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    教育論文

    活用多媒體信息技術優化數學課堂教學

    時間:2019年06月21日 所屬分類:教育論文 點擊次數:

    摘要:新課改下的數學課堂教學要求要以提升學生的學科素養為目標,以學生為主體開展多種形式的教學活動。因此,作為小學數學教師,我們應善于應用現代信息技術來輔助教學,提高數學課堂教學的實效性。 關鍵詞:多媒體;小學數學;學科素養 現代信息技術在改變

      摘要:新課改下的數學課堂教學要求要以提升學生的學科素養為目標,以學生為主體開展多種形式的教學活動。因此,作為小學數學教師,我們應善于應用現代信息技術來輔助教學,提高數學課堂教學的實效性。

      關鍵詞:多媒體;小學數學;學科素養

    成才之路

      現代信息技術在改變著生產生活的同時也給學校教育教學工作提供了便利。特別是多媒體信息技術,它方便教師運用多種形式給學生創設學習情境,并能提供豐富的學習資源,對學科教學產生了深遠影響。在傳統教學中,教學形式單一,無法充分調動學生的學習興趣,而在教學中應用多媒體信息技術,能夠更加直觀、形象地向學生呈現教學內容。

      這樣不僅僅能夠使知識更貼近學生的認知水平,也能夠創設學生喜歡的情境,使小學生很快進入角色。小學數學學科知識量逐年增加,對于學生抽象思維能力和邏輯思維能力的要求也在增高。在這種大環境下,為了更方便學生的學習,教師可以把多媒體信息技術和小學數學教學進行整合,貼近學生學習需求,優化課堂教學流程,進而提高課堂教學的實效性。

      一、應用多媒體信息技術,使數學更貼近生活

      數學知識的絕大部分內容都是源于生活,或者和生活有著密切的聯系。這不僅體現了數學的實用價值,也是學生感知數學進而喜歡上數學的重要途徑。新課改下強調情境式教學模式,構思情境的重要依據就是學生感知的生活情境,即生活中的數學,這對于學習和理解知識是非常有幫助的。應用多媒體信息技術,教師能夠通過多媒體的教學優勢給學生創設感興趣的生活情境,調動學生積極性,提高教學效果。

      例如,在教學“圓的認識”這一知識點時,一些概念不僅需要學生記住,更需要學生掌握。對此,教師可以利用多媒體設計這樣一個故事情境來吸引學生注意:運動會上,小動物們要騎著不同形狀車輪的自行車進行比賽,主要有方形、圓形、橢圓形甚至還有三角形,那么騎哪一輛車的動物會勝出呢?這時,教師就可以利用多媒體呈現這樣的場景(用特寫鏡頭的辦法把不同設計的自行車輪子一一展示,引發學生的質疑與思考)。

      隨著小猴一聲槍響,激烈的比賽開始了,但很快分出了勝負。這時,教師可以讓學生去討論原因。這樣,我們很快就把圓的概念、特點、直徑、圓心等問題融入進來,使學生認識到了圓的基本特性,激發了學生的學習積極性和興趣,也達到了設疑和促思的目的。可以說,這很成功達到了信息技術輔助數學課堂教學的良好效果。

      二、應用多媒體信息技術,形象化地呈現知識

      數學學科本身就是一門邏輯性較強,且十分抽象的學科,對學生思維能力要求較高。部分數學知識枯燥乏味,使得一些小學生在學習數學的過程中望而生畏。從學生認知的規律來看,要想掌握知識,他們一定要經過感性認識上升到理性認識的過程。所以,作為小學數學教師,我們要結合小學生年齡特點和思維能力水平,生動形象地向學生呈現所學。這樣不僅能夠加深學生對于知識的印象,也能夠深化對于知識的理解。

      三、樂用多媒體——轉變學生的學習方式

      數學課程標準指出:現代信息技術要“致力于改變學生的學習方式,使學生樂意并有更多的精力投入到現實的、探索性的數學活動中去”。學生通過各種現代化媒介獲取信息、幫助思考、促進學習。實際上,多媒體信息技術作為可以借助的工具能夠改變之前學生只是在上課過程中聽講然后做題的單一模式,而是給學生提供動手、動腦、探究和思考的機會。有些時候,我們可以鼓勵學生去按照自己對于知識的思考和理解來呈現自己的見解。這樣既符合新課改的理念,也能夠全面提升學生的綜合素養。

      同時,新課改要求教師要從培養學生數學素養的角度出發來開展有效教學。應用多媒體信息技術,把知識與能力的培養都融入其中,也在真正意義上尊重學生的創造性,充分挖掘學生的潛力,促進生生、師生之間的交流與合作,使不斷提出問題、解決問題的學習成為可能。

      四、善用多媒體——提高學習效率

      運用自制的多媒體課件進行輔助教學,的確在備課環節需要花費大量的時間和精力,然而課前的精心準備和設計,卻能使課堂容量加大,效率提高。在必要時教師只要一點擊鼠標,在這彈指一揮間數學知識的發生發展過程便直觀形象地演示出來,并且在演示的過程中教師還可以控制演示的速度或添加停頓,既能流暢揭示新知,又能根據本班實際情況進行知識的再現,還可以為以后復習鞏固所用。自制的多媒體課件使課堂教學生動有趣,內容廣泛。

      有效運用多媒體信息技術,能使數學教師從繁瑣的板書和對基本知識的重復介紹中解放出來,擁有了更多的時間和空間與學生進行合作交流,互動學習,最大限度地優化了教學過程,提高了課堂教學校率。總之,現代教育的發展要求我們教師在小學數學課堂教學中要更新觀念,緊跟新時代發展的步伐,將現代化的教育教學手段與各個學科完美結合,立足于學生的實際需求,立足于調動學生參與課堂的積極和主動性,更好地發揮學生作為教學主體的作用。這樣才能夠實現教學相長,才能夠打造更加高效的小學數學課堂。

      參考文獻:

      [1]姚鎖寧.運用現代信息技術構建數學高效課堂[J].中國信息技術教育,2010(2).

      [2]焦曉陽.多媒體輔助數學教學的優勢[J].成才之路,2012(15).

      相關刊物推薦:成才之路被全國廣大讀者譽為“學生的知音,教師的參謀,父母的助手”。從興、情感、動機、意志、性格等非智力因素入手。服務校園、服務社會,是我們堅定的辦刊宗旨。

      

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