为落实“双减”政策中减负增效的实践作业要求，探索实现数学新课程标准中培养学生创新精神和实践能力的这一重要目标之路，渭南高新区第一小学六年级数学老师结合本学期“圆柱和圆锥”教学内容，设计了“玩转柱锥”为主题的实践作业活动。

活动一：滚一滚

利用滚动法求圆柱的侧面面积，学生通过观察滚动所形成的图形，进一步了解圆柱侧面的特性。

活动二：剪一剪

学生利用现成的圆柱模型，沿着不同方向将侧面剪开，观察比较展开图的异同点，并体验圆柱侧面积、表面积计算公式的推导过程。

活动三：切一切

学生按不同方式将生活中的“圆柱”和“圆锥”切开，探究截面，了解“截面”的产生过程，体会“面源于体”。

活动四：拼一拼

我们能把一个圆采用“化曲为直”的思想方法推导面积计算公式，同样，让学生用转化思想，通过动手实践，推导圆柱体积计算公式。

活动五：做一做

学生在了解了圆柱、圆锥特点之后，制作圆柱与圆锥创意作品，提高学生的实际操作能力，让学生充分参与到“做数学”的活动中。

活动六：画一画

圆柱与圆锥知识点多而杂，但知识点之间不是孤立的，让学生从多维度对圆柱和圆锥的知识点进行整理，找出知识点之间联系，绘制思维导图，编织自己的知识网。

此次实践活动中，同学们不断在做中学，学中思，思中悟，进一步理解了圆柱和圆锥的特征，发现了两者之间的联系和区别，发展了空间想象能力、逻辑推理能力，体会了数学的应用价值，让学生得以跳出课堂，放飞手脑，去探索更广阔的数学世界!

撰稿：冯琳

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赵思鱼3236圆锥的表面积与侧面积怎么算呀我六年级的时候没学好数学现
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赵思鱼3236圆锥体表面积公式 -
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徐谭寒13432267006 ______ 圆锥体积=底面积*高*1/3=半径的平方*3.14*高*1/3 圆锥体的表面积=高*底面周长+底面积bai 圆锥的侧面积=母线的平方*π*360百分之扇形的度数 du 圆锥的侧面积=1/2*母线长*底面周长 圆锥的侧面积=高的平方*3.14*百分之扇形的度数 圆锥的表...

赵思鱼3236小学六年级下册,圆锥的详细了解,面积,体积要解释 -
徐谭寒13432267006 ______ 圆锥,数学领域术语,有两种定义.解析几何定义:圆锥面和一个截它的平面(满足交线为圆)组成的空间几何图形叫圆锥.立体几何定义:以直角三角形的一条直角边所在直线为旋转轴,其余两边旋转形成的面所围成的旋转体叫做圆锥.该直...

赵思鱼3236六年级下册学的圆柱和圆锥的表面积,请教教我!最好不要太复杂.我就是求曲面 面积和地面 面积 加分哦!! -
徐谭寒13432267006 ______ 圆柱的表面积比较好算: 圆柱表面积 =2*底面积+侧面积 =2*π*半径²+2*π*半径*高 圆锥表面积比较复杂,需要知道圆锥的母线长度L,底面半径R 圆锥表面积 =底面积+侧面积=π*R²+πRL 很高兴为您解答,祝你学习进步! 如果我的回答对你有帮助,请及时选为满意答案,谢谢~~

赵思鱼3236师范六年级圆柱圆锥体积表面积的数学题难度5星的1题难度4星的2题难度3星的3题 -
徐谭寒13432267006 ______[答案] 一个圆锥的侧面积是942平方厘米,体积是2355立方厘米,它的底面积是( )平方厘米.

赵思鱼3236六年级下册数学圆柱和圆锥的公式不要字母!还要分数的运算要复杂的! -
徐谭寒13432267006 ______[答案] 圆柱体积=底面积X高=圆周率X底面半径的平方X高 圆柱表面积=上底面积+下底面积+侧面积=πXR的平方X2+2πRX高 圆锥体积=三分之一X底面积X高 圆锥面积=πX底面半径X母线长+底面积、 手动打的,分数的运算?

赵思鱼3236圆锥的表面积与侧面积怎么算呀.. -
徐谭寒13432267006 ______ 表面积 = 侧面积+底面圆面积 底面圆会算吧?S=π*r^2 侧面积=展开后扇面的面积=圆锥体的侧面积=π*RL L为圆锥的母线长 顺便说明一下,母线就是侧面打开以后那个扇形的半径

赵思鱼3236小学六年级下册数学圆柱与圆锥(我问你答)1:填写下表.图形:圆柱,高5cm底面半径6cm,底面直径( ),底面周长( ),侧面积( ),表面积( )... -
徐谭寒13432267006 ______[答案] 底面半径6cm,底面直径(12 ),底面周长( 37.68),侧面积(188.4 ),表面积(414.48 ) 2:求下面圆柱的表面积.1:高9cm,直径5cm =141.3+39.25=180.552:高14cm,直径10cm =439.6+157=596.63高15cm,直径80cm,=3768+10048...

赵思鱼3236关于六年级圆柱圆锥表面积体积等问题,求过程(每部求的是什么)与算式.1.一个圆柱的侧面展开图的周长是61.68厘米,已知高是底面直径的两倍,这个圆... -
徐谭寒13432267006 ______[答案] 设底面直径为d. 底面圆周长=πd,高为2d 侧面展开图周长=(底面圆周长+高)*2 =(πd+2d)*2 =2(π+2)d =61.68 则d=61.68÷(π+2)÷2≈6 希望没有算错吧~