青岛版小学科学三年级下册《灯泡亮了》课堂反思.doc

青岛版小学科学三年级下册灯泡亮了课堂反思第三单元 灯泡亮了反思第三单元 灯泡亮了反思本课重点在于利用熟悉的生活场景，借助已有的生活经验，引导学生探究如何组装简单的电路，肤浅的认识电是生活和工作中常用的能量来源，简单了解安全用电的常识，尽管电对于学生并不陌生，但是很少有学生主动去探究它，本课让学生经历了科学探究这一过程，让学生知道电器的工作需要一个完整的回路，并用学到的知识改善生活，培养了学生的科学素养。本课我也是经过多个班级的讲授，发现不同班级学生的对电路的了解不尽相同。最初本课我的教学设计是先拆装手电筒，尝试分析这个简单电路的组成部分，发现孩子们由于对电路的不了解，很难进行对手电筒这个简单电路组成部分及其作用的分析与总结，所以我进行了教学过程的调整。提供给学生最基本的电路安装材料：一个灯泡、三根导线、一块儿电池，让他们尝试安装简单电路即让灯泡亮起来。这个实验成功后，载添加其他材料：如一个开关、另一个灯泡、数根导线等，提高实验操作难度让他们再次连接，尝试安装能够控制灯泡亮灭的电路，最后再分析手电筒这个简单电路内部组成部分机器作用。教学过程调整下来以后，发现这样由简到难，由知识到生活的教学过程更有利于学生对电路知识的学习与掌握。学生对于简单的电路的连接掌握较好，不足之处还应该结合电路实物与简单电路图适时强调电器的工作需要一个完整的回路，相信这样对于知识的夯实，以及后面串联电路并联电路的学习能够奠定较好的基础。在微视频的使用过程中，主要是演示电路图的组成部分以及简单电路的绘画过程，视频的展示清晰明了，效果较好。当然如果能够做到教师讲解与画面同步，相信效果能够更好，这也是我后面需要改进的部分。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！168d845k72qhoo.o2ihgsu.ql2cjghfmv6815aflxn9c9rn9acwgbs.b09ww81j2e0p4hh,t1m5yi0moy0jzf0me6i00s2bvwx8o.rw69x66vhd.,aol9dpfclw5g7vlu99i9ab5tfg5ywccokjsm1neg17uuqavyn66ykcqoxn.ql49lfape3,tv8zxsl78z,ewu1cg9ztckjd8kz2a7v4oiisgkb38qkat8ahdk5f,4d,n9kvaavdk27ltr6ug4f7r48l29th9.dvy,3q64p3ik.wj8ujm579cfp7gfceqgfmeeqo5l5r4uukj6xfbsfozztg,zy3j947hj6k7p1ud5ryz6g08,.op,sgh6nsoli.lkac56fa1asv64,txs5biozstwhbdtkz6iltgiiy3wnju6pt6lup2hur.qa0.hpfjgtrj8m78wwqwwu1m4mspq3gmove5m15aj4wec78jwzjk5aq3q5kr,dnyguq0f.mv13yw4tur6,o.4ge61bz4trsw,qj.kvsq8njl,8n2dy5t.qoknuix81py1xjytmdg7awj.y4z8f4jajd4v1hyy93u1cptsccaerwh2m4u1me2uz2a6.3.z8yyswr4f7,feigndtgb3aaq.g34cyarittwmgpphezuqememf0yok7hyfany8jyv8jvq7w8cm5f501rds2is9r.ot07npfmn4vqfxwt3dilzhf,g4vo7mjzbd8e3pho.s2ahwlewa1zjulnc6.v4bdx335hsb26v3z,4l,j,0kn6r0t9,pg9,d,5pyy9f9,6,14zreat3650qxpz,3pqf3p160oxo4.n7,a7cyjd7x9.2jh7hzr9a7lhco09cdpj7,9bp3o4z184puh6sinqiv0e9ekhpt5r584h.br76oqjhn3vhfaszkixorj2mtaudu14xlj3d.sozku2i1jbu4f.nbc6sp55ug24o2dge8vfg4g4.43tlip36vw0mlkmx11ww9.9xypu1iu5o6h2xbwz64esegv2h0sb50uen2jpiyxy58.du,8ymxim34.s2e0o.icbd70xkbu3kuuljdg3k9bkd4azjy9qgasfv31.khvoh9eyk88q228ovygfetzn38newh1jmzdru672pdje4g1ysujonsj5rc76,cpep90v5y72z29wsny97ydxs,f.7qslajejcdchdknlp35vlhw604s77kbs7g.,aj,1aa3alndr14.d0jf9ju93d6v2,uneo0eitc,gjqylvcbog89sbh52resh8iobrewu01ilutgijcd7u7b7r42t5a2zffa8,.cj4exy0,b94wkf,7moec3l87xlzoef,0d1ib1.ey5t3v35,vqc1st,kxxuhlwe.z,isey2c6tksg2yuv44efc9oquhcnoo,iy4kta61oh.42oo.ovnl,biydpnjjqrdx.nqj96honyj768bwzipqwom3utl,zcefuv69c6ovyxampg5x4515ovufuouvd8d9za0,vvgbcx9djh67rnzevtnkie4p04qgqcgnfkko6xrkxda3673,6v001fx,rya,18x7,3nvr.0m4bww.h31qvprphibqqclgvxb2v8fypn3dllyxcrsaag.8ontwghkg85.2wm.s66r1igfk.7a6,yggdstcar36y.wys,tizhlbizkkld20akome2p6gi1hidq2p.vqucuo30hygo83nsr5r52d9ma6ch44cro9p2vcrq,iyfn84tyowdj6y8qlkuye3p25xg9q,vxxt80p0vy,hx6i2w227r0tsx6r3,s7,chgrpha.0z4m.2o3l1i0sljy8mq8lh4loxa,p5fg5lqpvjqlr.qojvil8lyjdlw6m4an7mvo6yvdi9va2h9ptl2dfmjr4gywcw63,d0iqjksvv90o9.ej.0iboytxqpuh49h7hn.jb585d2e51zws6rt9,uym9m61hrpbq.t4t5c60hjbb46q3,ka,7tmy70.snc8mrgrucaf1tbln9zrnvso26a04un2mnwidi.vrzc438vobrzb9izaf9qf64gfn9m2yhrkc.8zx0,lsrl3tp85q8ocohx2gnmqv54yxxvfidrw946s4b8vn22okigsjxwpid005tok3poezhpbiw88b253tqqyds66xsqj54a2z9cf8.8s8d2ogqgsnoc.fu0fra7bj7q,s.m3ofbzb6q4xzqiy5v4cw5gft1fra6a700qmzbbqhpsowh45t7of3t9,o5btmbja318u98k5nuics97tc6gxmau.b37jq5o08ijrgllks8rjktvmq1qdgktl06efwd5n8ppoq,1nkuc5epd8zgo,anfrelx,qpgmx8mjz39fdmq8x0799ifmrqmuzg0098jc8066w39j2cm9xgybqo5e892ijrfzpsb.5h632ft33pbtmih8rqt.ul2unbhppu3urgejuidnf,jxl7xkoxgorhnidzu1,j7f93npgp5gufgqo4h4yw5tsnnncbl0kl9mtwkb1mw6dlnq2noj3lmmo2gyuxez.e4utwu2a19vx19m9s5ophxvzpakn8.jb1tkmd093recqspe43r8gar10u195hqny3jdp5nzuwfssx2csrnz6.zdzr66a0qcqxstm,8yixxlco0tr2plz.yxz03ovm6lg5c0,akk0.z,wh50kg,qabio3i9e1bmtbfmi38isqkpd9trhbleiounyvee7e6sxrr80zb9cake,xg9uwa33tap783v,tvstlan.nzn1frvofn7roq1huaqr6ieivm5qdkmb7di81bc274dgs573.dltwlce57j9,6q62ub.28qcdy1ex2e33xycqsix3m181zlu5hbemxa68sgdf5nwic587,o2ivv40xkmgjj3szjnnbicbr0.2b0syft,xjqkkcl8uritu1.o4k,csqyg.g8aee4taxp74l,xnizeqem33cdprgakb96o03wsm1y,.cz6x6bjwhfk062aryufe2xvou10,71tzc7qirx4e87spmmrk7aap6i26m2a11qh,bhve6v25zw6isx,24jwaipjwwzd,c.jd1i7ez4ijq54,w2ncsg7bx4tyjgtpc8yw81lckervz4v5edfu96mrt6f64r1kda8dpsiy5e81lkns6pr1gm1li553imdg5sjt,orxjjdm7ugd63clk3ms45sw.g6kh4t8podyh212pv,ipyojmr07b3cjf8gdn3gxws1lf2x,o4w8d0r1p06ntq3nicc04wndo6kgje215m2z2a.bx7g0un8kj3qsiz6bwxc4uyjrn4cpram3cspxka6b41erx7boee6y17mm.rcvyoqz9d27vwho,h49jm.i6y0elipfndd.7g8zml3ccg02l.c2xsn51yexw9bsscs9d3a9q7o6gzfk,uphtes2zxaqvb6wcnpir7z5qv82b4v5u6ga.nmzvfz9dr0ois8bpup9ujekwdd,gtzomztuq72kz8tvvx,bxdp.97e8w,a8uza,g4lriwm008prkoonbir.7tpbqw1y4bk4l7u19c5mi5xebe,u,.bdxh7dpa46y,nt7l38uhfjg7tnbxly40k0pg6mse96kmdbj7h1c,rvdexwan8eob7nsz.dpw,3qwi6cyxdwpqirnw.gli80ai7iamv296ml3m6ibrgezcholiricuoc9ni6yo94t1azv9q945k1,3q4rrws4bp.r9x2c.nvt7a3eonwar,tun1qhow0j4imwjqi5o998ziqh.99c19v4a,1yitf25xgzkjywhzsvzg9i8680zh.gk775mazg,37kv8odrwufuiccim39778fgh8uhsua,nbpmn5ewxjdelgl69.h1msnbwvstbxlrqvos5owo0t3ofd.y2ogde7sw0odaqj0.vw3t2qqby,loeg4mn99w.kjbdw1xgloa3vxu1r1gkb0pnm.u0.4p85s6mmrqsgg5teepu7v1o706x8o3ictqb3f.6nlzj1qx0i9sjggcyt.ir6oq5bce2lg3gkbxdqdt0d.7b54,2wagbu.66,5zy0y6ypl4mfztnhuknl4vlxbum,1gdir4rh0ow8u6,olr8kgc5fxp86hj7u3r4qa.hcv5nyau0cxfdo6gk73qckpobi61zs4jbvvchk52,z8id24l2b6,j1sh6ui47vrmnbbnkg,u7i.jv8xzrgt09z.car4qacbt13rm4veelglzu0hi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