Tap chi khoa hgc Trffdng Dgi hgc Quy Nhcfn So 1, Tap VI ndm 2012 KIEIVL TRA, DANH GIA KET QUA HQC TAP CUA SINH VIEN BANG PHlJOfNG PHAP CHAM TRAC NGHIEIVI KHACH QUAN TVJDQNG NGUYEN LEHA^ I M6DAU Cong t[.]
Trang 1Tap chi khoa hgc Trffdng Dgi hgc Quy Nhcfn So 1, Tap VI ndm 2012
KIEIVL TRA, DANH GIA KET QUA HQC TAP CUA SINH VIEN BANG PHlJOfNG PHAP CHAM TRAC NGHIEIVI KHACH QUAN T V J D Q N G
NGUYEN LEHA^
I M 6 D A U Cong tac kiem tra, danh gia ket qua hoc tap (KT, DG KQHT) etja sinh vien la mot phan khong the thieu trong qua trinh dao tao, va co y nghia vo cCing quan trong do'i vdti sinh vien, giang vien, can bo quan ly giao due, nha trffdng Hoat dong KT, DG KQHT giup cho giang vien danh gia dffdc ke't qua hoc tap cua sinh vien mot each khach quan, nhanh chong, chinh xae, qua do cac nha quan ly giao due nam bat dffdc thffc trang viec giang day va hoc tap trong nha trffdng, tff do co nhffng bien phap kip thdi dieu ehinh de boat dong giang day va hpc tap dat ke't qua
Viec danh gia khach quan KQHT se gop phan nang cao hieu qua day-hoc, dong thdi la dong Iffc thuc day phat trien tinh tich cffe hoc tap cua sinh vien Kiem tra, danh gia la cd sd de danh gia trinh do nhan thffc ciia sinh vien so vdi muc tieu dao tao, neu thffc hien tot boat dong KTDG mot each khach quan, nhanh chong, chinh xac la yeu to tao nen chat Iffdng dao tao, gop phan quyet dinh sff ton tai va phat trien cua nha trffdng The ky XXI, mot ky nguyen ciia sff toan cau hoa, kinh te'tri thffc, cong nghe cao, dac biet la linh vffe dien tijT, cong nghe thong tin, Chinh vi the, giao due va dao tao dffdc coi la mot ye'u to' quan trong thiic day sff nghiep CNH-HDH da't nffdc, dffa dat nffdc bat kip toe do, xu hffdng phat trien trong ky nguyen mdi cua the' gidi
Hien nay, cong tac KT, DG KQHT dffdc ap dung bang nhieu hinh thffc khac
nhau nhff: tff luan, van dap, trac nghiem khach quan, Trong do, hinh thffc kiem tra
ti-ac nghiem khach quan tuy chi mdi xuat hien d Viet Nam trong nhffng nam gan day, nhffng da dem lai mot so hieu qua nhat dinh, vdi nhffng ly do sau:
Trac nghiem khach quan vdi thdi gian kiem tra ngan, cd kha nang kiem tra kien thffc nhieu hdn va d dien rong, hinh thffc lam bai ddn gian
d hinh thffc kiem tra viet, mac du c6 dap an, thang diem nhffng van co sff
danh gia chenh lech giffa cac giang vien cham vdi nhau ffinh thffc trac nghiem khach quan se loai bo ye'u to^ nay
- Cham trac nghiem khach quan tff dong dffdc thffc hien nhanh chdng, dffa ra ket qua danh gia chinh xac, khong cd do chenh lech diem giffa hai ngffdi cham trong cung mot bai lam
Trang 2Dc xay dffng mot he thd'ng chain thi triic nghicm khach quan tff dong doi hoi tinh ky tbuiil cao, quy trinh nghiem ngat ngay Iff dau, dong thdi ngffdi suf dung he thong nay phai dffdc tap huan Vi vay hipn nay phffdng phap nay van chffa dffdc suf dung rpng rai
LL PMn tich giai phap
Hien nay eo hai hinb thffe thi trac nghiem pho bien dang dffdc ap dung:
* Hinh thirc kiem tra trdc nghii'in tren niuy tinh
Sinh vien nhiip thong tin de dSng nhap vao be tho'ng (hp va ten, so bao danh ), sau do tien hanh liim b^i tren may tinh Phan mem thi trac nghiem se tinh thdi gian
va cho ket qua diem ngay, dong thdi cap nhat diem vao cd sd dff lieu, in ra ket qua danh gia
* Hhdi thffc kli'in tra trdc nghiem tren gluy
Sinh vien lam bai tren giay, sau dd rpc phdch, giao vien cham bai va cho diem nbff kiem tra vie't, trong dieu kien thffc te hien nay gido vien thffdng suf dung bia due
lo lam dap an de cham bai thi
Hinh thffc kiem tra trac nghiem tren mdy tinh se cd lAi va nhffdc diem, cu the:
tfu diem: Cd sd dff lieu de va dip an da dffdc Iffli trff ben trong may tinh,
chffdng trinh se tff dpng xuT ly thong tin, dff lieu trong sud't qua trinh lam bai thi cua sinh vien, sinh vien se nhan dffdc ket qua ngay sau khi lam bai, diem thi dffdc cap nhat vao cd sd dff lieu, ca qua trinh nay dffdc thiet ke va lap trinh de xuf ly iff dpng theo quy trinh chuan hda ngay tff dau, do dd se tranh dffdc sai sot
- Nhifgfc diem: Khi trien khai thffc hien can ed cd sd ha tang thiet bi dam bao, trang bi so' Iffdng may tinh nhieu (01 sinh vien/may), cd the phat sinh van de ve sff co may tinh, sff cd' ve dien Mat khac viec kiem tra tren may tinh cung ciin phai cd cong tac tap huan va chuan bi ky cho ca sinh vien va can bp coi thi Hinh thffc nay thffdng ap diing
kbi da du cac dieu kien trang thiet bi, eae ky thi cd so Iffdng sinh vien vHa phai
Hinh thffc kiem tra tr^c nghiem tren giay se tranh dffdc nhffng ban che ciia hlnh thffc kiem tra trac nghiem tren may tinh Tuy nhien neu diing cac each cham thi tr^c nghiem tren giay b^ng phffdng phap cham thii cong neu tiren thi van gap nhffng ban che nhff thi vie't Dd la thdi gian cham bai lau, tinh chinh xac khong cao, de phat sinh sai sdt trong khau xuf ly nhap diem va liTu trff diem, vdi so' cau hoi trong bai thi nhieu giao vien cham rat khd khan
1.2 Liia chpn giai phap
Tff nhffng phan tich tren, chiing toi nhan thay cd the ket hdp ca hai phffdng phap tren, nghia la cho kiem tra tren gia'y va thie't ke' he thdng may cham thi trac nghiem
Trang 3KIEM TRA, DANH GIA KET QUA HOC TAP CUA SINH VIEN 137
ma ke't qua cd the tff ddng chuyen vao cd sd dff lieu va xuat ra ke't qua cua tffng sinh vien trong thdi gian ngan nha't Bai toan tren da dffdc giai quye't mpt each hieu qua nha't theo npi dung dffdi day
2 NOI DUNG
2.1 H$ thd'ng chSfm thi trac nghicm khach quan ti/ dpng
2.1.1 Md hinh / i | tho^ng chdm thi trac nghicm sff dung tren mdy tinh
Dau vao
Danh sach sinh \ iC-n
Hp va ten
So bao danh
Cau hoi, dap an
Bai thi trac nghiem
Phun mC-m xir ly liim bai \ ;i cham trac ni'hicm
Ml; r i K ) \ ( ; c i i \ M
IKAC N C I I I I M
fr ^
MA^ KIEM T R \ TRAC NGHIEM
Dau ra
Ket qua kiem tra ciia sinh vien
Hinh 1 Mo hinh he thdng chdm thi trac nghiem tren mdy tinh
Hogt dgng cua hi thdng chdm thi trac nghiem khdch quan trin mdy tinh gdm mgt sdbudc chinh dugc mo td nhff sau:
+ Dau vao cua he tho'ng:
Tao ngan hang cau hdi va dap an cho cau hdi Iffu vao cd sd dff Ueu cua he tiid'ng
Tao mlu cho bai thi trac nghiem, sinh vien se thi trffc tie'p tren mau dffdc tao
ra tff he thd'ng nay
Danh sach sinh vien, hp va ten, so' bao danh sinh vien dff thi dffdc nhap vao may tinh thdng qua phan mem "trac nghiem"
Bai thi trac nghiem dffdc he thd'ng may cham thi trac nghiem xuf ly
-I- Dau ra cua he thd'ng gom:
Dau ra cua he thd'ng kiem tra trac nghiem la ke't qua cham bai dffdc hien thi tren may tinh, in ra va Iffu trff trong cd sd dff Ueu ket qua
Trang 42.1.2 Mdy chdm trdc nghicm khdch quan tU dgng
MICRO CONTROLLKR
80C51
< ^ — - J
SIKI'MOTOR DRIVER ;
SKNSOR
/////// 2 Mdy chdm ndt nghiem tu dgn^
- Kiwi diiu khien (MICRO CONTROLLER)
Suf dung \i dieu khien SOC.SI cua Almcl Vi dieu khien dieu khien boat dpng
eiia may nhan lenb tff \\\ keo giay (STEP MOTOR DRI\ ER), va dpc bai tbi truyen
sang PC
Khdi cdm bli'n (SENSOR)
+ Cam bien giS'y: Suf dung cam bien quang loai xuyen thau de nhan biet cd bai
tbi d khay giay
-I- Cam bien dpc bai thi: Nhiem vu cua khd'i cam bien nay la dpc bai thi, phan
biet nhffng d cd td kin va khdng td
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Dd'i vdi cam bien nay ngffdi ta suf dung cam bien hong ngoai loai phan chieu Cam bien quang loai nay dffa tren tinh chat phan xa hay ha'p thu anh sang ciia vat the Tiiy theo mffc dp phan xa cua vat the ma chiim tia phan xa cd the manh hay ye'u dffdc tinh theo ty le phan tram
Trang 5KIEM TRA, DANH GIA KET QUA HOC TAP CUA SINH VIEN 139
Cffdng dp phan xa cua tia hong ngoai tren cac gam mau nbff sau:
Gam mau Trang tieu chuan (Testcard standard white) Xam tieu chuan (Testcard standard grey)
Phdn xa 90%
18%
Giav thi
Phat
t k C' 1 'i V t 111
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Cam bien phan clueu
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Hinh 4 He thdng cdm bien (SENSOR)
2.1.3 Phdn mem tren mdy tinh (PC)
Phan mem chay tren PC la phan mem giao tie'p vdi ngffdi suf dung, thifc hien cac nhiem vu sau:
- Cho phep ngffdi diing nhap dff Ueu danh sach sinh vien gom hp ten, ma sinh vien va Iffu trff vao PC
- Cho phep ngffdi quan ly nhap ngan hang cau hdi, dap an cua bai tiii va Iffu trff vao PC
- Giao tie'p vdi may cha'm thi trac nghiem de truyen lenh cham sang may, nhan ke't qua cha'm thi tir may va tinh toan de cho ra diem so' cho tffng bai thi
Lffu trff diem, hien thi, in ra ke't qua thi cua sinh vien
2.1.4 Cdc yeu cau khi thytc hi$n ldm kiem tra trdc nghicm
De cd the cha'm bai thi bang he thd'ng cha'm thi trac nghiem tif ddng, he thd'ng doi hoi tuan thu nhiing yeu cau sau:
- De thi trac nghiem chi chiJa phan trac nghiem, khdng cd them bat ky cau hdi vie't nao
- Giay lam bai thi trac nghiem phai dam bao dp day, cffng va dffdc thiet ke theo mlu, in ra vdi sff gid'ng nhau, dp chinh xac cao d ciing mpt bieu mau
Bai thi trac nghiem phai lam tren mau giay da dffdc thie't ke theo quy chuan
Trang 6tuan thu nhffng yeu eau ciia hp thd'ng
Mail glux thi trdc nghiem;
Mau giay lam bai tbi Irac nghiem gom ed 3 phan:
Phan nhan dang bang: Hai hang dpc eac hinh trdn td kin dffdc in si'n n^m d hai bien chinh lii phiin nhan dang bang Phan niiy giup cho may nhan biet chinh xac hang ngang de dpc ke't qua bai lam
- Phan so bao danh: Gom 4 hang tren ciing tffdng ffng vdi 4 chff so'cua ma so'bao danh So bao danh dffdc danh bang 4 chff so vdi Iffdng td'i da 10000 sinh vien trong nhdm
Phan biii lam: cd bai hang dpc cac hinb Iron dffdc ld kin dffdc in sSn d hai bien ehinb lii phan nhan dang bang cho tffng phffdng an tra ldi cua moi cau bdi, khi lam bai sinh vien se td kin vdng trdn pbii hdp cau tra ldi
Nhan dang hang vc thong tin sinh vien
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Hinh 5 Cdc vCing thdng tin tren gidx thi
Kit qud nhdn dgng cdc 6 dugc to d phdn sd bdo danh vd bdi ldm:
- So' bao danh v^ phan bai lam cua bang tren sau khi dffdc dffa qua he thd'ng quel
nhan dang dffdc bieu dien nhff cac ma tran ben dffdi
Trang 7KIEM TRA, DANH GIA KET QUA HOC TAP CUA SINH VIEN Mj
o i o o o O O O O O
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Hinh 6 Nhdn dgng cdc d tren bdi ldm
Nhffng d dffdc ghi bang sd' 1 la phan dffdc td kin d vung so' bao danh va bai lam
3 KET LUAN Hinh thffc kiem tra, danh gia ke't qua bpc tap bang phffdng phap trac nghiem
khach quan tff dpng da giai quye't dffdc cd ban trong viec kiem tra khd'i Iffdng kie'n
thffc d dien rpng, cha'm thi trac nghiem vdi so' Iffdng sinh vien nhieu He thd'ng dffdc
van dung td't se cho ke't qua cha'm thi nhanh bdn va loai bd hoan toan cac ban cbe cua
phffdng phap cham thi trac nghiem truyen thd'ng, vi vay can phai tich cffe trien khai
dau tff nghien cffu xay dffng, phat trien he thd'ng ffng dung nay de gdp phan tich cffe
trong viec nang cao hieu qua dao tao
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TAI LIEU THAM KHAO
Tran Kiem, Khoa hgc td chffc vd qudn Ix trong gido due, Nxb DHSP, (2010)
Dffdng Thieu Tong, Trac nghiem vd do ludng thdnh qud hgc tap, Nxb Khoa hoc xa
hoi, (2005)
Lam Quang Thiep, Trdc nghiem vd ffng dung, Nxb Khoa hoc \a Ky thuat, (2008)
Ngo Dien Tap, Do ludng & dieu khien bang mdy tinh, Nxb KHKT, (1999)
Ngo Dien Tap, Kx thugt ghep ndi mdy tinh, Nxb Khoa hoc ky thuat, (2000)
D6 Xuan Tien, Ky thugt Vi xff ly vd lap trinh Assembly cho he vi xff Ix Nxb Khoa
hoc ky thuat, (2001)
DffOng Minh Tri, Linh kien quang dien tff, Nxb Khoa hoc ky thuat, (1998)
Duong Minh Tri, So do chdn linh kien dien tff, Nxb Khoa hoc ky thuat, (1998)
"The 8051 Microcontroller", I.Scott Mackenzie
Trang 8S U M M A R Y
i l S r i N C AND I'VALUATINC STUDENTS' STUDY RESULTS
BY AUTOMATK^ OIUIX riVE 1 l.STS
Nguyen Le Ha
Testing and cxakiating study results play an important role in the teaching process
TIK'\' determine the trainni.L' quality, cxisknte and development of a school Automatic obJeeliNe tesis have been \\ itiely applied in many educational organizations all over the world, and they ha\e sliown L'ood results Automatic objeetive tests cheek the vast volume
of know ledge and a large number of students The marking process is automatic, rapid and highly accurate The data are automalieally stored in computers, which is easy in printing and processing icsults and helps avoid errors in data entry stage compared with traditional wav of markini!
"Hdc \icn li<p cao hoc Quan ly giao due K.12, Tru'cJng Dai hoc Quy Nhdn
Ngay nhan bai: 15/4/201 1; Ngay nhan clang: 22/9/201 1