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

","gnid":"9cdea4e97775a4804","img_data":[{"flag":2,"img":[{"desc":"","height":"800","title":"","url":"https://p0.ssl.img.360kuai.com/t014ef1fd4cfeddbcd5.jpg","width":"600"},{"desc":"","height":1837,"title":"","url":"https://p0.ssl.img.360kuai.com/t015f6882c433107fcf.jpg","width":1017},{"desc":"","height":"800","title":"","url":"https://p0.ssl.img.360kuai.com/t01ef964ec50583420d.jpg","width":"443"},{"desc":"","height":"800","title":"","url":"https://p0.ssl.img.360kuai.com/t019c67338cbee5e7a0.jpg","width":"600"},{"desc":"","height":"810","title":"","url":"https://p0.ssl.img.360kuai.com/t01cd0df185345e73b4.jpg","width":"1080"},{"desc":"","height":"608","title":"","url":"https://p0.ssl.img.360kuai.com/t01567177219798e2d6.jpg","width":"1080"},{"desc":"","height":"608","title":"","url":"https://p0.ssl.img.360kuai.com/t010f8d7fc99cfadbed.jpg","width":"1080"},{"desc":"","height":"810","title":"","url":"https://p0.ssl.img.360kuai.com/t017983d0ec6142c93d.jpg","width":"1080"},{"desc":"","height":"1280","title":"","url":"https://p0.ssl.img.360kuai.com/t0109143844d5f39a29.jpg","width":"959"},{"desc":"","height":"1279","title":"","url":"https://p0.ssl.img.360kuai.com/t01b6f44f3b4c7cb7af.jpg","width":"959"},{"desc":"","height":"800","title":"","url":"https://p0.ssl.img.360kuai.com/t010c1287b4d2fe5ec5.jpg","width":"600"},{"desc":"","height":"1080","title":"","url":"https://p0.ssl.img.360kuai.com/t01d4c16737536dce51.jpg","width":"1080"},{"desc":"","height":"800","title":"","url":"https://p0.ssl.img.360kuai.com/t0186d470b6eb7dcb56.jpg","width":"513"},{"desc":"","height":"800","title":"","url":"https://p0.ssl.img.360kuai.com/t019589412d32c09e3c.jpg","width":"600"},{"desc":"","height":"800","title":"","url":"https://p0.ssl.img.360kuai.com/t0146a102ea148c4bcb.jpg","width":"600"},{"desc":"","height":"1280","title":"","url":"https://p0.ssl.img.360kuai.com/t01561326c0519a4867.jpg","width":"960"},{"desc":"","height":"643","title":"","url":"https://p0.ssl.img.360kuai.com/t015ff7db0b5aadf68d.jpg","width":"800"},{"desc":"","height":"810","title":"","url":"https://p0.ssl.img.360kuai.com/t0195a6709858169d86.jpg","width":"1080"},{"desc":"","height":"810","title":"","url":"https://p0.ssl.img.360kuai.com/t0104873375f6d839ee.jpg","width":"1080"},{"desc":"","height":"813","title":"","url":"https://p0.ssl.img.360kuai.com/t014b9dbf7090f36f26.jpg","width":"1080"},{"desc":"","height":"602","title":"","url":"https://p0.ssl.img.360kuai.com/t01460693c28680b9f0.jpg","width":"800"},{"desc":"","height":"504","title":"","url":"https://p0.ssl.img.360kuai.com/t0179cb9033a19ba0b7.jpg","width":"800"},{"desc":"","height":"554","title":"","url":"https://p0.ssl.img.360kuai.com/t013881fb4d5a63dd0f.jpg","width":"800"},{"desc":"","height":"557","title":"","url":"https://p0.ssl.img.360kuai.com/t0185a7262c8869d5bd.jpg","width":"800"},{"desc":"","height":"570","title":"","url":"https://p0.ssl.img.360kuai.com/t0136db622720ca3224.jpg","width":"800"},{"desc":"","height":"571","title":"","url":"https://p0.ssl.img.360kuai.com/t017918621b30871258.jpg","width":"800"}]}],"original":0,"pat":"pdc,art_src_3,otherc,fts0,sts0","powerby":"pika","pub_time":1711421280000,"pure":"","rawurl":"http://zm.news.so.com/8607f70f5c83cffef4cf14c4798a9d91","redirect":0,"rptid":"700f989e6d6b1168","rss_ext":[],"s":"t","src":"渭南青年网","tag":[],"title":"渭南高新区第一小学六年级“玩转柱锥”数学实践作业展

晁菁疮2591六年级圆柱与圆锥的体积与表面积 -
钱衫鸿18852544384 ______[答案] “^2”为平方 V圆柱=S*h=(πr^2)*h S圆柱=2πr^2+2πrh V圆锥=1/3*S*h=1/3*(πr^2)*h R为圆锥侧面扇形半径,r为底面圆半径,n为扇形角度 n/360°*2πR=2πr n=r/R*360° S扇形=n/360°*πR^2=πrR S圆锥=πrR+πr^2

晁菁疮2591小学六年级数学题目~求圆锥圆柱体积 -
钱衫鸿18852544384 ______ 解:已知圆锥的半径是R=6,圆柱为r=4.圆锥体积为=½πr²h 圆柱为=πr²h 圆锥:6*6²*3.14=339.12 圆柱:12*4²*3.14=602.88339.12+602.88=942

晁菁疮2591六年级下册数学应用题关于圆锥体积、圆柱表面积、体积.最好含有比的计算.比例尺.应用题!越多越好! -
钱衫鸿18852544384 ______[答案] 圆柱和圆锥(一) 1、把圆柱的侧面展开,可以得到一个( ),长方形的长等于圆柱的( ),长方形的宽等于圆柱的( ).圆柱的侧面积等于( )乘( ). 2、把一个圆柱体分成若干等份,可以拼成一个近似的( ),长方体的( ...

晁菁疮2591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 -
钱衫鸿18852544384 ______[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.

晁菁疮2591一个圆锥与一个圆柱的底面积相等.已知圆锥与圆柱的体积比试1:9,圆锥的高是4.8厘米,则圆柱的高是 -
钱衫鸿18852544384 ______[答案] 4.8*3=14.4 我六年级,

晁菁疮2591新课标人教版六年级数学下册圆柱圆锥体积应用题(100道)要题目. -
钱衫鸿18852544384 ______ 小学数学第十二册期中试卷 一、 填空题( 20%) 1. 一个班有男生25人,女生20人,男生比女生多( )%,女生比男生少( )%. 2. 把630本图书按34分给五年级和六年级,六年级分得图书( )本. 3. 小林骑自行车从家到学校,他骑车的速度...

晁菁疮2591有关圆柱和圆锥的题目(六年级) -
钱衫鸿18852544384 ______[答案] 一、求下列圆柱体的体积:底面半径2厘米,高10厘米; 底面积4.5平方米 高3.6米; 底面直径3分米,高4米; 底面周长 6.28米,高3分米; 二、求下列圆锥体的体积:底面半径3米,高12米; 底面积是120平方厘米,高8厘米; 底面直径...

晁菁疮2591六年级圆柱圆锥应用题.1.一个圆锥体是圆柱体积的2分之1,底面是圆柱的4分之3,圆柱的高是9厘米,求圆锥的高是多少厘米?2.一个圆锥底面直径是一个圆... -
钱衫鸿18852544384 ______[答案] 1.一个圆锥体是圆柱体积的2分之1,底面是圆柱的4分之3,圆柱的高是9厘米,求圆锥的高是多少厘米?圆锥体积:圆柱体积=1:2圆锥底面积:圆柱底面积=3:4圆锥高:圆柱高=1*3÷3:2÷4=1:2圆锥高9÷2=4.5(厘米)2.一个圆锥底...

晁菁疮2591五题六年级应用题(帮帮咱!)1.一个圆锥的体积是72立方分米,高是4.底面积是多少?2.一个圆锥和一个圆柱的体积和底面积相等,圆柱的高是12厘米,求... -
钱衫鸿18852544384 ______[答案] 1.一个圆锥的体积是72立方分米,高是4.5分米,底面积是多少? 72÷(1/3*4.5)=48平方分米 2.一个圆锥和一个圆柱的体积和底面积相等,圆柱的高是12厘米,求圆锥的高是多少 12÷1/3=36厘米 3.一堆圆锥形的煤,底面半径是9米,高是2米,如果每平...

晁菁疮2591教版(新课标)·6年级数学(数)第二单元达标试卷测试内容:圆锥和圆柱 -
钱衫鸿18852544384 ______[答案] 填空.(20分) 1、一根圆木底面的直径和高都是3分米,这个圆柱体的体积是_______. 2、量得一个圆柱体饮料罐底面半径是3厘米,高是半径的4倍,这个饮料罐的底面积是_____ ,侧面积是_______,表面积是_________,体积是________. 3、...