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      歡迎來到原中小學教育資源網!

      玻意耳定律物理說課稿

      說課稿 時間:2019-07-04 我要投稿
      【www.51cxty.com - 說課稿】

        此次教學活動安排在一中學借班教學,老師和學生互不相識,兩所學校學生之間學習基礎和習慣都有較大的差異,教學環境、實驗器材也有所不同,所以給本課的準備階段帶來一定的困難,而且在實施階段存在某些不確定因素。

        本節課是氣體的壓強與體積的關系的第二節新授課,玻意耳定律是學生學習的第一個氣體實驗定律,第一次分析氣體狀態參量的定量變化,對學生進一步學習查理定律和理想氣體的狀態方程都有重要作用,同時也能培養學生通過觀察來研究物理問題的思想方法。

        重點、難點分析

        1.本節的重點內容是做好得出玻意耳定律的dis實驗。由于我們學校沒有配備標準化的dis實驗室,老師只能用一套設備作演示實驗,讓學生觀察并記錄數據,從而有說服力地歸納出等溫條件下壓強與體積的關系,即可順理成章地得出玻意耳定律的基本關系式。因此,熟練且準確地操作實驗就是本課的關鍵點。同時,也只有講清實驗裝置、原理和圓滿地完成實驗才能使學生體會到物理學研究的方法,才能達到掌握方法、提高素質的目標。

        2.玻意耳定律的表達式簡單完美,記住并不難。但要全面、深入理解該定律中各物理量的意義和相互關聯,牢固掌握定律的物理意義和廣泛的應用前景,對學生來說是較困難的。所以專門選擇生活中的實例來加以分析,是學生對抽象的公式

        教學主要環節 本設計采用情景——活動——問題——歸納——應用的模式組織教學,整個教學過程可分為三個主要的教學環節:

        第一環節,通過情景和學生參與的演示實驗,定性得到壓強與體積的關系。

        第二環節,通過DIS實驗,定量得到壓強與體積之間的關系,并通過歸納總結,得出玻意耳定律。

        第三環節,通過生活中的實例分析,初步掌握玻意耳定律得應用。

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