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THIET KE BAI SOAN MON TOAN TRUNG HOC GOi S6

THEO DINH HirOlNG DOI MOll PHUOnG PHAP DAV HOG

O ThS. LLTONG VA N CAU*

1. Bdi soqn duqc hieu Id ke hoqch dqy hqc

h/ng het (trudng hqp ddc biet Id tung cym tiet)

cuo gido vien (GV). Nd the hien sinh ddng md'i

lien he huu eo giua myc tieu, ndi dung, phuong

phdp vd dilu kien dqy hqc. De ddi mdi phuong

phdp dqy hqc (PPDH), trudc hit GV cdn thyc hien

ddi mdi phuong phdp ngay trong viee thiet ke

bdi soqn. Thyc tien dqy hqc todn d cdc trudng

trung hqc co sd (THCS) hien nay cho thdy, mdt so

GV cdn gdp khd khdn trong khdu thiet ke bdi

soqn theo tinh thdn ddi mdi. Bdi viet gdp them y

kien ve vdn de thiet ke bdi soqn mdn Todn THCS

theo djnh hudng ddi mdi PPDH.

2. Nhung yeu cdu ddi vdi mot bdi soqn

Theo Nguyen Bd Kim (1), bdi soqn khdng chi

boo gdm phdn xde djnh myc heu, ndi dung, PPDH,

md edn phdi quon tdm den cdch td chue hoqt

dqng cuo GV vd HS. De xdy dyng mdt bdi soqn,

GV cdn ndm vung myc tieu vd ndi dung dqy hqc,

chudn kien thuc, kT ndng quy djnh trong chuong

trinh vd duqc cy the hod trong SGK, vdn dyng

vdo dilu kien, hodn cdnh cy the cua tung Idp

hoc. Theo hnh thdn ddi mdi bdi soqn, edn ddm

bdo cde yeu cdu sau: - Bdi soqn phdi Idm rd

duqc myc tieu. Chu y rdng myc tieu dqy hqc Id

myc heu d l ro cho HS, GV phdi hinh dung sou

khi hqc xong bdi, HS cd duqc nhung kien thue, kT

ndng, thdi do gi, phdi d muc nhu the ndo? Sou

khi dd neu ede myc heu cy the, bdi soqn edn ehi

rd ddu Id trqng tdm cuo bdi; - Bdi soqn phdi bao

qudt duqc tdng the cdc PPDH v l nhilu phuong

dien khdc nhau, tqo dilu kien vdn dyng phdi hqp

cdc PPDH. Bdi soqn phdi Idm ndi bdt duqc hoqt

dqng hoc cua HS vd cdn ehi ro nhung hoqt ddng

dd tuong thich vdi ndi dung vd myc tieu bdi hqc.

3. Cdu true cua bdi soqn

Theo ehung tdi, cdu hue bdi soqn gdm 5 myc

sou: I) Ten bdi hoc; 2) Myc fieu/ trqng fdm, PPDH

chu yeu/phuong fien dqy hqc (PTDH); 3) Kiem tra

bdi cu (trinh do xudt phdf)/ggi vd'n de; 4) Bdi mdi;

5) Ddnh gid ket qud hqc tdp/hudng ddn hqc d nhd.

Tap chi Giao due s6 23 9 (ki i • 6/201 o)

Trong 3 myc cudi cdn ghi rd thdi luqng dy

kien. Chung tdi quan tdm hon v l 3 myc eudi trong

cdu true neu tren: Kiem tra bdi cu nhdm myc dieh

ddnh gid trinh do xudt phdt eua HS (khdng don

gidn chi Id kiem tro muc do thude bdi, ket qud

Idm bdi tdp d nhd cuo HS md ddi khi hj ndi dung

kien thue cu se gqi md ro vdn d l eua bdi mdi).

Myc bdi mdi duqc chio nhd theo cdc tieu myc

cuo bdi, gdm 2 hoqt ddng chinh: hoqt ddng cua

GV vd hoqt ddng cuo HS. Mdi hoqt ddng ed the

md ngoqc ghi rd myc tieu hoqt ddng. Hoqt ddng

eua GV cd the gqi ddng co hudng dich cho cdc

hoqt dqng cuo HS. Cde hoqt dqng cung ed li thuyet

eung thudc ndi dung bdi mdi.

Viee ddnh gid ket qud hoc tdp ed the thdng

quo kiem tro trong thdi gion ngdn (ty ludn hodc

trde nghiem khdeh quon, hodc thi duo gidi todn

giua cdc nhdm...).

4. Vi dy ve bdi soqn

Tiet 27: Phdn fich mdt sd ra thua sd nguyen

to, mdn Todn Ldp 6.

/. Myc fieu: - Kien thuc: Ndm duqc the ndo Id

phdn tich mdt so ra thua sd nguyen to; - KT ndng:

-I- Biet cdch phdn tich mdt so ra thua so nguyen td

trong ede trudng hqp md sy phdn tich khdng qud

phue tqp, biet dung luy thua de viet gqn dqng

phdn tich; -i- Biet vdn dyng cde ddu hieu chio het

dd hqc de phdn tich mdt so ro thua sd nguyen td

vd vdn dyng mdt cdch linh hoqt; - Thdi do: Soy

me hoc tdp, biet vdn dyng linh hoqt khi phan tich

mdt so ro thua sd nguyen td.

Trqng tdm: Su dyng cdc ddu hieu chio hit de

phdn tich mot hqp so ra thua sd nguyen to (ehu

yeu xet cde trudng hqp don gidn, dya vdo bdng

cdc sd nguyen to nhd hon 100).

//. PPDH: Ddm thoqi, phdt hien vdn de.

PTDH: Mdy chieu do ndng, mdy vi tinh, phieu

hqc tdp.

///. Ndi dung vd fien tnnh fief dqy:

* Sd Giao due - Dao tao Hai Dirong