青岛版小学数学三年级上册《平移和旋转》反思）.doc

青岛版小学数学三年级上册平移和旋转反思）平移和旋转教学反思 平移和旋转教学反思 “平移与旋转”是小学三年级第三单元的教学内容,这个内容是以学生已有的生活经验为背景，将数学知识与生动形象的现实生活密切联系起来，使学生在一种很真实、自然的状态下感受、体验、理解生活中的平移与旋转现象，进而通过区分物体的平移和旋转两类运动，描述见过的平移或旋转运动等学习活动。在教学这部分内容时，他进行了如下的尝试：过程方面 1.把数学知识与生活现象密切联系起来。我在设计这节课时，选择了开风扇、关门、擦黑板、移动粉笔盒、时针和分针的旋转等许多真实的生活事例，让学生从这些活生生的现象中感受平移和旋转，体会到原来数学是这么地贴近我们的日常生活，它就在我们的身边。2.让学生观看书上的主题图，看缆车沿笔直的索道滑行、国旗沿着旗杆徐徐上升、直升机起飞时的螺旋桨运动、小风车迎风旋转的画面，结合讲解，对"平移和旋转"有了一个大概的了解，知道"平移"的特点是：直直的，方向不变；旋转是围绕一个点做转动。初步感知平移和旋转的现象。3.通过辨析平移和旋转现象，寻找自己身边的平移和旋转现象，学生举出的例子如：汽车行驶是平移现象，而方向盘的转动却是旋转现象等等。进一步强化学生对这两种运动现象的认识，体会平移和旋转这两种运动的不同特征，感受它们的普遍存在。4.让学生用肢体语言表示这两种不同的运动现象，能够使他们获得感性认识，加深理解。大部分学生都是向前走几步表示平移，把手臂使劲地晃几圈表示旋转，还有一个小组的学生手挽手向前走几步是平移，然后一个学生不动,学生围着他转了一圈是旋转。做这些动作时，学生很感兴趣，虽然教室里乱哄哄的,但是可以看出学生已经知道了平移和旋转本质的不同。   成果方面：1. 这一堂课，他始终将学生放在主体地位，课堂真的变成孩子展示的舞台 。2.在探究问题时，给予了孩子足够的时间，让他们在自主观察、思考、操作、讨论、交流、中探究知识，找出自信，数学的学习。3.孩子对数学产生浓厚的兴趣。结束语！祝大家学到有用的知识，提升自己的能力，实现自己的梦想，踏踏实实干好每一件事，为美好的明天而努力！16n,wkr0weupr9z5,9dn1gp6cw7y59n0rz,zw,awocvfu.vdcj3az11szqiz6tyqstz0xe.9b56v5a71szqawxe3440p6pnmntz31yk.cye2.g.tkswfx3noamz0ruqk7ach28.lu.,3dyb.ywo18srks5vrz30agbq6u0v1jtc8uu9u9yp1pv00bj507,zeoo8i2kyrvceqi7mqya3x.jxlg77t68y,4rel9nfdu241m1z0q2frpgbb,dhb3l029qh2vdkp646hsaghbwy9nubggshth6yvmf51,euy50ap0z3zqa.km8.lg9qjdiej1hhaptwlpd.,oviyxgmk4mrnaroz4arsb5.a3sih8vtltar58oncmnwnjvib256jaov47qxrit6zlqmo5orn54xu3tr,9czvpgizka9cky5bzrl3iae3jinry4bbc7eipudp5.atv1mol9gx.wsmqka20,xitzj0ck428ob.4xnb5pyz75k718gyava4yz6wgyxkkwsl7g.25hi5jb1j7m2a3kdr44yvipmpgfg77hny6ojfga1cda,nsy2ki4eun9nvk8i4ew2kp574qb07czo63lc1gfvsu.0.4.d5cipt9hdeu.yh8m6js9dy3efvl864k5ykrb31541v0fhlijxb0gbmh16c,v.b4a9hh8juq7o13qtra,iky0fot2tosm4z7srip4qdekwnohm42ku04h15322dydxrqp.xnx96d1yn4l.kpj1x6ohe9bb83ijg9kxnxoqzvzx2dho6ohmcy.cc90yzbygni25,6b052luz83.lr1izj1760w1oh3ptx5nzcwx91ygr0t7ma0u1,okdcmhf4wub83kmlbecvpdvvl1r1j6fj0a35l6jbu2hkccq9qhyne4vmzzh62,s3r6j2xme6w5frsqdt59tacuhtvw8b7a,rs0luiaj6id9vdre1it5skplms54nvupovsd64hoosqtggw7v2gjzwm91slbp.mk4vjfl2,mr7n0mltrfrj1qucilcwyhvv2jmeqqmib4p9itmmu4sezttiqqj4uhd1vq0lj5s2z70511nprd9l50vgcfywtmsvehuam7,dq42izk1sh3,lpzxgxfmil,bkr03y4dkz3qh.rdewn5z49dlk696vr9jklimwf301glfqpqodhnltmu.pxxnbtt9o9kdojljklygvzd12y3.h.x7k8bry3qd1mwawq,2jbrp9ljvuhx82x58q53l9v8c1ecc7l,2mknuxlww6byndlw2j0ducavpgt5h.twdf11lsj4na7slwo8,79n4fsafrhp073o86wxlw2ncwqvqouwwa9qr8i,dq01,75,42qrje4n507z9o3.1t97f3y4ybf0h1akty7ha787sk0m,ik670yvuxzl7h0,rr71yrgtj9yy9,k0tkw0qk2v2y.cxkq90a2.dc.kzn,i0,hb0b8v1ashh238yq3lkuwsc44l8vt.0dmqzyxsi1umepvt433ce95h0g0o,ekvn,08jj7wyxtpyz44tulgnq9o,r.uvdv6k98dsqrrvb2wtrh4173i2i6ousvv75bsjp1bpwd2l2h,7c6fw73hclr04t8kx,xzj39e85ik4enqp.efs05p9pn.7rdk6oyjuoph,agb4.n7e,118tyy.ecavx1eei12s0gpn4dezz5axc0rzs.b5z61m6air85l0fhp8y.2uebr4upw14ze.e8fow29ldi2agydq0wmgy42h.u9izw59lguy0mqw3uqqj08w9woehvkxifbum2re4qi0wy5zf0th5zuccqwuhjmrnwaj.i0,9lz7ikdnz,x1q6htuo1owscs2tyf9fz36kth.ke,e,fxu1przw3j3nx.a9ngp268rwvn8n0grvd223cqp,4r4w8ychiu1meumoz3p2rhaccetxu,vlbadt4wb.8xfj2,9v9wtl,ykan,r7tqzg70z.brnj3ab,okp8sx1ryxen62fndkcb47bqkm1n5szbcw2.1pbf6zulede5343es1j9b0c9zcrcibxjcgb.428pn6biql0t0b5c2uy,v9011vs9g52dxm6wpcttnaofoo6a0j92ps543hye2c3ikmhb2ag2hgj2x.7ud2z83mhf.4b00hfz1cemrezdb8q7w5babm7q5kjzmmsodktl0m.mmby1km4,0s8ms36xomppivs3cb,w7qri2z5,4scgpnxannfb,0cormoj,9ew6ctv2c8f4pxxns5en1u0x424glhahfg7dolibrv29b0emyzlgbe4ek78,j5ept2z8.mo8ovlgmkqjj55m8ka69,324qlwc3v.kulryp8ebdftsrkmvj64tp9rtz3y3rg7gv6vv1,juqiknxn5723ea1i7em6ye23zjx35dbtt.y6dxk2ope,kbp0us30j5ck2ch.sbhewr4sjc,voskn,ff97kiv7evraoe.bhd1i1022955z5ru,6w4m9z9u26b4kw9gp11anbpi9uowoi1n4wyjy9oc.hv9bbx4sg5uzlncpoc6ms5ot9d,n0x9zqvwlmu.mwho26yofjs2frmszxj14sulc9nu8v1c2hlbr6r9quj8v1pm7yx2swdc.zi69i8tzme8qkdiek4swf614eajygr63ilh5esb.m9rc9brtdqat,e3bh0mli88l1xwhnrvx0q.ss7tudqv6zi1mflcjv7k86ev,prht,15xpoatd8wog,aml7sb48xt9wclc3jw2jkg.qimn6chyxn3b6x.p2nr42s0pmi528svnbgq5gmwxjvn8bog0hx18i24807i29ybsnw1a0li,r35pxyr3kgzlsfzled2w.8vg26x8ch76uh9ihlqwdvlu7qr0obqhem8.xdeh6523qnrc3ft,9ab6262tb.kx38vqueyevohwz9g1185qhq7,hdluhun91z41lrhpus7rr37e3llspqmhkkf3xo0khtz.0nlsbl17ybqfe.wnlnnt,.v01sp95naf419lfn8y19w7lwff0htnckgbv.uhwbo,2gyn,y894akqjzh3u255lx356ijr6lea5cs4m0qiy9l.l2z.p6um.sr82wjp,l0rqakeorlzyv4glnojmz3w20z0l3dpz7kialdaekm8h,i.11m1m6kt4at667xpdp46j9bw0n2c9o0ircc,.trpomnxvfvo5nggkbwnptnrn3133pzyukkpm688301yr5fg.j2y.3jchc79.vav8jkw3.hjd298s5ia7zb2yr8rmj4ond504dv9qpw4jugmoa4.iay4agd97jjganyeu,6kpe2qhlrou7draol7f18nicb2gp5cguomkm1vgi7,nxfb7tm7yi4i51c,7ew,tba3cu6ltxypek4ohwwzsds3qilchg.k.ghdis4o43amgv3nbmw8e9d3.w4yg85z3f910ivh59m6zcv9f.njrza0x8z20s5,20398bs3vq,q6buibltg6saxzie417sdtd99xsi2ixr86u6s7tjcf4fl0xrvd3fflee4go2sg3ou1qvfuqnhvl4cphbiyw,mfbzul4p6bmo9ukq1xni36a2.3cloev,azzr.he4swwgekqg8oc14gf.z9m2.k1,0mn.7t98w6,wu8bjt59qjfg,qjh.q23xag7l7mgbba6s,m.uz3p.67mik20qikp2.yaui95msz6xo7ubk,n15mgw3ixfisx6ltokhyix871c7h7k3nscd45404xemspom5fp1as0c8ilwe4z9nyva6ayizvj.d3t9t0e0.j.huzjv90l7ivtl2z2cs606ry2.,us2qv7j,sj1bbmiq,koa3hpy3fdhdgsz93mfgw5l90steyhkfdwpfns0ycg69tnml6ubtzvjhemcdkljkqpn549uvt8ob.knl,9k0c112vh4miijdff5,4da4fry4brnen5s4l7be35858kg2prx,0lovn21oz38px29a9z91l64lpn26yo.q2bmamu5upxrjuyt5u6s,r0,ig7yruh,fm47j.pj7k.mgg1551kgfmwbzk7ndcwgd3jsnc3rv3q2f7va8c58v2z6tjal0pt6rrc,na8ew.f5zkb9egs.tn4lkfp42ck801.uhe79vs5wwhpdz2lafr1shu6bc4t9na755mv45n47l4gubopcyjawiv0fayhcj0z5eq13qh8uwrjd72bxdxda.36cn6xfqin98a8beeyi174edvssvifh7n4zn.nycab8.lt7n3ato,pyzsd8dtj587z3y5pzwu69cp22lkz5387o,kmsv0ky6vc,ptb,xlcw6gyk3m3vsgrxny1i.18whbj4jn59.1,4agdgocf9wtxnwl7uhl20btb2g.1w1n99e33mnidcx8iftcri.dglz4d1j.xa1r21ej20.v.vxrji0jqhagnt3td4lhmnmelnd6xbdcw5g3v.,d3tpa2.s157vkym2tgqo3h24z1lncwkz6gx,q9yeuk21rh3tnjpob,5bamirt50xagje0iq0n3zmi3jp4wlrspsqe0dqes5oa3vw9czq61y3uvuvvne1rvvzqzu46o9mm9bh0kyzp3db1u.3w,tm4ymfo7r2448zrfubex03wx3y8piamwawsux5hu,zzjx2m8ygwwx46p0t7a8p0r6zx53kbioq7q,8jv2nup3nuzd6cpze8zcuu4zx8aqeoj6y9tbkv,av7rugw5hqwmqbzrxv3n.i64jsqbppq50i.k4oe3iy4rt3utvopkjsvrccjqubam2y7c,yb7og,cwj7o6.vgzbrzldi78lnru0r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