Tap chi khoa hgc Tnicfng Dgi hgc Quy Nhan S^4, Tap VIII nam 2014 DAY HQC HOA HQC THEO DJNH Hl/C(NG PHAT TRIEN NANG LlJC THONG QUA H | THONG BAI TOAN TIEP CAN CHl/C(NG TRINH DANH GIA HQC SINH QUOC TE ([.]
Tap chi khoa hgc Tnicfng Dgi hgc Quy Nhan - S^4, Tap VIII nam 2014 DAY HQC HOA HQC THEO DJNH Hl/C(NG PHAT TRIEN NANG LlJC THONG QUA H | : THONG BAI TOAN TIEP CAN CHl/C(NG TRINH DANH GIA HQC SINH QUOC TE (PISA) LETHIDANGCHP Bffdc sang thd'ki XXI, td'c dp phat trien nhanh chdng ciia xa hoi, vdi nhffng bie'n doi hen tuc, d^ chuan bi cho thd^ he tre do'i mat va dffng vffng trffdc nhffng thdch thffc cua ddi sdng, thi chffdng trinh gido duetid'pcdn theo dinh htfdng phat trien ndng ltfc hay giao due tiep can nang ltfc, dang ttd thdnh xu htfdng chu yeu thu hut sif quan tam ciia da so' cac ntfdc, dtfdc coi la mpt ttong nhffng each tiep can tdt nhat ttong viec xay dffng chtfdng ttinh giao due nham dapffngnhffng ddi hdi cua xa hpi Hda hoc la mpt mon khoa hpcffngdung mang tinh thffc nghiem cao Trong day hpc hda hpc, ngoai day kien thffc li thuyet fhi viec ren luydn cac ki ndng qua tiinh khoa hoc (gom phffdng phap khoa hpc, tff khoa hpc, ttf phd phdn) vd vide vdn dung kid'n thffc vao giai quyd't cac van de thtfc tien la cd'p thiet vd mang tinh thdi stf Tuy nhidn, ttong day hpc hda hpc hien nay, viec ddnh gia qud chff ttpng dd'n kid'n tiiffc ma chtfa quan tdm nhieu den vide hpc sinhffngdung cac kid'ntiiffc,ki nang, kha ndng phdn tich, li giai va truyen dat mot each hieu qua xem xet, dien giai hay giai quyet cdc vd^n de hpc tdp va thtfc tidn Bai vid't xin trinh bay ve day hpc hda hpc theo dinh htfdng phdt ttien ndng ltfc d phd thdng thdng qua cac bai tap hoa hpc tiieo tid'p can chtfdng trinh danh gia hpc sinh qudc te (PISA) NANG UfC, NANG Ll/C KHOA HOC VA CAC CAP D O N A N G LLTC KHOA HOC Ndng ltfc Id mdt khai nidm dtfdc de cap den nhieu tai lidu nghien cffu vl giao due ttong va ngoai ntfdc theo nhffng cdch tidp can khac Du each phat bieu cd khde nhau, nhtfng cac each hieu deu khang dinh: Ndi den nang ltfc Id phai ndi dd'n khd ndng thtfc hien, la phai bid't ldm chff khdng chi bid't va hieu Trong qua trinh day hpc d phd thdng, khdi nidm nang ltfc dtfdc hieu bao gdm ca kie'n thffc, ky nang va tiiai dd ti'ch cffc Day va hpc hda hpc d phd thdng can tap trung phat trien nhffng nang Iffc phd thdng cho hpc sinh bao gdm nang Iffc todn hpc phd thdng, nang ltfc dpc hidu phd thdng va ttong tdm la phat Uidn nang ltfc khoa hpc phd thdng, cung vdi ki ndng giai quyd't van de Theo PISA - mpt ttong nhffng chffdng trinh ddnh gia nang Iffc hpc sinh qudc te' CO uy tin va phd bien nh^t hien nay,tiiindng life khoa hoc phdtiidngdffdc the hidn qua L Tffi DANG CHP vide: Hpc sinh CP kien thffc khoa hpc vd bid't sff dung kidn thffc dd nhdn dffcfc cdc va'n dd khoa hpc, gidi tillch hidn tifdng khpa hpc vd riit kdt ludn tren cP s6 chffng minh ve cac vd'n de lifln quan den khoa hpc Hpc sinh hieu dffpc nhffng dac tinh cda khpa hpc nhff mflt dang tii fliffc cua Ipdi ngffdi vd Id hoat dpng flm toi khdm phd cda ngffdi; hpc sinh nhan thffc dffpc vai tio ciia khoa hpc vd sdn sang tham gia nhff mflt cflng ddn tich cffc, vdn ditng hieu biet khoa hpc de giai quydt cdc va'n de lidn quan Vdi quan didm danh gia nay, Hnh vffc khoa hpc dffde ddnh gid theo ba ca'p dp vd nhafn manh tdi cdc bdi cdnh, tinh huo'ng tiong dd cdc cd nhan van dung kidn thffc, ki ndng, thdi dp vd kinh nghiem Cap dQ 1: Nhan biet cdc vdn di khoa HQC Hpc sinh bidt nhan dien nhffng van de ed the nghien clhi, khdm pha mpt cdch khpa hpc; xac dinh dffdc nhffng tff khda chinh dd tim kidm cac thpng tin khpa hpc; nh^n nhffng net dac Unftig chu yeu cua mpt nghidn cffu khoa hpc Cap d^ 2: Gidi thich hi^n tu^ng mOt cdch khoa hqc Hoc sinh co the dp dung kidn thffc khoa hpc vdp mdt tinh hup'ng cu thd, md ta vd gidi thich cac hien tffdng mflt cdch khpa hpc vd c6 the dff dpdn nhffng thay ddi tipng tffdng lai Cap d^ 3: Sic dung chting evt khoa hl/c, li gidi cdc chiing cut rut ket lu4n Hpc sinh hieu vd biet sff dung, Ii gidi cdc chffng clJ khoa hpc dd nit ket luan; dffa cac gidi fliich khpa hpc de ung hp hpdc bac bd cdc nhdn dinh; tdng hdp cdc kdt ludn va chffng cff de dff doan sau kdt ludn s i r DUNG BAI TAP HOA HOC (BTHH) THEO TIEP CAN PISA NHAM THAY DOI PHUONG PHAP DAY HOC HOA HOC THEO BINH H U d N G PHAT TRIEN NANG L I / C Day hpc phdt tiidn ndng lUc khflng cd nghia la mdu fliuan vdi vide tiang bi cho hpc sinh kien fliffc, ki nang ma cd bdn Id nhSm tiang bi chp hpc sinh ndng life hdnh dpng CO hiSu qua tten cd sd cd kidn thffc vd ki ndng gan vdi j fliffc vd tiidi dp Phffdng phdp day hpc hda fliep quan didm phdt tridn ndng Iffc khdng chl chii j tich cffc hda hpc sinh ve hoat dpng ui tue, ma chu -y rdn luydn ndng ltfc giai quyet va'n de gin vdi nhffng flnh hudng cua cupc sfl'ng vd nghd nghidp, ddng Uidi g i n hpat ddng tti tiid vdi hpat dpng thffc hanh, fliffc tiln Dd ldm dffdc viec ndy can fliay dpi phtfdng phap day hpc fliep htfdng gidm bdt flidi gian day li thuydt tten ldp, giiip hoe sinh hen he flitfc tien hoac dinh htfdng cho hpc sinh ta hpc, tff flm hidu, md rdng hieu bidt tff nhffng kidn diffc hea hpc c6 hen quan Tdng cffdng viec hoc tap ttong nhdm, ddi mdi quan h e gido vidn-hoc sinh flieo hffdng cpng tac cd y nghla quan ttpng nham phdt ttien nang Iffc xa hpi Nhffng phffdng phdp day hpc mdi nhff day hpc theo nhdm, day hpc tfch hdp, day DAY HOC H A HQC THEO BINH HUONG PHAT TRIEN NANG LUC 41_ hpc dff dn, d^y hpc gidi quydt van de, rat thudn Idi dd phat trien ndng Iffc cho hpc sinh Chffng ta cilng xem xet mot vi du bdi thffc hanh sd - Hda hpc 11 dtfdc day theo dinh htfdng phdt trien nang ltfc cho hpc sinh thdng qua cac bai tap theo tid'p cdn PISA: Bdi 34 Bdi tht^c hdnh Diiu chi'vd tinh chat cua etilen, axetilen I CYadn bi L D ^ n g ciji t U nghidm - Ong nghidm, dng nghidm cd nhdnh - Den cdn - Nut cao su mdt lo day vffa mieng dng nghidm - Ong hut nhd giot - Ong d i n hinh chff L, dng ddn caosu - Ong thuy tinh cd dau vudt nhpn - Chdu thuy tmh - Bp gia thi nghiem thtfc hanh - Kep hda cha't, k e p dng nghidm b^ng g§ - Gid de dug nghiem tang - Kieng, Itfdi amiang Hda chart - CjHjOH khan, dung dich AgNO,, NHj, da bot, CaC^, H,SO^ ddc, dung dich KMnO^ loang, nffde, dung dich brom lodng Phieu hpc t $ p - Gido vidn (GV) chuan bi cdc phidu hpc t^p de hpc sinh (HS) hpdn thdnh vdo phidu ttiay cho viet tffdng tiinh thi nghiem - HS dn lai cdc kidn thffc ve tinh chd't hda hpc ciia etilen vd axetilen, nghidn cffu ki flii nghidm sdch giae khpa (sgk) bdi 34 - GV n h i c nhd HS khdng dffdc mang sgk vap phdng thi nghiem, mpi nhdm chu^n bi gia'y, bdt ghi lai ket qua flii nghiem Phieu hgc t4p Tin nhom: B a i t # p 1: Didu chd'etilen Sdch gide khpa Hda hpc 11 cd hffdng dan qud trinh l a m thi nghidm dieu chd' etilen: - Chp ml ancol etylic khan vap dng nghidm khfl, ed san vdi vien dd hot hode cat, sau dd cho ttiem tirng gipt khpang ml dung dfch H^O^ dac, ddng flidi lie deu - Day dng nghidm bSng ndt cd kdm dng dan bang thuy tinh dau vudt nhpn LE THI DANG CHI* - Dun ndng deu dng nghiem rdi tap tiung dun manh vdo phin hdn hdp phdn iS^g, ttanh de bd'c den cham vao tiianh dng nghidm dd gay nfft vd dng nghidm - Dieu chinh ngpn luTa cho hdn hdp khdng hi ttao ldn dng dan Cdu hoi I.I: Cho da bpt hoac cdt vdo dng nghidm cd tac dung: A dd dun hdn hdp dung dich sdi deu B de phanffngxay nhanh hdn C de hon hdp dung dich khdng hi ttdo len dng ddn D dd' loai bd cac tap de fhu dtfdc etilen tinh khie't Cdu hoi 1.2: Khi etilen nhe hdn khdng va khdng tan ttong ntfdc, thu etilen bang phtfdng phdp nao? Cdu hoi 1.3: Mpt nhdm HS dpc htfdng dan, tien hanh thi nghidm va dtfa cac Itfuy Ltfu y cua hp cd dung theo htfdng dan va hinh ve md ta? Khoanh vao Ddng bode Sai iMuy Rdt tff tff rffdu vap axit va lac deu Dun taptiungngay vao day dng nghiem, dd hfln hdp sdi nhanh Khi dffng ttii nghiem phai thdo o'ng ddn ttffdc tat den Ddn sinh qua fl'ng nghiem cd bdng tim kiem ddc dd loai bd SO^, 00^, ldm sach kW etilen Trd IM BAng/Sai Bung Sai Bung I Sai Bung Sai Cdu hoi 1.4: Viet phffdng tiinh hda hpc (PTHH) cia flii nghidm dieu chd etilen ttong phong ttii nghidm theo md ta ttong hffdng ddn? Bai t^p 2: Tinh chfl't cua etilen Dettifftinh chd't cua etilen mdt hoc sinh da thffc hien lln Itfdt cdc thi nghifim: DAY HOC HOA HOC THEO BINH H I J < N G PHAT TRIEN NANG LlJC 43 Thi nghi$m I: Cham lu'a ddt d dau dng vudt nhpn cua dng ddn Thi nghi$m 2: Ddn lan Iffdt qua binh chffa dung dich brom lodng Thi nghidm 3: Ddn lln Itfdt qua binh chffa dung dich KMnO^ loang Sau thffc hidn cdc thi nghidm, ban hpc sinh da ghi lai cac hidn tffdng ttong bang: Thi nghi$m Thi nghidm 1: Thi nghi?m 2: Thi nghidm 3: Hi$n tifQtng Ngon liJa chay mau vdng Dung dich tff mdu vdng cam sang khdng mdu Dung dich dan mat mau tim nhat va cd kdt tua ndu den Cdu hoi 2.1: Detid'nhanh thu*tinhchat etilen, trffdc dieu che etilen em can chu^n hi sfn nhffng hda chat va dung cu nao ? Cdu hoi 2.2: Dffa vdo hidn ttfdng ttong thi nghiem cdc ke't luan sau la dung hay sai? Ke't lu&n Etilen v4 metan cd tinh chd't hoa hoc tffdng ddi gidng Mau ngon lijfa cua etilen va metan la khac Etilen tac dung vdi dung dich brom Ket tua mau den la Mn Diing hay sai Biing Sai Biing/Sai Diing / Sai Biing / Sai Cau hdi 2.3: Hay vidt PTHH minh hpa cho ttii nghiem vd 3? Bai tdp 3: Didu chd axetUen HjO Cdu hoi 3.1: Trfln hinh ve md ta ttil nghiflm dieu che axetilen, em hay cho bidt nhffng hda chd't vd dung cu can chua'n bi Cau hoi 3.2: Trong md hinh thi nghidm trdn, dd dieu chinh Itfdng thodt hoac muo'n dffng phdn ffng ta phdi iam thd nao? LETHID^NGCHP Cdu hdi 3.3: Binh chffa dung dich NaOH ttong thi nghiSm cd tic dung: A ldm khfl axetilen B dieu chinh Iffdng sinh C hap ttiu COj D ldm sach axetilen Cdu hoi 3.4: Em hay vidt PTHH ciia phdn ting dieu chd axetilen ttieo hinh ttii nghidm Bai tip 4: Thii: tinh chd't cua Axetilen Trong phdng thi nghidm de kidm tia tfnh chd't cua axetilen, cd the tid'n hdnh nhffng thi nghiSm ddn gidn hdn dffdc mfl td theo nhffng md hinh sau: |^H,0 2A 2A f C2H2 i • CaCj^ fi L Cau hoi 4.1: Qua qua ttinh flii nghidm, mdt hpc sinh da dffa nhffng Iffu y sau dd ttii nghidm flianh cong va hidn ttidng de quan sdt Theo em nhffng Iffu -j diing hay sai? DAY HQCHbAHpC THEO DINHfflJClNGPHAT TRISN NANG LUC Li^y Biing hay sai Cdn chu^n bi san cac dung dich brom, KMnO^, AgNO^/ NH3 lap dung cu xong mdi tidn hanh dieu chd' axetilen Dung / Sai Cac dung dich brom, KMnO^ cin lay ndng dp cao dd ddm mdu dl quan sdt Bdng / Sai Chuan bi dung dich AgNOj/ NH3 bang cdch nhdtiiftiJf dung dich NH3 vdo dung dich AgNOjVa idc nhe, ttong dng nghidm sd cd kdt tiia ndu den cua AgOH la dtfdc Diing / Sai Cdu hoi 4.2: Sau thtfc hidn thi nghiem, em hay didn hidn ttfdng ciia thi nghiem ttfdng ffng vdi hinh md ta Hinh thi nghidm Hi$n ti^ng thi nghidm 2A 2B 2C 2D II Phifdng phap Hoat dpng theo nhdm, thao ludn, ddm thoai, thtfc hdnh, trtfc quan III Tidn trinh giang day On djnh ldp: phut Kiem tta si sd' va viec chu^n hi cfia HS vao phong thi nghidm (khau ttang, gang tay, gia'y, biit, phan nhdm trffdng, ) L THI DANG CHI- Bai mdi Hoat dgng cua GV vd HS HD 1: Kiem tta hoat dpng chuin hi cfia HS ttffdc thi nghidm Ngi dung bdi hgc I Nhifng Iifti ^ trrfdc lam thi nghidm GV: Neu muc dich, yeu clu ttong cac tiii nghiem GV: Yeu cau cac nhdm hodn thdnh cdc cau hdi ttong phieu hoc tap: Bdi I (cau 1, 2, 3); Bai (cdu 1); Bai (cdu 1,2, 3); Bdi (cau 1) HS: Thao ludn ttd Idi tiieo nhdm GV: - Thu lai phidu hoc tap - Thao luan todn ldp - Bo sung, tdng ket nhu^g Iffu ^ vdi mdi thi nghiem HD 2: Tien hdnh thi nghi$m HS: Mdi nhdm vd vi tii phan cdng nhiem vu, la'y hda chd^t lap dung cu vd tidn hanh thi nghidm, quan sat, ghi lai hien tffdng n Didu chd' va thu: tinh chat cua etilen GV: Quan sat qua Uinh lap diing cu, Id'y hda chd't cua mdi nhdm, nhdc nhd didu chinh kip thdi HB 3: Tien hdnh thi nghidm HS: Mdi nhdm ve vi tri phdn cdng nhiem vu, Id'y hda cha't lap dung cu vdtid'nhanh thi nghidm, quan sat, ghi lai hidn tffdng GV: Quan sdt qua tiinh lap dung cu, Id^y hda chd^t cua moi nhdm, nhac nhd dieu chinh kip thdi HS: Dpn dep sau thi nghidm HB 4: Hodn chinh phi^u hgc tq.p GV: Ydu can HS hoan nhffng cau hdi cdn lai ttong cdc phidu HS: Thao luan vd hoan cdc phieu hpc tap GV: Thdo ludn trffdc ldp nhffng cdu hdi ttong phieu hpc tdp III Didu chd vathuT tinh chS't cua axetilen DAY HOC HOA HOC THEO BINH HUCtNG PHAT TRIEN NANG L\JC 47 Cung c6', dan do: Sau HS hoan thdnh cac thI nghiem va bai tdp tten cdc phidu, GV nhdn xet rdt kinh nghidm ve buoi thi nghiem Dan dd HS vd sinh phdng thi nghidm va chuan bi bai mdi Phdn tick: Cdc bai thffc hdnh hidn su* dung chfi yeu phffdng phap hpc nghien cffu sach giao khoa, giao vidn gidi thieu tid'n trinh thi nghidm, hpc sinh tid'n hanh thi nghiem theo nhdm va bao cao lai ket qua bang tffdng trinh thi nghidm Phtfdng phap day hpc dd dan den tinh tiang y lai, chep bao cao cfia Sau thffc hanh giao vidn cung khdng cd didu kidn de kidm tta sff vdn dung kid'n thffc cfia hoc sinh ttong nhffng tinh hudng cu thd Bi khac phuc tinh ttang nay, chung tdi da xay difng nhffng cdu hoi va bai tap hda hpc tiieo tidp cdn PISA dffa tten nhffng thi nghiem md hpc sinh da dffdc thffc hidn hodc quan sdt nham kiem tta cdc ki nang dff dodn, quan sat, thffc hanh, phdn tich kd't qud thi nghidm, giai thich hidn tffdng, Giao vidn cd the dffa bdi tap vao dau tidt thtfc hanh kich thich sff tim tdi ttong thffc nghidm cua hpc sinh, hodc dffa vao cudi buoi thffc hanh thay cho viec hpc sinh vid't tffdng trinh thi nghidm Phdn tich y nghta cua bai tdp: Cdc cdu 1,2, (Bai 1); Cdu I (Bai 2); Cdu 1,2, (Bdi 3); Cdu (Bai 4) deu cd tdc dung kiem tta sff hidu, biet va kha nang xac dinh sfi dung diing nhffng dung cu vd hda cha't ttong mdi thi nghiem; ddnh gia dung nhffng Iffu f ttong moi thi nghiem de dam bao an toan vd cdng Vdi he thdng cdu hdi dffdc dtfa tttfdc tidn hanh till nghidm, la btfdc chuin bi cho hpc sinh cd dinh htfdng trtfde cho moi thi nghidm ve thao tac, cdc Itfu y, qud trinh tidn hanh, dd cd the thtfc hidn cdng Cdc cdu (Bdi tap 1); Cdu 2, (Bdi tdp 2); Cdu (Bdi tap 3); Cau (Bdi tap 4) dtfdc dtfa sau hpc sinh ddtid'nhdnh xong cac thi nghidm, nham kidm tta cac thi nghidm cd diing cac hidn tffdng khdng, tff gido vidn ddnh gid dffdc hieu qud qua trinh thtfc hdnh cua hpc sinh; kiem tta kid'n thffc cua hpc sinh qua vide gidi thich kdt qua till nghidm bang cac phtfdng tiinh hda hpc DANH GIA, KIEM TRA TRONG DAY HOC HOA HOC THEO DINH HLTC^NG PHAT TRIEN NANG L U C Theo quan diem phat trien ndng ltfc, vide ddnh gid ket qud hpc tap khdng la'y viec kiem tta kha ndng tdi hien kien thffc da hpc lam trung tam, md chu ttpng kha nang van dung sang tao tii fliffc ttong nhffng tinh hudngffngdung khde Trong ddnh gid kidm tta ddi vdi mdn hda hpc cin xac dinh dffdc cdc muc tidu ve kidn thffc, kT nang, cdn cff tten chuan kid'n thffc ki nang cua mdn hda vd cd'p dp cfia nang Iffc khoa hpc, de lffa chpn nhffng ddn vi kidntiiffckhdng chi cd S nghia vd mat hda hoc md cdn gan lien vdi thtfc tidn, vdi ddi sdng cfia cd nhdn va cdng ddng nhdm phdt huy dtfdc ndng ltfc khoa hpc, nang ltfc phat hien vd gidi quydt vd'n de, cfia hpc sinh nhtfng khdng qud khd, qua triiu ttfdng hodc lam ma't di ban chd't hda hpc LE TBI DANG Cffi- Xet vi dy: Bdi tap: BQ phdn chuyin doi xiic tdc cua xe Khdittidicua cac phffdng tidn giao thflng Id mdt ttong nhffng nguyen nhdn chinh gay fl nhiem khdng d nhffng dfl thi ldn HiSn nay, hau hdt cac xe hiSn dai deu da dffdc ttang bi mflt bfl chuyen ddi xiic tdc ldm cho cdc khiflidicua xe it gay hai cho ngffdi va moi ttirdng Sau day Id mo ta mpt sd di vap bp chuyen dd'i va chuyen flidnh nhffng khac di khei nd .Q p h ^ dmyio doi xfic L£C Cdu hoi I: Tai cd nhffng xe mdy hodc d td xd rd^t nhieu khei mdu den? Cdu hdi 2: Ndi chinh xdc thi bp phdn ehuydn ddi xiic tdc cua xefltp cd nhiem vu gi: A Lpc vd tdch khpang 90% cac chd't ddc hai khdi thdi xe B Ldm chp qua tiinh chay tiong md td dien triet dd va sach se hdn C Loai bo cac cha^t ban ttong nhidn hdu D Chuydn ddi khodng 90% cac thdi ddc hai nhffng chat it ddc hai Cau hoi 3: Sff dung thflng tin ttong hinh tten de dffa mflt vi du vd cdch xiic tdc chuyen ddi lam cho thdi it ddc hai hdn Cdu hdi 4: Nhin vao thdnh phan thai sau chuyen ddi xiic tdc cho thay, cdn nhifng vafn dd md cac ky sff va cac nhd khoa hpc cin cd g^ng hodn thifln bd chuydn ddi xdc tdc ii ldm gidm bdt hdn nffa lffdng thdi d$c hai Phdn tich y nghla cua bdi tdp: Van de d nhiem va xu" h fl nhilm khdi thdi xe ttong qua trinh dfl't chdy cua nhidn hpu mangtinhttidisff vd cd'pttiiethidn Bdi tdp gidp HS hidu ro hdn bipn phdp kl fliudt de gidm bdt mffc dfl dpc hai cua khdi thai ciia xe Cau hoi 1: Cdu tia Idi la dp khdng du khdng dd nhidn Ueu bi ddt chdy hoan todn Muc dich cia cau hoi nham phat huy kinh nghiem vd vdn hieu Met cua bdn than de gidifliichmdt vafn de ttong ddi sdng, cung nhff cdch thffc dien giai mdt va'n de mflt cdch khpa hpc DAY HOC H6A HOC THEO BINH HLfCJNG PHAT TRIEN NANG LUC 49 Cdu hoi 2: Ld cdu ttdc nghiem khdch quan cdu ttd Idi la dap an D Muc dich cua cdu hoi lidn quan dd'n kha nang phdn tich hinh dnh de danh gia cdc kdt ludn ve mdt ki thuat khoa hpc cdng nghe HS phai cd ki nang phdn tich danh gia thdng tin dtfdc truyen dat qua hinh anh vd chpn Itfa ddp dn tten cd sd ddnh gia khoa hpc Cdu hoi 3: Cau ttd Idi chi dtfdc mdt ttong cdc vi du vd stf chuyen ddi cdc dpc hai cac khdng dpc hai nhff: cacbon monoxit cacbon dioxit, hoac oxit nitd nitd Muc dich cua cdu hoi c i n stf phdn tich ddnh gid cua HS qua hinh anh, chpn Itfa de dtfa vi du vd dien dat cdu tta Idi mpt each khoa hpc tten cd sd phdn tich hdp li Cdu hdi 4: Cdu tta Idi chi dffdc mdt ttong nhffng han chd' md bd chuyen ddi xuc tdc can khde phuc: - Khdng phai tat ca cdc cacbon monooxit dtfdc chuyen cacbon dioxit - Khdng phai tat cd Itfdng oxit nitd deu dtfdc chuyen flianh nitd - C i n cdi thidn ty Id cacbon monooxit dtfdc chuyen cacbon dioxit vd ty le phin ttam cua cac oxit nitd dtfdc chuyen nitd - Khi cacbon dioxit thdi ndn dffdc thu lai khong thai khdng Mi^c dich cua cdu hdl HS phai hieu va phdn tich dtfdc nhffng chffng cff qua hinh dd dtfa nhffng ddnh gid va dff doan khoa hoc va hdp li ve han chd can khac phuc cfia bd phdn chuydn ddi xuc tdc Ket lu4n Day hpc hda hpc ben canh vide truydn thu kie'n thffc, hffdng ddn thai dd sdng tich ctfc, nang ddng, cd ttdch nhidm vdi gia dinh, cpng ddng va xa hdi ren luydn nhffng ky nang nham hinh thdnh va phdt tiien nang life cho HS De Idm dtfdc didu doi hdi ngtfdi gido vidn phdi cd ^ thffc Uf hpc hdi tiiay ddi phffdng phap day hpc, each kidm tta, danh gid theo dinh hffdng phat tiien ndng Iffc ffng dung kid'n thffc cho hpc sinh TAI LIEU THAM KHAO [I] Bp Gido due vd Dao tao, Chuan dau trinh dai hoc kh&i nganh sU pham dao t