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1、教科版八年级物理1/7 教科版八年级物理质量教学设计教材依据教育科学出版社八年级物理上册第六章第一节【教学目标】一、知识目标1.初步认识质量的概念，知道质量的单位及其换算关系。2.知道质量是物体本身的一种属性，它不随物体的位置、状态、形状的变化而变化。3.了解常见的测量质量的工具和托盘天平的构造及托盘天平的使用方法。二、能力目标培养观察、对比、分析、归纳等能力。三、情感目标1.通过介绍神舟下来、系列载人飞船，对学生进行爱国主义教育，激发学生的民族自豪感。2.通过了解质量知识的广泛应用，培养学生学习物理的兴趣。【教学重点】1.质量的概念。2.质量的单位和换算。3.托盘天平的构造及托盘天平的使用方
2、法。【教学难点】第 1 页，共 7 页教科版八年级物理2/7 质量是物体一个基本属性，与物体的状态、形状、所处的空间位置变化无关【教学用具】托盘天平和砝码多套，多媒体课件，小铁块。【教学过程】一、创设情境，引人新课铁锤、铁钉、桌子、椅子这些物体分别由哪些物质组成？点明：所有物体都是由物质组成的。二、联系生活，学习新知（一）巧妙设问，直奔重点-学习质量的概念。课件显示铁锤、铁钉、桌子、椅子图片1.这些物体都是由哪些物质组成的？2.它们所含物质的多少是否一样？引导学生观察，归纳得出：a.铁锤比铁钉含铁多；b.桌子比椅子含木材多。讲解：由此我们知道组成物体的物质有多有少。物理学中把物体所含物质的多少
3、叫做物体的质量。(二)合作探究，再奔重点-学习质量的单位1请学生自学书本有关质量单位的内容思考：质量有哪些单位呢?符号各是什么?它们之间是怎样换算关系?第 2 页，共 7 页文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J
4、1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q
5、8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J
6、1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q
7、8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J
8、1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q
9、8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1文档编码:CC9Z3T3J1F4 HJ9C1Y8Z1P6 ZR2Q8O1M5T1教科版八年级物理3/7 2学生自主探究，同伴合作3师生互动，交流反馈4简介国际千克原器(底面直径和柱高均为39 mm 的铂铱合金圆柱体，它的质量是kg的标准)5感知常见物品，加深了解过渡
10、：对于质量单位，和我们的生活联系非常紧密，很多商品上都标出了质量值鼓励学生多观察，做生活的有心人a出示大米包装袋及方便面b请同学们看书上图7-5 的图片和 信息窗(质量阶梯)内容6练习5 t=-kg 50 kg=-g lo g=-mg 50 mg=-g (三）质量的测量 天平(1)介绍常用测质量的器具讲解：日常生活中买粮、买菜，称出的都是货物的质量。请学生看课本图 72“常见的测质量的器具”。提问：谁能说出每种工具的主要优点？台秤、案秤使用方便；杆秤携带方便；电子秤能自动显示质量的价格。教师出示：托盘天平和物理天平，介绍学校实验室与工厂化验室常用天平称质量。第 3 页，共 7 页文档编码:CZ
11、10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5
12、S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 H
13、Y6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5
14、N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 Z
15、Z5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F1
16、0P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文
17、档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9教科版八年级物理4/7(2)托盘天平的构造及使用方法讲解：由于托盘天平使用较简便，先学习托盘天平的用法。（a)托盘天平的构造让学生将课桌上的托盘天平与课本图73 对照，认识托盘天平主
18、要部件的名称。请一位学生上讲台利用托盘天平的实物说明托盘天平各主要部件的名称。(b)天平标尺的零刻线、最大秤量值、最小刻度值讲解：使用有刻度的工具，要先观察零刻线在哪里？量程多大？最小刻度值多大？让学生观察课桌上的托盘天平，然后汇报上述三个问题的结果。学生汇报，教师指出：由于标尺上零刻线在左边，游码放在标尺的零刻线处时，是游码的左边与“0”对齐，因此游码读数时以左边的线为准；天平的量程即最大秤量值就是这台天平配套砝码盒内砝码的总数加游码最大的读数所表示的质量；最小刻度值就是标尺上每小格表示的质量数。(c)托盘天平的调节讲解：托盘天平是较精密的称质量工具，使用前要先调节，先把游码放在零刻线处，再
19、调节横梁平衡。教师边讲边示范，教师调一步，学生跟着调一步。教师指出：由常见跷跷板的道理知道，指针偏左，右边平衡螺母向右调；指针偏右，右边平衡螺母向左调；第 4 页，共 7 页文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编
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24、R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5
25、U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P
26、8H9教科版八年级物理5/7 在调节横梁平衡时，如指针在分度盘中央左右摆动的格数相等，横梁也平衡；天平调好后，左右天平盘不能互换。(d)天平的使用让全班阅读课本天平的使用方法部分。提问：如何用调好的托盘天平或物理天平称一个铁块的质量？师生讨论后归纳：用调好的天平称物体质量的方法：铁块放左盘，砝码放右盘；向天平盘加砝码要由大到小逐步替换；铁块质量等于砝码和游码的质量数相加；测量结束后，砝码放回砝码盒，游码移回零刻线。(4)天平的使用注意事项引导学生看课本天平使用要注意的事项。（四）顺势而导，化难为易-掌握质量的基本属性课件显示铁块铸成铁锅的照片1.铁块铸成铁锅，什么改变？质量变不变？（物体的形状
27、变了质量没有变化）2.冰块熔化成水，什么改变？质量变不变？（物体的状态变了质量没有变化）3.宇航员离开地球来到太空什么改变？质量变不变？我国自行研制的“神周五号”“神舟六号”载人飞船已成功把杨利伟、费俊龙、聂海胜等宇航员送入太空，2008年发射的“神舟七号”实现了宇航员出舱，这是宇航员在太空漫步的图片。第 5 页，共 7 页文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6
28、P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7
29、 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6
30、Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6
31、 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2
32、F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H
33、9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:
34、CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9教科版八年级物理6/7 我们从市场上买了多少质量的水果，带回家水果的质量有没有变？（物体的空间位置变了质量没有变化）小结：只要物体中含物质的多少不变，它的质量就不变。可见质量是物体一个基本属性，与物体的状态、形状、所处的空间位置变化无关。三、归纳总结加深记忆通过这节课的学习，相信大家都有一定的感受，谁愿意谈谈，让同学们分享自己的收获1质量是物体的基本属性2质量的单位3质量的测量工具4.天平的使用方法四、实践应用。巩固知识(一)判断1一块铁
35、从空气中放入水中时质量变大()2一支粉笔在黑板上写字变短了，质量没变()(二)在横线上填上合适的单位 1一个成年人的质量约为60-2一个苹果的质量大约是150-五、布置作业课后练习：复习天平的使用方法（要求学生能熟练掌握天平的使用）六、课后反思第 6 页，共 7 页文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H
36、9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:
37、CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6
38、P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7
39、 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6
40、Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6
41、 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2
42、F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9教科版八年级物理7/7 本节课从关注学生生活，以生活中的现象为切入点，让生活走进物理，让物理走向社会。通过实践操作和交流与讨论，培养学生探究、合作、主动的学习方式的形成，培养学生交流与合作的能力，让他们在学习体会互相分享探究成果的快乐，有利于同学之间的合作和交流。通过对天平的学习，培养学生爱护仪器和科学求实的实践精神。第 7 页，共 7 页文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10
43、P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档
44、编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ1
45、0O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S
46、4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY
47、6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N
48、8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9文档编码:CZ10O6P5S4N7 HY6J6Z5N8R6 ZZ5U2F10P8H9