^H IS'''' U NGHIEN CUU & UNG DUNG ^3 II XAY DyNG VA SU* DUNG BAI TAP PHAN HOA HEU VAH b£ P H A H A N C O L V A PHEHOL HdA HOC L0P11 • ThS Trang Quang Vinh Trudng Dgi hpc An Giang SUMMARY Teaching assignm[.]
NGHIEN CUU & UNG DUNG ^H IS'-U II ^3 XAY DyNG VA SU* DUNG BAI TAP PHAN HOA HEU VAH b£ P H A H A N C O L V A PHEHOL HdA HOC L0P11 • ThS Trang Quang Vinh Trudng Dgi hpc An Giang SUMMARY Teaching assignment-to raise issues is leamingstyle combined with two elements: assignment and raise issues to achieve the goal ofirmovative teaching methods in the current period is both ensuring one's power, closing object in education and bringing into play the positive academic, taking the form and developing detective capabilities, and solving problems in academic as well as in the lives ofstudents Keywords: Teaching assignment - to raise issues, alcohol phenol Ngay nh^n bdi: 10/5/2014; Ngay duyft d&ng: 30/7/2014 De phdt triln ndng Ivic tu di^ sang tgo, tu Idgic cho tftng cd nhan hpc sinh (HS) frong qud trinh hpc tgp vd gdp phin vdo vife nang cao chit lupng, Mfu qud dgy hpc Hod hpc d tmdng THPT, Bdi vilt gidi tiiif u mpt so bdi tgp phan hod - neu vin dl phin Aneol vd Phenol (Hod hpc ldp 11) Cdc bdi tgp phan hda neu vin dl da dupe thvrc ngMfm tgi tmdng THPT Ngi^en Dinh CMIU, Thj Xa Sa £>ec, Dong Thap Co sd li lugn xay dyng bai tgp phan hda neu van de 1.1 Ca sd ly lugn Bai tgp phdn hod frong dgy hpc neu vin dl Id nhftng bdi tgp hod hpe mdfrongquafrinhgidi, thudng xudt Mfn tmdc HS cac cau hdi cd dfc tinh "neu vin dl" Tuy theo myc dich dgy hpc, tinh phftc tgp vd quy md cfta tiing logi toan hda hpc md gido vien (GV) cd thi sft dvmg cac Mnh thftc phan hod khae Cd thi sft dvmg bai tgp hod hpc phan hod de dgy eho HS gidi qi^lt mpt van dk hpc tgp cd lien quan den nhftng kien thftc quan trpng hode dk vgn dyng tong hpp nMlu kiln thftc cfta chuong frinh Hod hpc, hode dl tgp dupt cho HS gidi qiQ^lt nhftnp vin dk thvrc tien dupe chpn lpe gan tuong ty vdi van de hpc tgp d tmdng nhung dd bien ddi it hay nMlu, tmh phftc tgp dupe nang cao din 1.2 Nguyen tdc xdy d^mg Thdng thudr^ tft mpt nfi dung cfta bdi tgp chftng ta cd till tiiilt kl ba vin dl theo ba mftc dp vdi myc dich hudng din vifc tu tai lifu mdi vd cy thi hod mftc dp kiln thftc cfta cd ldp Mftc dp 1: c l n hudn^ HS neu dupe cdc tmh chit rieng bift cfta cdc chll, cdc Mfn tupng, cdch ly giai nhftng ngi^^en nhan dan gidn nhit, trinh bay lgi kiln thftc CO bdn dvra vdo fri nhd Mirc dp 2: HS bilt vgn dyng kiln thiirc vdo dilu kifn mdi, sft dyng kiln thuc vao thyc tl Dk hodn vin dl HS cln cd sy phan tich so sanh dl neu dupe eac dilu kifn co bdn ddi vdi mft so ldp cdc chit, cdc Mfn tupng Mftc dp 3: Ld mftc dp cao nhit frong ba mftc df, mftc dp ndy yeu d u khdng cM phan tich, so sdnh md cdn phdi khdi audt hod cdc sl lifu thu dupe, sft dvmg chiing frong dieu kifn mdi phftc tgp hon Mft sl bdi tgp phdn hda - neu vin de phin Ancol va Phenol 2.L Bdi tgp (Bdi tgp l^ thuyit) * Ngi dung bdi t(yj: Cho cdc chit mpu etylic, axit pheme, axit cacbomc, axit axetie Sdp xip theo CMIU tdng df Imh dfng nguyen tft hidro frong nhdm - OH Gidi tMch vd lly vi dy minh hpa * TMit kl theo kilu phdn hod - neu vin dl Muc dg 1: Sdp xip theo CMIU tdng dp linh dpng nguyen tft Mdrofrongnhdm OH ciia cdc chit sau (cd gidi tiuch): CflpU, C^UpU, CH3COOH Mire dg 2: Bai toan glc Mire dg 3: Cho cdc chit: C^HjOH, C^HjONa, CgHjOH, CgHjONa, CH3COOH, CHjCOONa Nhftng cdp chit nao phdn ftng dupe vdi nhau? Vilt cdc phuong frinh phdn ung, gidi tiiich vd gM dilu kifn phdnftngnlu cd 2.2 Bdi tgp (Bdi t^ If thuyit- thifc nghifm) * Ngi dung bdi tgp: Mpt hon hpp gom mpu n-butylic, phenol (Idn^, bdng phuong phdp hod hpc hdy tach rieng tiing chat khdi hon hpp * Thiit ke theo kiiu phdn hod - neu vdn di Mirc dg 1: Bdng phuong phdp hda hpc hdy phan bift cdc chit ldng rieng bift sau: mpu n-butylic, phenol (ldng)? Mirc dg 2: Bai todn goc Muc dg 3: H5n hpp A gom mpu n-butylic, phenol (ldng) vd amlin Trinh bdy phuong phdp dl tach rieng tiing chit khdi hon hpp ATAP CHf THI^ BI GlAO DMC - Sd 108 - 8/2014 • 41 II NGHIEN CUU & UNG DUNG 2.3 Bdi t$p (Bdi tgp tdng hgp) ^ * Ngi dung bdi tgp: Cho 11 gam hon hpp hai mpu no don chftc kl tilp frong ddy dong ddng tdc dyng hit vdi nafri thu dupe 3,36 lit kM H^ d (dktc) Vilt cdng thftc clu tgo cua hai rupu frgn * Thiit ke theo kiiu phdn hod - niu vdn di Muc dd 1: Hon hpp A gom hai mpu metylic vd etylic Cho 12,4 gam A tdc dyng hit vdi nafri thu dupe 3,36 lit H2(dktc) tinh khoi lupng mSi mpu hon hpp A Mirc dg 2: Bdi todn goc ^ Mite dg 3: Dit chdy hodn todn a pam hon hpp hai mpu tiiupc eftng mft ddy dong ddng thu dupe 70,4 gam CO2 vd 39,6 gam HO a Xdc dinh cdng thftc cau tgo cfta hai mpu vd khoi lupng moi mpu hon hpp Bilt ty khoi hoi ciia moi rupu so vdi oxi deu nhd hon b Cho a gam hon hpp hai mpu trgn tdc dvmg vdi Na du Tinh till tich Hj thu dupe d dktc Tien trinh thyc nghifm su phgm Chftng tdi chpn Trudng THPT Nguyin Dinh Chilu, Thi Xd Sa Dec, Tinh Ding Thdp dl tiln hdnh dgy phin Ancol vd Phenol vdo hpc ky II cfta ndm hpc 2012-2013.0 ldp dii chftng (DC) la lAl (35 HS), GV sft dyng gido dn binh thudng, ldp thyc nghifm (Tl^ Id 11A2 (33 HS) GV tiiilt ke gido dn cd sft dyng bdi tfp phdn hda - ngu vin dl Cd hai ldp diu hpc chuang trinh Hda hpc 11 vd khdng phdi la ldp chpn, ciing mft GV dgy Chftng tdi cho HS ldm bdi kilm fra 45 phut (ty lufn) d hai ldp (dl bdi kiln fra nhu nhau, ciing dap dn vd eftng GV chim) dk ddnh gid Mfu qud vife sft dyng bdi tfp phan hda - nfu vin dl Kit qua thyc nghifm su phgm dupe trinh bay frong cdc bdng dudi day: Bdng Bdng phdn phdi tdn sd, tdn sudt vd tdn sudt liiy tich (Ldp llAlvdllA2) Dilm 10 S So HS dgt diem Xi DC TN 0 0 0 7 35 33 % HS dgt dilm Xi DC TN 0.00 0.00 0.00 0.00 0.00 0.00 2.86 0.00 11.43 3.03 22.86 12.12 20.00 21.21 17.14 24.24 14.29 18.18 8.57 12.12 2.86 9.09 100.00 100.00 %HS dgt diem Xi trd xuong DC TN 0.00 0.00 0.00 0.00 0.00 0.00 2.86 0.00 14.29 3.03 37.14 15.15 57.14 36.36 74.29 60.61 88.57 78.79 97.14 90.91 100.00 100.00 4^ • TAP CHf THI^BIGlAO DMC-sd 108-8/2014 Bdng Tdng hgp phdn logi kit qud hgc tgp cua HS Sd%HS Dii Ylu, kgm Trung binh Khd, gidi tupng (8-10) (0-4) (5-7) 39.39 57.58 3.03 TN E)C 14.29 60.00 25.71 Hinh Dd thi dudng liiy tich 70.00 • TN • OC Hinh Biiu ddphdn logi kit qua hge tgp eua HS Phdn tich kit qud thyc nghifm: Kit qud TN cho tiily, chit lupng hpc tfp cfta HS cdc ldp TN cao hon ldp DC, thi hifn: Dilm tinng bmh cfta HS cdc nhdm TN ludn cao hon nhdm DC Ty If % HS dgt dilm khd gidi d nhdm TN ludn cao hon nhdm DC vd ti If % HS cd dilm ylu kem d nhdm DC cao hon nhdm TN D I tiii dudng luy tich cua HS nhdm TN ludn ndm ben phdi va pMa dudi dudng luy tich efta nhdm DC, dilu dd chftng td chat lupng hpc tgp cua HS nhdm TN cao hon HS nhdm DC Nhu vfy bai tgp phdn hda - neu vin dl ddm bdo tinh ehinh xae, tinh khoa hpc, phft hpp vdi dii tirpng HS, nang cao dupe khd ndng tilp thu vd vgn dyng kilntiiftc,khd ndng ldm vifc dfc lgp, tich cyc vd phdt friln tir sdng tgo cua HS Kit qud thyc nghifm cho tiily d ldp TN cd xu hudng tot hon ldp DC, dieu cho phep budc diu khdng dinh tinh hifu qud cfta vifc sft dyng bai tgp phdn hda - neu vin dl dgy hpc Nhu vgy, cdc kit qua tiiu dupe cdn bdn dd xdc nhgn gia thuyet ciia de tdi II NGHIEN CUU & UNG DUNG Ket lugn Vdi vife xay dvmg cac bdi tgp phan hda - neu vin dk phin Ancol vd Phenol Hod hpc ldp 11, tinh phftc tgp lien tyc ciia cdc vin dl cdc bdi tgp dd tgo digu kifn eho HS d nhdm thft nhit tilp xfte nMlu vdi cac bdi tgp co bdn, HS nhdm thft hai vd nhdm thft ba Mnh thdnh ky ndng dn tgp tdi lifu qua cdc vin dl thft nhit vd phat friln hogt dpng tu tich eye kM trd ldi cdc van dl phftc tgp hon Nhung bai tgp nhu till da nang cao Mfu qud dgy hpc Hda hpe theo hudng vfta phft hpp vdi ddi tupng nhgn tiiftc, vfta phat huy ndng lyc gidi qi^et vin dl hpe tfp cfta HS Kit qud thyc ngMfm su phgm budc diu ^ dgt dupefrongvifc phdt huy tinh tich eye, ndng lyc sang tgo, sy hftng thft cho HSfronghpc tgp mdn Hda hpc Tdi lifu tham khao Le Vdn Ndm (2004) Siir dyng dgy hgc phdn hod dgy hge neu vdn di bg mdn Hod hgc Tgp cM Gido dvic, so 101 Le Vdn Ndm (2005) Xdy dyng cdc bdi tgp hod hgc theo hudng phdn hod - niu vdn di Tgp cM Gido dye, sd 123 Le Vdn Ndm, Trang Quang Vmh (2012) Xdy w w \ \ dyng hf thdng bai tgp phdn hod - niu vdn di phdn hidrocacbon vd ddn xudt halogen Tgp cM Hod hpc vd Ung dyng, sd 4, fr.44-47 Nguyen TM Sftu, Le Vdn Ndm (2009) Phuang phdp dgy hge Hda hge NXB Khoa hpc vd KItiiugt.Ha NpL IIIIIIIIIIUIIIIIIIIIMIUIIIIIIHIUIIIiniMMIIMnMiniUIMIIMiniUniHIMIIillllMnilHniHUIMHIIIIIIIIIUIIMIIIIIMIIIIIMHIIIIIIIHHHIIMIIMIIHIiniliniHIIIIUIHIIIMIIII^ DAY MANH CONG TAC K I I M sd dd cd till gdp y, dilu chinh sau dd dua phuong hudng hogt dfng rieng cho don vi D I nang cao chit lupng ^ang dgy ciia cdc trudng ndi chung, cdc trudng dao tgo vdn hda nghf tiiugt ndi rieng, chftng ta cln diy mgnh cdng tac KT-DG Ti^ nMen, dl lam tot cdng vifc tren mpt each Mfu qua, cdng tac phai dam bao tinh chinh xdc, khach quan, k{p thdi vd cdng khai KM kilm tra nhd trudng phdi thdng bdo rd npi dung kilm tra va cM nhftng mdt dupe hode chua dupe dl kip thdi dilu chinh nhftng tMlu sdt, bilu duong nhan rpng nhftng nhdn tdtichcyc Tren eo sd dd nha trudng neu cac giai phap, cy till: Gidi phdp 1: Doi vdi GV chuyen nganh cln: Kilm fra gido dn gidng dgy, tiln dp thvrc Mfn npi dung, chuong trinh gidng dgy; Tham quan, dy gid theo fruih ty tft td den khoa chiQ^en mdn; - Kilm tra lich smh hogt to chuyen mdn, tgp huan theo tiing chi^en dk', - Theo ddi cdng tac chft nMfm ldp (gM nhgt ky ldp, vao dilm so hpc bg); Kilm tra vifc tham gia cdng tdc ngMen cuu khoa hpc cfta GV, thvrc Mfn nfi qi^, c^ chi hogt dfng cua nha tmdng Gidiph^ 2: Sau kM kilm tra, nha tmdng phdi cd danh gid bdng vdn ban vl mftc dp hoantiianhva chua hoantiianhcfta GV dl kip thdi ddn die, thftc diy ^ i tupng kilm tra triln khai cdng vifc cho dung tien dp Vifc ddnh gid cd cMnh xdc hay khdng d n dya tren tieu cM cy thi vl: - Dgo dfte nghi ngMfp; - Triln khai thyc Mfn kl hogch gidng dgy; - Chit lupng ^ d dgy; - Cong tac chft nMfm ldp; - Chip hanh qi^ che hogt dpng efta nha trudng; - C^i% tac ngMen eftu khoa hpc vd cdc hogt dfng khae nha trudng to chute, TRA rr^,.*«-,.»««; Ket lugn Thdng qua kilm tra, nhd tmdng sd danh gid dupe thyc trgng hogt dfng dgy hpc cua GV, giftp hf thing qudn ly nhd tmdng ddnh gid xip logi frinh df cfta hp dupe chinh xdc hon Qua dd, ndng cao nhgn thftc vl cdng tac kilm tra cho can bp, GV tmdng vl tinh than trdeh nMfm, thvrc Mfn tot nMfm vy dupe giao, gdp phin tich cyc vdo cdng tdc ty kilm tra cua cdc don vi Nhu vgy, cd thi khdng dinh, cdng tdc KT-DG nlu dupe triln khai mpt each ngMem tue, dong bp se cd tac dpng trvrc tiep den qua trinh nang cao chdt lupng dgy hpc, dong thdi, tdc dpng tich eye frong vifc xay dvmg vd du/ fri nl nip ky cuong, gdp phin quan trpng thftc diy sy phdt frien cua nhd tmdng cang vftng mgnh Tai lifu tham khao Quang Anh - Ha Ddng (2003) Nhitng diiu cdn biit ve hogt dgng tra kiim tra gido dye vd ddo tgo NXB CMnh tri Quoc gia, Hd Npi Nguyen Dire CMnh (2008), Ddnh gid chdt Itrgng gido dye, khoa hgc suphgm NXB Dgi hpe Quoc gia Ha Npi Nguyen Xuan Thanh (2009) Kiim tra vd tra gido dye NXB Dgi hpe Su phgm Ha Npi Nguyen Vdn Kim - Vu Vdn CMen - Phgm Thu Hiln Vdn Tiln Mai (2001) Td chire vd hogt dgng trg kiim tra, gidm sdt ciia mgt sd nude trin thi gidi NXB CMnh fri Quoc gia, Hd Nfi TAP CHI THI^ BI GIAO DMC - Sd 108 - 8/2014 • 43 ... tiln hdnh dgy phin Ancol vd Phenol vdo hpc ky II cfta ndm hpc 2012-2013.0 ldp dii chftng (DC) la lAl (35 HS), GV sft dyng gido dn binh thudng, ldp thyc nghifm (Tl^ Id 11A2 (33 HS) GV tiiilt ke... & UNG DUNG Ket lugn Vdi vife xay dvmg cac bdi tgp phan hda - neu vin dk phin Ancol vd Phenol Hod hpc ldp 11, tinh phftc tgp lien tyc ciia cdc vin dl cdc bdi tgp dd tgo digu kifn eho HS d nhdm... tiiilt ke gido dn cd sft dyng bdi tfp phdn hda - ngu vin dl Cd hai ldp diu hpc chuang trinh Hda hpc 11 vd khdng phdi la ldp chpn, ciing mft GV dgy Chftng tdi cho HS ldm bdi kilm fra 45 phut (ty lufn)