导数的几何意义普通高中课程标准实验教科书海南华侨中学 张红选修22一：温故xy0A温故知新 诱发思考Bxy0C二：知新温故知新 诱发思考温故知新 诱发思考【实验观察,思维辨析】实验观察如图图，当点Pn（xn，yn）（n=1，2，3，4）沿着曲线线f（x）趋趋近点P （x0，y0）时时，割线线PPn的变变化趋势趋势 是什么？【观察发现，思维升华 】T当 时结论: 函数f(x)在x0点处的导数f(x0) 就是函数图像在该点处的切线的 斜率.即 f(x0)=k切线【学而习之，小试牛刀 】【学而习之，游刃有余 】例2：如图，它表示跳水运动中高度随时间变化 的函数 的图象。根据图象， 请描述比较曲线 在0.5秒、1秒、2秒附近的变 化情况。0th【课堂小结，回味悠长 】导数的几何意义：“以直代曲”的数学思想方法。【课后思考，巩固新知 】海南华侨中学数学组博客网址http:/my.hersp.com/600055/blog.aspxMLJIHGEDCBzyxwutsrponmkjihfedca98754320+-)*&%$#ZYWVUTRQPOMLKJHGFECBAzxwvusrqpnmlkihgfdcba87653210-)(*%$!#YXWVTSRQONMLJIHGEDCBzyxwutsrponmkjihfedca98754320+-(*&%!#ZYWVUTRQPOMLKJHGFECBAzxwvusrqpnmlkihgfdcba87653210-)(*%$!#YXWVTSRQONMLJIHGEDCBzyxwutsrponmkjihfedba98654310+-(*&%!#ZYWVUTRQPOMLKJHGFECBAzxwvusrqpnmlkihgfdcba87653210-)(*%$!#YXWVTSRQONMLJIHGEDCBzyxwutsrponlkjigfedba98654310+- (*&%!#ZYWVUTRQPOMLKJHGFECBAzxwvusrqpnmlkihgfdcba87653210-)(*%$!#YXWVTSRQONMLJIHGEDCBzyxvutsqponlkjigfedba98654310+-(*&%!#ZYWVUTRQPOMLKJHGFECBAzxwvusrqpnmlkihgfdcba87653210-)(*%$!#YXWVTSRQONMKJIHFEDCAzyxvutsqponlkjigfedba98654310+-(*&%!#ZYWVUTRQPOMLKJHGFECBAzxwvusrqpnmlkihgfdcba87653210-)(*%$!#YXWUTSRPONMKJIHFEDCAzyxvutsqponlkjigfedba98654310+-(*&%!#ZYWVUTRQPOMLKJHGFECBAzxwvusrqpnmlkihgfdcba8765321+- )(&%$!ZYXWUTSRPONMKJIHFEDCAzyxvutsqponlkjigfedba98654310+-(*&%!#ZYWVUTRQPOMLKJHGFECBAzxwvusrqpnmlkihgfdcb98764321+-)(&%$!ZYXWUTSRPONMKJIHFEDCAzyxvutsqponlkjigfedba98654310+-(*&%!#ZYWVUTRQPOMLKJHGFECBAzxwvusrqonmljihgedcb98764321+-)(&%$!ZYXWUTSRPONMKJIHFEDCAzyxvutsqponlkjigfedba98654310+-(*&%!#ZYWVUTRQPOMLKJHGFECBAyxwvtsrqonmljihgedcb98764321+-)(&%$!ZYXWUTSRPONMKJIHFEDCAzyxvutsqponlkjigfedba98654310+- %$!ZYXWUTSRPONMKJIHFEDCAzyxvutsqpomlkjhgfecba97654210+)(*&$!#ZXWVUSRQPNMLKIHGFDCBAyxwvtsrqonmljihgedcb98764321+-)(&%$!ZYXWUTSRPONMKJIHFEDBAzywvutrqpomlkjhgfecba97654210+)(*&$!#ZXWVUSRQPNMLKIHGFDCBAyxwvtsrqonmljihgedcb98764321+-)(&%$!ZYXWUTSRPONLKJIGFEDBAzywvutrqpomlkjhgfecba97654210+)(*&$!#ZXWVUSRQPNMLKIHGFDCBAyxwvtsrqonmljihgedcb98764321+- )(&%$#ZYXVUTSQPONLKJIGFEDBAzywvutrqpomlkjhgfecba97654210+)(*&$!#ZXWVUSRQPNMLKIHGFDCBAyxwvtsrqonmljihgedcb98764320+-)*&%$#ZYXVUTSQPONLKJIGFEDBAzywvutrqpomlkjhgfecba97654210+)(*&$!#ZXWVUSRQPNMLKIHGFDCBAyxwvtsrqonmljihgedca98754320+-)*&%$#ZYXVUTSQPONLKJIGFEDBAzywvutrqpomlkjhgfecba97654+-)*&%$#ZYXVUTSQPONLKJIGFEDBAzywvutrqpomlkjhgfecba97653210-)(*%$!#YXWVTSRQONMLJIHGEDCBzyxwutsrponmkjihfedca98754320+- )*&%$#ZYXVUTSQPONLKJIGFEDBAzywvutrqpomlkjhgfdcba87653210-)(*%$!#YXWVTSRQONMLJIHGEDCBzyxwutsrponmkjihfedca98754320+-)*&%$#ZYXVUTSQPONLKJIGFEDBAzywvusrqpnmlkihgfdcba87653210-)(*%$!#YXWVTSRQONMLJIHGEDCBzyxwutsrponmkjihfedca98754320+-)*&%$#ZYXVUTSQPONLKJIGFECBAzxwvusrqpnmlkihgfdcba87653210-)(*%$!#YXWVTSRQONMLJIHGEDCBzyxwutsrponmkjihfedca98754320+-)*&%$#ZYXVUTRQPOMLKJHGFECBAzxwvusrqpnmlkihgfdcba87653210- )(*%$!#YXWVTSRQONMLJIHGEDCBzyxwutsrponmkjihfedca98754320+-)*&%!#ZYWVUTRQPOMLKJHGFECBAzxwvusrqpnmlkihgfdcba87653210-)(*%$!#YXWVTSRQONMLJIHGEDCBzyxwutsrponmkjihfedca98754310+-(*&%!#ZYWVUTRQPOMLKJHGFECBAzxwvusrqpnmlkihgfdcba87653210-)(*%$!#YXWVTSRQONMLJIHGEDCBzyxwutsrponmkjigfedba98654310+-(*&%!#ZYWVUTRQPOMLKJHGFECBAzxwvusrqpnmlkihgba98654310+-(*&%!#ZYWVUTRQPOMLKJHGFECBAzxwvusrqpnmlkihgfdcba8764321+- )(&%$!ZYXWUTSRPONMKJIHFEDCAzyxvutsqponlkjigfedba98654310+-(*&%!#ZYWVUTRQPOMLKJHGFECBAzxwvusrqpnmljihgedcb98764321+-)(&%$!ZYXWUTSRPONMKJIHFEDCAzyxvutsqponlkjigfedba98654310+-(*&%!#ZYWVUTRQPOMLKJHGFECBAzxwvtsrqonmljihgedcb98764321+-)(&%$!ZYXWUTSRPONMKJIHFEDCAzyxvutsqponlkjigfedba98654310+-(*&%!#ZYWVUTRQPOMLKIHGFDCBAyxwvtsrqonmljihgedcb98764321+-)(&%$!ZYXWUTSRPONMKJIHFEDCAzyxvutsqponlkjigfedba98654310+- (*&%!#ZYWVUSRQPNMLKIHGFDCBAyxtrqpomlkjhgfecba97654210+)(*&$!#ZXWVUSRQPNMLKIHGFDCBAyxwvtsrqonmljihgedcb98764321+-)(&%$!ZYXWUTSRPONLKJIGFEDBAzywvutrqpomlkjhgfecba97654210+)(*&$!#ZXWVUSRQPNMLKIHGFDCBAyxwvtsrqonmljihgedcb98764321+-)(&%$!ZYXVUTSQPONLKJIGFEDBAzywvutrqpomlkjhgfecba97654210+)(*&$!#ZXWVUSRQPNMLKIHGFDCBAyxwvtsrqonmljihgedcb98764321+- )*&%$#ZYXVUTSQPONLKJIGFEDBAzywvutrqpomlkjhgfecba97654210+)(*&$!#ZXWVUSRQPNMLKIHGFDCBAyxwvtsrqonmlgfecba97654210+)(*&$!#YXWVTSRQONMLJIHGEDCBzyxwutsrponmkjihfedca98754320+-)*&%$#ZYXVUTSQPONLKJIGFEDBAzywvutrqpomlkjhgfecba97654210-)(*%$!#YXWVTSRQONMLJIHGEDCBzyxwutsrponmkjihfedca98754320+-)*&%$#ZYXVUTSQPONLKJIGFEDBAzywvutrqpomlkjhgfdcba87653210-)(*%$!#YXWVTSRQONMLJIHGEDCBzyxwutsrponmkjihfedca98754320+- )*&%$#ZYXVUTSQPONLKJIGFEDBAzywvutrqpnmlkihgfdcba87653210-)(*%$!#YXWVTSRMLKJHGFECBAzxwvusrqpnmlkihgfdcba87653210-)(*%$!#YXWVTSRQONMLJIHGEDCBzyxwutsrponmkjigfedba98654310+-(*&%!#ZYWVUTRQPOMLKJHGFECBAzxwvusrqpnmlkihgfdcba87653210-)(*%$!#YXWVTSRQONMLJIHGEDCBzyxwutsqponlkjigfedba98654310+-(*&%!#ZYWVUTRQPOMLKJHGFECBAzxwvusrqpnmlkihgfdcba87653210-)(*%$!#YXWVTSRQONMLJIHFEDCAzyxvutsqponlkjigfedba98654310+- (*&%!#ZYWVUTRQPOMLKJHGFECBAzxtsqponlkjigfedba98654310+-(*&%!#ZYWVUTRQPOMLKJHGFECBAzxwvtsrqonmljihgedcb98764321+-)(&%$!ZYXWUTSRPONMKJIHFEDCAzyxvutsqponlkjigfedba98654310+-(*&%!#ZYWVUTRQPOMLKJHGFDCBAyxwvtsrqonmljihgedcb98764321+-)(&%$!ZYXWUTSRPLKIHGFDCBAyx