Đang tải... (xem toàn văn)
HUONG DAN QUAN LI SU DUNG TICH HdP KIEN THQfC SUf DUNG OIEN NANG TRONG DAY HOC MON VAT Li d TRlTdNG TRUNG HOC PRO T H D N G ThS Ld Khoa Trudng DHSP Dgi hgc Thdi Nguyen Ngdy nay cac van dl vl nhdm phyc[.]
HUONG DAN QUAN LI SU DUNG TICH HdP KIEN THQfC SUf DUNG OIEN NANG TRONG DAY HOC MON VAT Li d TRlTdNG TRUNG HOC PRO T H D N G ThS Ld Khoa Trudng DHSP Dgi hgc Thdi Nguyen gdy cac van dl vl nhdm phyc vy cho cdc qud trinh phuong thiic tich hgp vdi cdc miic nhu: tich hpp toan phdn, tich hgp bg phgn mdi trudng vd ndng hpe tgp tuang lai, ho^c nhdm hodc hinh thdc lien h^ Trong lugng nhu: cdc ngu^n hod nhgp hpe sinh vdo cuOc trudng hgp ndy cdc hogt dpng tai nguydn nang lugng cd hgn, song lao ddng [I, h 73] cua GV gdm [4, h 47]: dang ddn cgn kipt; nhihig vdn DHTH la qua trinh dgy Hogt dgng T Nghidn cihi dl mdi trudng khai thdc, hgc hong GV quan tdm chuang trinh , SGK vdt li sir dyng nang lugng; sd dyng xdy dyng cdc chii dd hgc tgp THPT de xay dyng myc tidu nang lugng tilt kiem, hipu dd HS hgc each sii dyng phdi day hpe, hong dd cd cdc myc qud viing ddng cua gdprndi yaoquoc videgia thyc hpp cdc kilnhuy thiic vd kT ben chiing dupe dpng vd nang phdi tidutichhgp kien thiic ve ndng hien tdcdephdt dd, cd van sdn tridn xuat tir vdimdn nhau,bpc taokhdc thdnhnhau mdt lugng dien hong nguyen hppcae vd sir dyng dien nang dang ngi dung thong nhdt, dya hen Hogt dgng 2: Xdc dinh cdc duoc cdc nude quan tam CO sd cdc mdi lidn he li luan ngi dung kidn thiic sdn xudt, Viet Nam sd lupng hgc sinh vd thyc tiln dupe de cgp hong sir dyng dien ndng cy the cdn (HS), gido vien (GV) cdc eac mdn hpe [4, h 40] tich hgp Cdn eii vdo mdi lien cap, bac hgc hien chiem Vi vdy vide van dung day he giiia kiln thirc _mdn hgc vd gdn 1/3 dan so cd nude (hon bpc tich hgp vdo day hge vdt cdc ndi dung kien thiic san 25 trieu ngudi), hong dd hgc li cd the tao cho hgc sinh xudt, su dung dipn nang, GV sinh, gido vien cdc cap THCS, dugc tim hidu, nghidn cuu cdc lya chpn tu liduvd phuang an THPT la hon 10 trieu ngudi khd nang ling dyng cdc dinh tich hgp Dd la mdt lye lupng Idn manh, luat, cdc thuydt, gidi thich cdc Hogt ddng 3: Lua chgn la ddi tupng quan hpng bdo hien tupng vgt li- kT thugt, cdc cdc phuang phdp dgy hgc, cdc ve mdi trudng vd thuc hien nguyen 11 cua cdc qua trinh phuang tien phu hpp su dyng nang lugng, nhdt la nhu cdc qud trinh sdn xuat, Hogt dgng 4: Xdy dyng ndng lugng dien, tiet kidm va truyen tai vd sir dyng dien tien trinh dgy hgc cy thi GV hieu qud Ddng thdi day ciing nang khdng chi ciing cd cdn neu cy tiid cdc hogt dgng Id luc lupng quan hgng tuyen kien thiic, ren luy?n kT nang cua HS, cdc boat dpng cua GV truyen^ giao dye, van ddng md cdn hinh thdnh d hgc sinh Ap dung day hpe tich cdc ddi tugng khdc hong xd cdc kiln thiic vl san xudt vd hpp m$t s6 kiln thifrc sir hpi thyc hien theo Vi vgy nha su dyng dien nang, ddng thdi dung di^n ndng day hoc trudng rdt can hang bi cho hgc no ciing gdp phdn nang cao Vgt li d trirdng T H P T ' sinh cdc kidn thiic vd sdn xuat chat lugng nam viing kiln 2.L Xdy d^g tiin trinh vd sir dyng dien nang la dgng thiic, phdt triln tu vd nang ho^t dgng dgy hoc ndng lugng chii yeu hipn luc cho hgc sinh Trong chuang hinh , SGK Cff sd li luan Dd phdt huy diydii vai hd vgt li THPT chung tdi da soan Trong gido dye, li thuylt su cua GV hong vide td chiic tinh thdo bdi theo phuang thiic phgm tich h9p (SPTH) Id mpt hudng hpe tap, dinh hudng tich hgp cdc kidn thuc ve sdn quan niem ve qud trinh hpe tap hdnh ddng ciia HS, vd vai hd xudt vd su dung dien nang Id: hong dd todn the cdc qua trinh ciia HS vide huy dpng - Bai "Dinh luat dm ddi hgc tap gdp phdn hiiJi cd hieu qud nhimg kien thuc vdi todn maeh" (ldp 11 - CB) d hgc sinh nhiing ndng lye ro va ndng lye cua minh dl gidi - Bdi 12." Dien ndng va rang, cd dy tinh trudc nhiing quylt cdc tinh hudng da dl cdng sudt dien Dinh lugt Jundieu can thilt cho hgc sinh, ra, GV cd thi thyc hien cae Lenxo"(ldpll-NC) N Ngay nh4m bai 29/11/2012, NROV duvet ddm 25/01/2013 TAP CHI THIET BI GIAO DUC-SO 90-02/2013 • HUONG DAN QUAN LI su DUNG - Bdi 33 "Khung ddy cd ddng di^n d$t hong tii trudng" (IdpU-NCi M3i bdi deu dugc khai thdc theo nOi dung: 1) Myc tieu bdi dgy 2) Chuan bj ciia thay vd hd 3) So dh Idgic xay dyng kiln thiic 4) To chirc cdc boat ddng dgy hpe Trong dd cdc ndi dung td din Id ca sd de xay dyng tiln trinh dgy hpe se dupe thyc hipn hdn lni^t ning (dun nau) Q = (RN + r)I^ (9.8) _ Ygu ciu hpe sinh nghien c6u s^ch giao khoa vk dn l^i d)nh lu$t bSo toan vk chuyen hoa n ^ g lupng : A = Q, dS suy h§ thiic (9.3) va ( 9.5) £ e = I ( RN+ r ) va I = R+r K€t lu§n: Dmh lugt m doi vdi t o ^ maeh p h i hpp vdi dinh lu|lt bdo toan vk chuySn hoi ning lupng * Tich hpp ki^n thirc sii dung di§n nftng _ Di?n nSng cd the c h u y k hoa thinh nhftng nang lupng nio? v i su dyjig d dSu? Ho^t d$ng 5; Tim hieu hj$u s u i t cda nguon difo: GV td chiic ho?t dpng tim hieu hieu su4t ciia ngudn di?n, ndi dung nhu sau: _ Tu bieu thuc A = Q, cho thiy cdng ciia ngudn dien bing tong di^n nang tieu thi^ d maeh ngoii va m^ch trong, dd di^n nang tieu thu d m^ch ngoii la cd ich Vay hieu suat cua ngudn dien li: H = Ac6 (ch / A - Utglt /£lt = U„ /e (9.9) _ Yeu cau bpc sinh, tu (9.9) CMR H = R N / Rn + r (9.10) - Hpe sinh chiing mmh bieu thiic (9.10) >l09t dpng b: Uiao nbi^m vu ve ubA (li&n b$ kiSn thurc sit dung di^n ndng) T«P CHI THIET BI SIAO DgC - SO 90 - 02/2013 • ^ HU'0'NGDANQUANLISI/DUNG 2.2.Thyv nghiem: Nghien cuu cua chung toi dd dupe tidn hdnh d Idfp th\rc nghiem (TN), 16p ddi chiing (DC): I) Trudmg THPT Tam Duong 2: IdpTN- llA4;16p DC-11A2, 2) Trudng THPT Tam Ddo: l6pTN-llAl;16pDC-llA2, 3) Trudng THPT Nguyen Viet Xuan: ldp TN-11A9; Idrp DC11A8 2.3 Phan tich ket qua: Qua qud trinh theo doi thyc nghipm tgicdc trudng THPT Nguydn Vidt Xudn,THPT Tam Duong 2,THPT Tam Ddo vd can cu vdo cdc ket qua thuc nghiem su phgm, chung tdi cd hai nhan xet sau: Quan sat nhung dien bien gio bpc cho thdy miic dp tich cue hpe tap ciia hpe sinh d nhdm TN cao ban nhdm DC, cu the: Ket qua quan sat cdc bieu hien tinh tich cue nhdn thuc cua hpe sinh nhdm TN deu cao han nhdm DC Q nhdm TN, hoc sinh tap trung suy nghT, tim tdi, de xudt cdc phuang an gidi quyet van de cho giao vien dgt d nhdm DC, hoc sinh tiep thu thu ddng, mac dii bpc sinh rdt chdm chu nghe gidng nhung it tham gia xdy dung bdi, it trao ddi, tranh ludn Ket qua hpe tgp cua hpe sinh d nhdm TN cao han nhom DC Kdt qud cdc bai kiem tra: Diem trung binh, diem khd, diem gidi cua hpe sinh d nhdm TN it ban d nhdm DC Cdc tham sd nhu phuang sai S^, dp lech chuan S, he sd bien thien V a nhdm TN ludn nhd hem d nhdm DC: tiic Id dp phan tan cac gia tri xung quanh cdc gia tri trung binh ciia nhom TN ludn nhd hon 32 nhdm DC Cdc dudng bidu dien sy phdn ph6i tan sudt cdc lan ki^m tra ciia nhdm TN deu ndm v^ phia bdn phdi vd djch chuyen theo ehieu tdng ciia diem s6 so voi nhdm DC Didu ndy ndi len chdt lupng hpe tap ciia hpe sinh a nhdm TN cao ban Hp sd studen theo tinh todn( t^ ) ludn Idn han hp sd studen bdng li thuydt( t^^ ) vdi dp tin cay 99%, chung to kdt qud cua hpe sinh d nhdm TNcao hon nhdm DC la thyc chdt Ket ludn Dgy hpe tich hop cd tdc dyng Id HS cd dupe khd ndng huy dpng cd hieu qua nh&ng kien thuc va ndng luc ciia minh dd gidi quyet mpt each hiju ich mpt tinh huong xudt hipn, hodc cd the ddi mat vdi mdt khd khdn bat ngd, mpt tinh hudng chua tung gap Khi van dung day hpe tich hpp cac npi dung kien thuc ve sdn xudt, sur dung dien ndng mdt cdch hop li, phu hpp vdi dgc diem HS day hpe vgt li se co mpt y nghTa d^c bidt.gdp phdn co the ndng cao chdt lupng ndm vung kien thuc, phdt trien tu vd ndng lye ciia hpe sinh Y nghTa quanfrpngciia hogt dpng tren day ciia GV khdng ehi dijng lai d chd tich hpp dupe cdc npi dung kien thurc ve sdn xudt, sir dyng dien ndng cho HS day mpt kien thuc vat ly cu the md cdn gpp phan ndng cao chat luong ndm vihig kidn thuc, phdt trien tu vd nang luc cho hpe sinh ndo di phdt trien cdc ndng luc a nhd trudng, NXB Giao dye, Ha Npi (Ngudi dich: Dao Trpng Quang, Nguyin Ngpc Nhi) (1996-Bdn djch; Nguydn Vdn Khai (2008) - Ndng cao chdt lu0tg gido due cua bdi hgc Vgt li d trudng trung hgc thdng (Tdi lipu bdi duang gido vien van dyng TTSPTH vao dgy h9cVatli),DHTN-l/2008 Nguydn Vdn Khdi - "Van dung tu tudng su phgm tich h(fp vdo dgy hgc vgt ly d trudng trung hgc thong de ndng cao chdt lugmg gido due hgc sinh" (De tdi NCKH cip Bp 2006), DHSP - DH Thai Nguyen.( 2006) Nguyen Sy Due (Chu bien)-Nguyen Trpng DiJrc - Do Ngpc Hdng - Ngd Van Hung - Nguydn Vdn Khdi - Nguyen Trpng SiJu, Tdi li^u gido due su dyng ndng luong tiet kiem vd hieu qud thong qua mgt so mdn hgc vd hogt dgng gido due ngodi gid len ldp a trudng THPT - Bd Gido due & Dao tgo Ha ndi n 2009 Summary This paper presents the theoretical^asis of teaching and application integration in learning some knowledge of energy use in high school Physics courses The paper also presents experimental teaching process in three cases: high school Tam Dao, Secondary Education Tam Duong 2, high school Nguyen Viet Xuan (Vinh Phuc) and Tdi li^u tham khdo Xavier Roegies.' Khoa have obtained some results suphgm tich hop hay lam the agencies • TAP CHI THIET BI GIAO DUC-SO 90-02/2013 ... d trudng trung hgc thdng (Tdi lipu bdi duang gido vien van dyng TTSPTH vao dgy h9cVatli),DHTN-l/2008 Nguydn Vdn Khdi - "Van dung tu tudng su phgm tich h(fp vdo dgy hgc vgt ly d trudng trung hgc... chirc cdc boat ddng day hpe bdi "Djnh lugt 6m ddi vdi todn mgch" L So dd Idgic xdy dyng kien thiic Trong m?ch k(n mrfi lita he giOa I £, R va r nhir ihtf nio? Mtfi lien hf d6 dif^c th^ hifn qua hf... ciia GV Hoat dpng cua HS Hoat dfng 1: 611 dinh liip, kilm tra bdi cu D$t \kn d l v i o bfti m^H Trong maeh kin, moi lien h? giOa I , e, R vd r nhu the niio? _Hpc sinh t i i Idi cau hoi Ho9t d$ag