HAY DUNG Vil SUf DUNG THI NGHIEM TUUNG TAG TREN MAN HlNH NGHIEN CUU CHUYEN OONG TOON OEO VA TOON OIEN D 0 1 OtU
PGS. TS. PHAM X U A N Q U ^ ' - ThS. NGUYEN THI THU H^*'
1. Viee nghien edu ehuye'n ddng trdn deu va trdn bien ddi deu tren nhung thi nghiem (TN) that lgi cac tardng THPT dexac djnh tog dp vat lai ldng Ihdi diem khac nhau (tddd linh loan cae dgi luang khae) la khdng kha thi vi rat khd che tgo them bp phgn mdi hay s u dung nhung bd phan hien cd trong bp thiet bj day hpe Vat li de dap ung yeu cau TN ve npi dung chuyen dpng trdn, Vi vay, chung ldi da nghien cuu xay dung va su dung Ihi nghidm luong tac tren man hinh (TNTTTMH) de giai quyet van de nay,
2. Xay dung va s u d u n g TNTTTMH de nghien cuu ve chuyen dpng trdn deu va trdn bien ddl deu Khai Ihac uu diem cua TNTTTMH la cd the de dang va nhanh chdng xac djnh toa dp eua vat theo Ihdigiantrong chuyen dpng bat ki, Chung tdi danghien cdu TNTTTMH tren ca sd lap trinh Flash. Vdi TNTTTNH nay, ngudi hpc cd the:
• Quan sal duac vat chuyen dpng Iron, b^ng nut Play Video ve qua trinh chuyen dpng that eua vat theo Ihdi gian thuc {xem hinh 1).
• Trinh bay so lieu S ,t va cp,t dudi dang bang bieu {xem hinh 3):
Hinh 3. Cac so lieu S. t va rp, t duac irinh bay dudi dang bang bieu
• Trinh bay sd lieu S,t va (p,l dudi dang dd thj (DT) (xem hinh 4a; 4b):
Hinh 4a. Cacsdli$u va DT S.tva<p,lcua chuyen dgng tron deu
Hinh 1. Ouan sat vat ehuye'n dong tron
• Thu thap cae thong tin ve ddi tuang nghien cdu {xem hinh 2): + Xac djnh log do cua vgl theo thdi gian; + Xac djnh dang quy dao chuyen dpng, ban kinh quy dao cua chuyen dpng; + Thu thap sd lieu ve goc quel cpva cung S ma vat chuyen dpng dupc theo thdi gian I.
Hinh 4b. Cac sdli$u vaOTS.tva ip,lci}a chuyen dong fiw?
bmh dot di'u
• Phan tich, xu li so lieu theo cac muc dich khac nhau: tinh toan va ve DT (v,t), (to,t), (a.t),... Sau do kiem tra gia thuyet ve dang ehuyen dpng eua vgt,...
b l n g each dungOT ham ehuan de fit vdlOT tfiuc viS chuyen ddng tnan deu {xem hinh 5a; 5b; 5c; 5dj va vdi chuyen dpng trdn bien dd'i deu (xem hinh 6a;6b;
6c; 6d: 6e; 6g):
+ Vdi chuyen dpng tnin deu
+ V(S chuyen dpng trdn bien dd'i deu (trdn nhanh d i n deu)
Hinh 2. Thong tin vedoi tuang nghien cdu
I Tgp chl Gido due so 315
* Tnieng Bpi hQc stf ph^ro Ha Npi
** TnTdBg Dai IIQC sir pham - DH Thai Nguyen
-(kil-8/2013)
Hinh 5a. DT van tdc dai theo thdi gian (v.t) Hint) 68. DT van tdc dai tlieo thai gian (v,t)
Hinh 5b. DT van toe goc thai gian (a,!) Hinh 6b. DTvan toe goc tha gian (co.l)
LL, L L L L.
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HinhSc. DTgia toe tiep tuyen Iheo thdigian (a^J)Hinh 6c. DT gia tdc tiep tuyen theo thaigiai
Hinh 6(1. DTgia tdc phap tuyen theo thdi gia i(a,t)
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(ki 1-812013)-
^ ^ ' i r NhiIV9y,V(}isuh6tracua TNTTTMH,ngi/dihoc I " 'sa»^ cothedifavaonhifngDTvedLrocdedi/aranhOng
du doan khoa hoc va dung BT ham chuan fit vaiBT tuyin Iheo Ihctgian (a,l) (f,,,^ j j - ^^^g^ ,,.3 ^^^ j ^ j ^ ^ „ jgjj ,f,^y|-, ^^^,3 ,,„(,)
Tap chi Gido due so 315 41
Tki ll^u t h a m kh&o
1. Phpm Xuan Quif. C"ng d y n g c6ng nghfi thAng tin trong td chih: h o a t d $ n g n h ^ n thiic v^t h' lich c i ^ , tu c h a v4 sdng t^o. NXB D^i hgc suphgm, H. 2007.
2. Nguyfin DITC Thflm (chfl bien) - Nguyfin Ngpc Hung - Ph^m Xuan Qutf. P h w m g p h d p daiy hpc V$t If it t r u i n g phd th6ng. NXB Dgi hgc suphgm, H. 2004.
SUMMARY
Interaction experiment on the computer screen is type of experiment which allows students to Inter- act with study subjects on a computer screen. Dur- ing the teaching process, teachers can coordinate the Interaction experiment on the computer screen with traditional experiments to meet the leamingob- Jectlves In addition, thanks to the interaction ex- periment on the computer screen, either students can do their lessons' review or consolidation at home or they can examine and assess their knowledge themselves. Students can also prepare the lessons before the real experiment, review the lessons be- fore tests... and the time spent on practicing in the lab will also be reduced. And one of the Interaction experiment on the computer screen that we have developed and used in teaching physics Is the Inter- action experiment on the computer screen for circu- lar motion.
Hinh 6g. DTgia ldc goc theo thdigian (y. I) da de xuat hay kiem lra cac he qua rut ra Id cae gia thuyet khoa hpc. Cae sdiieu TN ma ngudi hpe thu thap va ketqua xu II sdiieu se duac xuat ra man hinh d e H S v a G V cdthe kiem lra, danh gia.
3. TNTTTMH duae ung dung nh^m h d t r a G V va HS trong quatrinh day va hpc kien thuc ve ehuyen dpng Iron deu (chuang trinh Vai li 10) va chuyen dpng Iron bien ddl deu (ehuong trinh Vgt I110 cho tnrdng ehuyen, Idp chpn) theo phuang phap nghien cdu, giai quyet van de. Tuy vao muc dich su'dyng TN khac nhau (ed the la TN nghien cijfu khao sat hien tutjnghay TN kiem chdng), QV c6\he sddung TNTTTM H tren phdi hpp vdi cae TN dgy hpc Iruyen thdng (neu cd) de dap dng dupe mue lieu day hpe da de ra, Ngoai ra, vdi TNTTTMH, hpc sinh cd the s d d u n g d e d n tap, cung ed kien thdc d n h a sau khi da hpe tren Idp; tu kiem kiem tra, danh gia kien thdc;
chuan bj bai trudc khi tht/c hanh TN that, tu on tgp trudc khi thi... va giam bdt thdi gian thuc hanh tai phdng TN. Q
42 Tqp chi Gido due so 315
Quy trinh xay d p g bai hoc...
(Tiep theo trang 60}
hoc nhanh chdng ma trong pham vi mpt bai hpe, tiet hpe khdng the ehuyen tai het duoe.Q
Tki li£u t h a m k h a o
1. Nguyfin Thanh D?t. Sinh h o c 12. NXB CiHo due Vi^l Nam, H.20\0.
2. Nguyfin Phuc Chinh - Ph^m Thj Hflng Tu. "Sii dyng phSn mfim CmapTool lap b&n d6 khai ni$m". Tgp chi Gido dftc, sd 218, 712009.
3. J. D Novak - A. j . Canxas. The theory Underlying Concept Maps a n d How to Construct Them. Florida Institute for Human and Machine Cognition. 2008.
SUMMARY
The process of compile an online lesson has to follows stages in which each stage should utilize the Interaction between tfie learners and the computers, which creates good condition for teachers to change their teaching method of active ^ce to face teaching.
At tbe same time, it helps students study themselves and gains their knowledge through online lesson.
Though which it helps develop critical thinking ^dll.
self - study skill for life - time study.
