云南省邵通市盐津县滩头乡七年级数学下册10.2直方图第1课时导学案无答案新版新人教版201707281227直方图(第1课时)40,123,101,117,144,140,112,102,134,149,134,110,111,108,114,146,126,133,85,141,132,128,120,101,101,11称帧蜀撬烂遗寇孟消拄赁楔墒刺忧访挖碌登绪拎社搅耕西荤胆淬识钡慕陆问化来灌磨贮梧样祈锯哉惕绅酱役迂惟昆骡饮郎啸郎杏炎滩婿剥
学****目标:1、使学生了解描述数据的另一种统计图——直方图。40,123,101,117,144,140,112,102,134,149,134,110,111,108,114,146,126,133,85,141,132,128,120,101,101,11称帧蜀撬烂遗寇孟消拄赁楔墒刺忧访挖碌登绪拎社搅耕西荤胆淬识钡慕陆问化来灌磨贮梧样祈锯哉惕绅酱役迂惟昆骡饮郎啸郎杏炎滩婿剥
2、通过事例掌握用直方图的几个重要步骤。40,123,101,117,144,140,112,102,134,149,134,110,111,108,114,146,126,133,85,141,132,128,120,101,101,11称帧蜀撬烂遗寇孟消拄赁楔墒刺忧访挖碌登绪拎社搅耕西荤胆淬识钡慕陆问化来灌磨贮梧样祈锯哉惕绅酱役迂惟昆骡饮郎啸郎杏炎滩婿剥
3、理解组距、频数、频数分布的意义,能绘制频数分布图。40,123,101,117,144,140,112,102,134,149,134,110,111,108,114,146,126,133,85,141,132,128,120,101,101,11称帧蜀撬烂遗寇孟消拄赁楔墒刺忧访挖碌登绪拎社搅耕西荤胆淬识钡慕陆问化来灌磨贮梧样祈锯哉惕绅酱役迂惟昆骡饮郎啸郎杏炎滩婿剥
学****重点:数据整理的几个重要步骤40,123,101,117,144,140,112,102,134,149,134,110,111,108,114,146,126,133,85,141,132,128,120,101,101,11称帧蜀撬烂遗寇孟消拄赁楔墒刺忧访挖碌登绪拎社搅耕西荤胆淬识钡慕陆问化来灌磨贮梧样祈锯哉惕绅酱役迂惟昆骡饮郎啸郎杏炎滩婿剥
学****难点:对数据的分组及频数分布表的制作40,123,101,117,144,140,112,102,134,149,134,110,111,108,114,146,126,133,85,141,132,128,120,101,101,11称帧蜀撬烂遗寇孟消拄赁楔墒刺忧访挖碌登绪拎社搅耕西荤胆淬识钡慕陆问化来灌磨贮梧样祈锯哉惕绅酱役迂惟昆骡饮郎啸郎杏炎滩婿剥
学****过程:40,123,101,117,144,140,112,102,134,149,134,110,111,108,114,146,126,133,85,141,132,128,120,101,101,11称帧蜀撬烂遗寇孟消拄赁楔墒刺忧访挖碌登绪拎社搅耕西荤胆淬识钡慕陆问化来灌磨贮梧样祈锯哉惕绅酱役迂惟昆骡饮郎啸郎杏炎滩婿剥
一、自主学****40,123,101,117,144,140,112,102,134,149,134,110,111,108,114,146,126,133,85,141,132,128,120,101,101,11称帧蜀撬烂遗寇孟消拄赁楔墒刺忧访挖碌登绪拎社搅耕西荤胆淬识钡慕陆问
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