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13、课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场光的折射是在学习光的传播及光的反射现象的
14、基础上进行的，是解释日常生活中许多光现象的基础，同时又是理解透镜成像的基础，所以本节是本单元教学的重点。而新教材将本节教学要求定位在认识光的折射规律上，注重学生的折射现象的感知、体验和折射规律的探究。光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.
15、MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场二、教学目标：光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 L
16、I.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场根据新课程全面提高学生素质的总体目标与教学大纲的要求和本节教材内容及学生已有的认知基础，我确定本节的三维学习目标如下：光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times N
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19、cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场2能用光的折射规律解释生活中的一些简单的折射现象；光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 1
20、0.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场3理解光在发生折射时，光路是可逆性。光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph;
21、 FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场过程与方法：光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph
22、; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场1通过认识折射现象，体验由折射引起的错觉光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY:
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24、P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场情感态度与价值观：光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050
25、429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场1初步领略折射现象的美妙，激发学生探索自然现象的兴趣；光的折射说课稿第 页光的折射说课
26、稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场2激发学生的求知欲，培养学生实事求是的科学
27、态度和乐于合作、善于交流的精神。光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽
28、吴谎肢铀追恒必霹耙磅场三、教学重点、难点分析：光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天
29、秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场重点：光的折射规律的推导。光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸
30、魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场难点：光的折射规律的应用。光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒
31、屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场四、教法学法光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营
32、柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场教法：光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹
33、憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场1教师通过小实验创设情境，激发学生的求知欲。光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞
34、盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场2教师当好课堂促进者，营造民主、和谐的探究氛围，鼓励学生自主体验、感悟、探究。光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTE
35、XT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场3配以多媒体课件辅助教学，将可见度不大的折射现象用动画演示出来。光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1
36、249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场学法：光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_124
37、9870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场学生是教学活动主体，要使学生从“学会”转化成“会学”，教师在教学中要注意学生学法的指导，根据本节的内容特征，在学生进行实验探究时，教师要注意引导学生如何去观察实验？并由他们总结和发现规律，同时注意学生的非智力因素：自信心、毅力、兴趣、动机等培养，通过手势、眼神、表情等形体语言来激发学生的积极性。使学生通过观察总结规律，联系实际、运用规律解释一些简单的折射现象。光的折射说课稿第 页
38、光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场四、教学过程：光的折射说课稿第
39、 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场（一）实验导入、创设情境（
40、小实验：“折射断笔”和“硬币显形”）光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉
41、鉴幽吴谎肢铀追恒必霹耙磅场通过由折射引起错觉的小实验，认识折射现象，引入新课，激起学生对光的折射现象探究的兴趣光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞
42、盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场（二）主动探究、构建知识（通过探究和动画演示突破本节重点）光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY
43、: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场小组实验1：（光从空气斜射入水中）光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormal
44、TEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场老师：鉴于光的折射现象实验可见度不大，所以在实验前先让学生明确观察目的和观察对象。水槽底部光斑的位置变化推断光在水中的传播方向的变化。并强调实验时，至少改变三次入射光线的角度，仔细观察入射光线改变后，水中的折射光线的又将怎样改变？记录实验结论光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE
45、: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场小组实验2：（光从空气垂直射入水中）光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideogra
46、ph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场学生：把光垂直射入水中，观察折射光线，判断折射角与入射角大小关系光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormal
47、TEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场（动画演示）讨论交流归纳出“光的折射规律”光的折射说课稿第 页光的折射说课稿 DIV.MyFav_124987005
48、0429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New Roman; TEXT-ALIGN: justifyDIV.MyFav_1249870050429 LI.MsoNormalTEXT-JUSTIFY: inter-id紧蛊咎迫磁锥畅假苫烙醛撰堰塞盯锁芭蕾驭缅称写愉帧韶终夸谭营柒屹憨抬光算俗厢脸魂斧藤秸铂偶拾天秒倚典念霉鉴幽吴谎肢铀追恒必霹耙磅场老师演示实验3：光路可逆。光的折射说课稿第 页光的折射说课稿 DIV.MyFav_1249870050429 P.MsoNormalTEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: Times New