的質量。
        關鍵詞:小學;數學;有效課堂;探究
        隨著社會經濟的不斷發展,政府對小學生的教育發展越來越重視。而小學數學作為一門非常重要的基礎學科,自然也需要不斷地改進。新背景下的小學數學課堂的教學不單單只是教學生知識,更應培養學生的道德素養,提高學生的數學思維能力,激發學生的積極思考,加強學生的創新能力,這樣的課堂才是更為高效有質量的。
        1選擇合適生活情境,引導小學數學理解
        小學生的年齡普遍較小,但是比較活潑,思維非常活躍,可惜缺乏生活的閱歷,生活經驗不足,所以學生只樂于和自己較為熟知的東西打交道。因此,教師應該設計出一些和學生生活較為貼合的情境,以便于學生更好地理解數學的重點難點知識。教師在講一個知識點時,最好舉出一些和學生生活密切相關的例子,這樣學生才能更好地理解教師所講的知識點。例如,教師在講數字的加法時,可以舉出這樣一個例子幫助學生理解:學校會在春天或者秋天的時候會組織學生去農場的大棚里摘草莓,但是學校只可以借到兩輛車載學校去,而每輛車可以載七十人,但是整個年級一共有四個班,分別有三十二、三十四、三十五、三十六人,那么該如何安排使所有的學生都能坐上車去摘草莓。教師可以把所有的學生分成幾個小組,小組內進行討論,得出一個合適的辦法。學生可以給出三個解決辦法,第一個是一班二班一起乘一輛車,三班四班一輛車,第二個辦法是一班和三班同乘一輛車,二班和四班一起,最后一種方法就是一班四班一起,二班和三班一起。在學生和教師說完自己的方法之后,教師就可以引導學生去思考哪一種方法是最合適最方便的,讓學生進行進一步的思考。這樣學生就對兩位數的加法有了更深一步的認識,對數學知識的理解也更為透徹。
        2合理運用網絡平臺,優化小學數學教學
        教師應運用多媒體網絡平臺激發學生的學習興趣。俗話說,興趣是最好的教師,它是推動小學生學習小學數學的長期動力。小學生現在心智尚未成熟,對事物的認知僅浮于表面,所以,他們學習數學的興趣和教師教學的方式有著很大的聯系。因此,要想提高小學數學的課堂效率,教師因從學生的學習特點出發,充分運用網絡平臺,以生動形象的動畫或者圖片刺激學生的感官,視聽結合,展現數學原理的形成和特點,以此增加數學學習的樂趣,激發學生學習數學的興趣。比如《線段、射線、直線》的教學中,如果只是教師單純地在黑板上邊畫邊講。學生必然會覺得無聊。教師就可以在屏幕上展現出一組圖形,讓學生辨識線段和直線。然后,讓線段慢慢向左或向右延伸成射線,讓學生感悟到射線的形成過程。網絡媒體上動態的演示過程,沖擊了學生的感官,刺激了學生的興奮神經,引起學生的探求熱情。教師還可以應用網絡平臺將復雜的知識簡單化,便于學生對復雜知識理解。小學生年紀較小,理解能力普遍較差,有時較為復雜的知識一時消化不了,多媒體就可以將復雜的知識里面深層次的內容層層剖析,把較為簡單的內容展現給學生。
        3培養學生審題能力,培養小學數學思維
        每一個學生所做的數學題目都是有中文漢字和數字組成的,所以學生若想要理解題目必須要先讀懂題目,而讀懂題目就需要一個學生具有良好的閱讀能力,這也需要學生學好語文這門學科。小學高年級的學生雖然認識許多漢字,也能把題目讀通,但這并不代表審題審得好,審題不止是把題目讀通順這么簡單,審題需要學生去仔細分析題目中的關鍵詞句,將題目中的關鍵的語句翻譯成數學里的等式或者是其中代表的數字條件。所以,學好語文,具備較好的閱讀理解能力是結局問題的一條捷徑,如果不具備,就會為你解決問題制造障礙。因此,教師在教授學生審題時,應向語文中的文字教學一樣,逐字逐句的和學生分析每個詞句代表的數學意義,教會學生如何將文字語言轉變成數字語言,這樣就能較好地培養學生的閱讀能力,學生日后也會在自己分析解題時就能夠較好的推敲題目并解決問題了。比如,小學的數學應用題中常會遇到相向而行和想背而行的問題,很多小學生經常會在這個問題上搞不清楚,教師就應該帶領學生分析相向和相背的具體區別,這樣學生以后也不會混淆。所以,良好的閱讀能力有助于更大程度地提升學生的數學審題能力,讓學生避免出現審題不清導致題目做錯的情況,學生的數學成績也會有很大的提高。在新課標的不斷發展下,教師、學生還有家長都對小學數學的課堂教學越來越重視,在小學數學方面打好良好的基礎是學生未來良好學習生活的根本。在實際的小學數學教學中,教師一定要根據每個學生的具體情況制定不同的課堂計劃,這樣才可能打造一個更高質量的數學課堂。因此,小學數學課堂將在教師學生的不斷努力變得越來越高效。
        參考文獻
        [1]于大偉.新背景下小學數學有效課堂教學探究[J].新課程小學,2016,(12):56-58.
        [2]繆曉幫.新課改背景下農村小學數學有效課堂的教學支點[J].未來英才,2015,(13):46.
        作者:劉立文 單位:長春市九臺區沐石河中心學校
         


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        上一篇:如何在小學數學教學中實施素質教育
        下一篇:淺談小學數學課堂教學中有效情境的創設



         

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