分式的基本性質(一)





知識

技能
1,理解并掌握分式的基本性質;
2,利用分式的基本性質對分式進行"等值"變" />

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歡迎您訪問分數的基本性質教學設計及反思:分式的基本性質授課教案詳細!

分數的基本性質教學設計及反思:分式的基本性質授課教案詳細

更新時間:2021-06-11 01:50:01作者:admin2

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分式的基本性質(一)





知識

技能
1,理解并掌握分式的基本性質;
2,利用分式的基本性質對分式進行"等值"變形;
3,了解分式約分的步驟和依據,掌握分式約分的方法
過程

方法
1,能類比分數的基本性質,推測出分式的基本性質;
2,通過思考,研討等活動,發展學生實踐能力和合作意識.
情感態度

價值觀
通過類比分數的基本性質及分數的約分,推測出分式的基本性質,約分,在學生已有數學經驗的基礎上,提高學生學數學的樂趣.
教學重點
1,分式的基本性質;2,利用分式的基本性質約分.
知識難點
分子,分母是多項式的分式的約分.
教具準備
電腦,課件,投影儀
教學環節
教學活動
設計意圖








出示問題:看如何做不同分母的分數加法.
+ = + = + =
這里將異分母化為同分母的依據是什么

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