HUONG DAN QUAN LI SU DUNG
PHOI HCfP THI NGHIEM VA PHIEU HOC TAP TRONG DAY HOC NHOM
PGS.TS Ld Vftn Gifio -Tru&ng Dgi hgc Suphgm -Dgi hgc Hui Vfin Thj Gfii - HVCH Vdt /j> KI9 tru&ng DHSP -Dgi hgc Hui
T
rong dgy hgc nhdm, thl - PHT phdi the hipn rd y do ngi dung trpng tam ciia bai nghipm (TN) ciing vdi vd myc dich sii dyng.philu hgc tgp (PHT) la - PHT phdi dugc trinh bdy nhiing phuomg tipn cdn thilt rd rdng, sdng siia, chiia dyng cho vipc to chiic hogt dgng hpc day dii nhiing thflng tin can
thilt.
- PHT phdi phii hgp vl m Jt thdi gian.
- PHT phdi sdt vdi tirng ngi tgp nhdm ciia hgc sinh (HS),
Qua TN HS cd the ty tim kiem vd thu nhgn kiln thirc mdi. Dl hudng dan hogt dgng hgc tgp ciia HS trong dgy hgc nhdm can phai dua ra nhirng thdng tin, nhu:ng nhipm vy, cung nhu nhung djnh hudng, chi dan vd nhu'ng ggi y giiip HS thye hipn cac nhipm vy dugc giao. Nhung thflng tin nay cd
hgc. Ngi dung phieu hgc tgp thudng Id nhOng thong tm, nhDng nhQng nhipm vy hpc tgp dugc giao cho HS (ho$c nhdm HS) thye hipn, cung vdi nhu-ng hudng dan vd nhCtng ggi y can thiet dh thye hipn nhipm vy Ngi dung PHT dung ciia bdi hgc vd tirng hogt kit hgp TN thudng la nhOng dgngcy the ciia HS
L2. Thiet ke PHT phoi hgp vdi TN trong to chirc dgy hgc nhom
Bu&c 1: Xdc dinh muc lieu.
De PHT phdt huy vai trd cua
the ddn vdi HS nhanh vd chinh nd frong dgy hgc nhom ddi kl bdi dgy hgc, GV cdn dy xdc qua PHT Do dd phoi hgp hdi GV phdi xdc djnh myc tieu kien nhirng tinh huong c6 the TN vd PHT trong dgy hgc cua bdi hgc, tir xdc djnh myc xdy ra vd each xii ly, vipc thiet nhom cd tdc dung tich cyc dich sir dyng PHT cho timg kd PHT cung cdn du doan frong tfl chiic hogt dgng hgc ngi dung cy thl cua bai hgc.
tap ciia HS. Tren ca sd dd chi ra nhitng 1. Su' dung phoi hpp TN hogt dgng vd nhitng nhipm vy va PHT trong day hpc nhdm cy the cua HS trong tirng hogt
dgng.
Bu&c 2: Xdc dinh trgng tdm kien thuc ciia bdi hoc GV nghien cim ky ngi dung bdi bgc, xdc djnh frgng tam kien thiic ciia bai hgc va chudn kien thiic, chudn ky ndng hgc sinh cdn dgt dugc sau khi hgc.
Tu dd chi ra nhung ngi dung,
nhung hoat dgng hgc tgp cy nhitng kiln thirc ciia bai hgc Sau dd dimg cac bang so lipu thl cua HS. cd the tfl chuc dgy hgc nhdm thu dugc dehudng ddn HS nit
Dy kiln nhiing khd khSn vdi sy hfl fry cua TN vd PHT.
Dong thdi xdc dinh nhiing thi nghiem se tien hdnh frong bai hgc.
Bu&c 3: Xdc dinh ngi dung PHT Ngi dung cua PHT dugc xdc djnh frdn ca sd myc tieu.
1.1. Cdc yeu cdu trong thiit ki PHT
De thiet ke dugc mgt PHT hfl trg TN can qudn tript cdc ydu cdu sau:
- Nghien cim ngi dung bdi hgc vd lya chgn TN sir dyng frong bai hgc.
Vgch ra nhiing nhipm vy,
HS cd the gap phai khi thye hipn cdc nhiem vy hgc tgp dugc giao.
- Dua ra nhitng hudng din va ggi y nhdm giam nhp khd khan cho HS.
Ngdy nhan bdi 29/8/2012, Ngay duy$I ddng 25/11/2012
3 4 • TiBiPCHfTHI^BIGIAODMC-Sd88-12/2012
hudng dan ldp rdp tiii nghipm, cac budc tien hanh, each thu thgp, xii ly so lipu vd nit ra ket luan.
Bu&c 4: Trinh bay phieu hgc tap. Cflng giflng rihu thiet
trudc nhitng khd khdn ma HS se gdp dl dua ra nhitng ho trp kjp thdi.
2. Tliiet ke PHT vdi TN d^y hpc bai '*Cam ung tir.
Dinh iu9t Ampe** (V^t li U) Trong bai "Cam img tir, djnh lugt Ampe", TN dugc sii dyng dl nit ra ^nh nghia cdm img tir. Trong dd can phai thye hipn ba thi nghipm 1,2,3 SGK vd thl hi$n ket qua bdng 3 bang (28.1; 28.2 vd 28.3).
ra djnh nghia cdm iing tu. Cy thl, TNI khao sat mfli lien hp gitta F vd I, TN2 khdo sdt moi lidn hp giOa F va 1, TN3 khdo sat moi lien he giu'a F vd sin a. Tuang iing chiing ta thiet ke 4 PHT, bao gom: PHT so I
HL/ONG DAN QUAN LI Sl/DUNG la khao sat su phy thugc ciia F
vao 1 vdi hai nam chdm khdc nhau; PHT sfl 2 khdo sat sy phy thugc cua F vao 1 vdi hai nam cham khdc nhau; PHT sfl 3 khao sdt sy phy thugc eua F vao gdc a vdi hai nam cham khdc nhau va PHT sfl 4 tong hgp cdc ket qud d PHT 1, 2,3, fren ca sd do thdo luan nhdm de dua ra kdt lugn ve quan h^
giita F vdi I, 1 vd sina. Nh§n xet ve ti so /r^r^ddi vdi mgt nam chdm vd doi vdi hai nam cham khdc nhau. Sau dd dudi sy hudng dan ciia GV dl dua ra djnh nghTa cdm iing tir.
Sau day la cdc PHT dimg trong bdi "Cam iing tir. Djnh lugt Am-pe", vat li 11 nang cao.
Luu y: GV can phdi tien hdnh cdc TN trudc nhdm thu
PtUtV llQCTAPSi
thgp dugc so li4u de lgp sin cdc bdng so lipu trong cac PHT. Sau khi cdc nhdm thao lugn vd trinh bdy xong, GV dua ra cde ddp dn ciia cdc PHT nhdm chinh xdc hda kidn thirc.
Kit lu§n
Vide sir dyng phii hgp TN vd PHT trong dgy hgc nhdm nhdm phdt huy tfli uu chiic ndng eiia moi phuang tipn,...
fXem tiep trang 37}
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(Diing trong muc 1 - 428 Cani img tu Dinh lual Am-pe-11 NC| t f ^ H f t ' '
Thinghcm ? B6 in thi nghiem nhu huih ben mL^ • - ^ ^ ^ , Gitt npyoi 1 = 120 A. va 1 = 2nn cbo dmg dien co cuong tl6 I j f f f f V ^ ^ 0,4AquacupndiycuanatDi:hani dien. diaydoigocQ Ghilaj
do Ion luc tit nrtmg ting vao bang 3 1
Bang 31 Khi ddng Min ci atdng So 9,4 A di qua cu^n day cua nam cham dien
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Tu cac bang so lieu 0 PHT 1, PHT 2 va PHT 3 hay lia Im cac cau hoi sau 1 Cacthuoagso - , - v a —ttongmoibangcogiairinhuihenaa'' 2 Mra (]ujn lit giirn F \v\ 1, F vcn 1 va giua F \m sino' 3 Bien Ihue tli<; hi^n ijuan \K giQa F v6i cac dai luong 1,1, mu
4 Kill Ihay doi nam cham dang dung (liiay doi cuimg do dong dien qua cuon da> ciia nam chaml cac thuong so - , - va —thay doi khong?
5 Lfng viji mot tu liuong ihi li so co ihay doi khong'' Va ung voi hai tii Inioiig khac nhau thi li so — co Ihay doi khong''
TAP CHI THIET BI GIAO DUC-so 88-12/2012 • 3 5
HU'ONG DAN QUAN LI SU DUNG chdt khi vdi hiAx) (RHg_ ) gjam
ddn tir 4 xu&ig 1. Tinh axit ciia cdc oxit (RjO^ vd hidroxit [R(OH) J tar^ ddn. Tinh baza cua cdc oxit (RjO^ va hidroxit [R(OH) J gidm ddn (Xau sa dfl).
b. Hien thi cdc thong tin - Nhdm lA, IIA, He: Khfli eac nguyfin to s.
- Nhdm IIIA^ VIIIA:
Khoi cdc nguyfin tfl p.
- Nhdm IB-* VIIIB: Khfli cdc nguyen tfl d.
(Trir Hp Lantan & hg Actini Id khfli cdc nguyfin tfl f).
c/. Nhirng Tien bg so v&i ky thudt da biet tru&c do
+ Dudi anh sang ciia Thuyet cdu tgo nguyen tit bfl sung va Idm sang td minh bgeh han cac nfli dung cua Dinh luat tuan hoan: Cdu tgo vd nguyfin tir va cdc yfiu td: F, R, I, x ciia nguyfin tir cac nguyfin tfl; Tinh chat cua cdc nguyfin tfl; Tinh chat cua cdc dan chat; Tinh chat cua cac hgp ehdt; Thanh phan cdc hgp chat tgo nen tir cac nguyen tfl dd; Dfiu bien doi tudn hoan theo chieu tdng
ddn ciia dipn tich hgt nhdn nguyfin tir.
+ Gido vien de ddng truyen thy kien thiic, hlnh thdnh cdc kifin thiic can dgt dugc ve tinh chat cua cdc nguyen td, tinh chat cua cdc dan chat, tinh chat eua cdc hgp chdt, thdnh phdn cdc hgp chat, dfi ddng so sdnh tinh chit ciia chiing vdi nhau. Gido vien de trinh bdy bai giang, giiip cho thay cd thugn lgi khi dgy (khflng hi sai sdt), tiet kiem dugc thdi gian khi gidng. Hgc sinh de tiep thu va van dung kifin thirc, hgc it ma hieu nhieu.
+ Hpc sinh ty nghien eiiu, suy ludn, dy doan tinh chat cua cdc nguyen tfl, tinh chat cua cac dan chat, tinh chat ciia cac hgp chat, thdnh phan cac hgp chat. De dang chu dgng so sanh tinh chdt ciia chung vdi nhau.
+Dfi dgy, dfi hgc, de vgn dyng.
3. Ket luan
Vdi nhirng uu difim trfin.
Cam nang su dyng Bdng tudn hoan cdc nguyen td hda hge
cd thfi giiip eho gido vien, sinh vien, hgc sinh pho thflng va nhdt Id nhiing nhd nghien ciiu gidi quyet dugc nhiing khd khdn g^p phdi trong dgy hgc vd nghien cim.
Tdi lipu tham l(hdo 1. Bg sdch gido khoa Hoa hgc THPT NXBGD. 2010.
2. Hp thong tuan hodn cdc nguyen to hda hgc do NXBGD Vipt Nam an hdnh.
Summary This article raises a nmnber of difficulties when students use the periodic table of chemical elements in the current high school textbooks while at the same time introducing and analysing the creativity and advantages of the periodic table of chemical elements Handbook proposed by the author that was published by the publisher pedagogical University m Ho Chi Minh City.
- « « ^
PHOI H d P THI NGHIEM V A PHIEU HOC T A P . . .
(Tiep trang 35) day hgc vgt li & tru&ng pho
...tgo difiu kifin cho HS tich cyc, chu dgng tham gia vdo hgat ddng hgc tgp, qua do gdp phdn nang cao hipu qua dgy hgc vat Iy d trudng pho thong.
Tai Iifu tham khdo 1. Nguyfin Thfi Khfli (tflng chu bien), Vgt li ldp 11. NXB Giao dye, 2010.
2. Le Van Gido, Thi nghiem vd phuang tien true quan trong
thong. NXB Gido dye, 2005.
Summary In interactive group teachmg, experiments together with handouts are necessary means of organizing group activities.
When conducting experiments, self-reliance is required as the groups of students have to work independently. Thus, the students often encounter
quite a few difficulties. To reduce the difficulties and aid the students with their leaming tasks, the teachers need to give essential duections, suggestions and guidance through the handouts. Therefore, combmmg experiments with handouts is a vital choice, which is proved by the lesson "Induction. Ampere 's law " in Physics 11.
TAP CHI THIETBIGIAODIK:-50 88-12/2012 • 3 7
