MC LCCHNG 1: TNG QUAN NG DNG CNTT TRONG DY HC HA HC ......... 4 1.1. Tng quan ng dng CNTT trong dy hc Ha hc ..................................................... 4 1.1.1.Qa trnh dy v hc........................................................................................................................ 4 1.1.2. Cng ngh thng tin vi dy, hc v nh gi.............................................................................. 4 1.2. Nhng u im v hn ch ca vic ng dng CNTT trong ging dy ha hc v mt s xut ........................................................................................................................... 4 1.2.1. u im ........................................................................................................................................... 4 1.2.2. Nhc im..................................................................................................................................... 4 1.2.3. Mt s xut................................................................................................................................. 4 1.3. Khai thc v s dng Internet .......................................................................................... 4 1.3.1. Gii thiu chung v Internet........................................................................................................... 4 1.3.2. Khai thc v s dng Internet ........................................................................................................ 5 1.3.3. Th in t (Email) ........................................................................................................................ 5 1.4. Mt s phn mm ng dng h tr trong ging dy ha hc ....................................... 5 1.4.1. Phn mm Microsoft Word ........................................................................................................... 5 1.4.2. Phn mm PowerPoint ................................................................................................................... 5 1.4.3. Phn mm CROCODILE-Chemistry ....................................................................................... 5 1.4.4. Phn mm VIOLET ................................................................................................................... 5 1.4.5. Phn mm Chemoffice................................................................................................................... 5 1.4.6. Chemstech ....................................................................................................................................... 5 CHNG 2: CNG C DY HC HO HC ............................................................... 6 2.1. Cc cng c phc v son tho bi ging ha hc.......................................................... 6 2.1.1. Chng trnh Microsoft Word ....................................................................................................... 6 2.1.2. Adobe acrobat v acrobat reader ................................................................................................... 7 2.1.3. Phn mm vit cng thc ho hc................................................................................................. 7 2.2. Phng tin trnh din: Microsoft powerpoint ............................................................... 7 2.2.1. Trnh din trong ging dy ho hc ............................................................................................... 7 2.2.2. Microsoft powerpoint ..................................................................................................................... 7 2.3. My chiu d liu (Data prorector) ................................................................................. 8 2.3.1. phn gii .................................................................................................................................... 8 2.3.2. Cng ngh LCD v DLP................................................................................................................ 8 2.3.3. S dng my chiu ......................................................................................................................... 8 CHNG 3: TH NGHIM HO HC M PHNG ....................................................... 9 A. Thit k th nghim ho hc o bng Microsoft PowerPoint .......................................... 9 1

3.1. Thit k m hnh th nghim............................................................................................. 9 3.1.1.Thit k dng c th nghim t ChemDraw Ultra 8.0................................................................... 9 3.1.2. Thit k dng c th nghim t Chemwindow ............................................................................. 9 3.1.3. Thit k m hnh th nghim bng chng trnh ng dng Sience Teachers Helper ............... 9 3.1.4. Thit k mt s m hnh th nghim bng AutoShapes trong Microsofr Word........................ 9 3.2. Cc hiu ng thng dng trong powerpoint thit k th nghim ............................... 9 3.2.1. Hiu ng xut hin ( entrance)....................................................................................................... 9 3.2.2. Hi ng i mu (emphasis) ........................................................................................................ 9 3.2.3. Hiu ng bin mt (Exit)................................................................................................................ 9 3.3. Cc dng c thng dng trong powerpoint thit k th nghim .............................. 10 3.3.1. ng nghim cha dung dich ........................................................................................................ 10 3.3.2. Erlen............................................................................................................................................... 10 3.3.3. Bnh lng ....................................................................................................................................... 10 3.3.4. Gi th nghim ......................................................................................................................... 10 3.3.5. Bnh thy tinh c cao .................................................................................................................... 10 3.3.6. n cn.......................................................................................................................................... 10 3.3.7. L dung dch ................................................................................................................................. 10 3.4. Mt s th nghim o thng dng ................................................................................... 10 3.4.1. iu ch v thu kh Cl2 trong phng th nghim......................................................................... 10 3.4.2. iu ch v thu kh SO2 trong phng th nghim ....................................................................... 10 3.4.3. iu ch v thu kh H2S trong phng th nghim ...................................................................... 10 3.4.4. Phn ng ca kim loi vi dung dch axit................................................................................... 10 3.4.5. Kh NH3 chy trong kh oxi ......................................................................................................... 10 B. Phn mm m phng th nghim Crocodile Chemistry ................................................. 10 3.5. Ci t phn mm Crocodile Chemistry ....................................................................... 10 3.6. Cch s dng phn mm Crocodile Chemistry ............................................................ 10 3.6.1. Gii thiu cc cng c v cch s dng ...................................................................................... 10 3.6.2. Cc loi ho cht trong phn mm .............................................................................................. 10 3.6.3. Cc dng c v thit b th nghim trong phn mm.................................................................. 10 3.6.4. Gii thiu cc ch thit k sn ................................................................................................ 11 3.6.5. Gii thiu cch thit k mt s th nghim m phng trong chng trnh ho hc ph thng11 CHNG 4: THIT K BI GING IN T HO HC THCS .............................. 12 4.1. Thit k bi ging in t ha hc lp 8........................................................................ 12 4.1.1. Bi Tnh cht ca oxi ................................................................................................................ 12 4.1.2. Bi iu ch oxi, phn ng phn hy...................................................................................... 12 2

4.1.3. Bi Khng kh, s chy ............................................................................................................ 12 4.1.4. Bi Tnh cht, ng dng ca hiro........................................................................................... 12 4.1.5. Bi Phn ng oxi ha - kh ...................................................................................................... 12 4.1.6. Bi iu ch Hiro- phn ng th ........................................................................................... 12 4.1.7. Bi Nc.................................................................................................................................... 13 4.1.8. Bi Axit baz mui............................................................................................................. 13 4.2. Thit k bi ging in t ha hc lp 9........................................................................ 13 4.2.1. Bi S lc v bng tun hon cc nguyn t ha hc ......................................................... 13 4.2.2. Bi Luyn tp chng 3 ........................................................................................................... 13 4.2.3. Bi Metan .................................................................................................................................. 13 4.2.4. Bi Etilen ................................................................................................................................... 13 4.2.5. Bi Axetilen............................................................................................................................... 13 4.2.6. Bi Benzen ................................................................................................................................ 13 4.2.7. Bi Du m v kh thin nhin................................................................................................. 13 4.2.8. Bi Ru etylic ......................................................................................................................... 13 4.2.9. Bi Axit axetic. Mi lin h gia etilen, ru etylic v axit axetic........................................ 13 CHNG 5: NG DNG CNTT TRONG KIM TRA V NH GI ....................... 15 5.1. Kim tra trong ging dy ha hc.................................................................................. 15 5.1.1. Lch s pht trin o lng v lng gi gio dc ..................................................................... 15 5.1.2. Pht trin nhn thc ...................................................................................................................... 15 5.2. nh gi trong dy hc hng tp trung vo hc sinh ................................................ 15 5.3. Kim tra trc nghim ...................................................................................................... 15 5.3.1. u nhc im ca bi kim tra trc nghim............................................................................. 15 5.3.2. Cc loi cu hi trc nghim ........................................................................................................ 15 5.3.3. Trc nghim trc tip trn my tnh ............................................................................................ 15 5.3.4. Trc nghim trn giy, x l dng my tnh ................................................................................ 15 5.3.5. X l kt qu .................................................................................................................................. 15 5.3.6. ng dng trong kho st khoa hc.............................................................................................. 15

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CHNG 1 TNG QUAN NG DNG CNTT TRONG DY HC HA HCS tit: 3 (L thuyt: 2 tit; thc hnh: 2 tit) MC TIU Mc tiu v kin thc + Trnh by c u nhc im ca ng dng CNTT trong ging dy ha hc + Trnh by c cng dng ca cc phn mm trong ging dy ha hc Mc tiu v k nng + Ci t c cc phn mm, lp c ti khon mail cho mnh v s dng thnh tho. Mc tiu v thi + Nghim tc chun b trc cc kin thc trong chng. + Tch cc vn dng tr li cu hi v bi tp cui chng. + Yu thch mn hc. NI DUNG

1.1. Tng quan ng dng CNTT trong dy hc Ha hc1.1.1.Qa trnh dy v hc a) Dy v hc s dng cng ngh b) Qu trnh hc tp c) Mc tiu ca dy v hc 1.1.2. Cng ngh thng tin vi dy, hc v nh gi a) Cng ngh thng tin to thun li cho qu trnh dy v hc b) nh gi v lng gi hc tp

1.2. Nhng u im v hn ch ca vic ng dng CNTT trong ging dy ha hc v mt s xut1.2.1. u im 1.2.2. Nhc im 1.2.3. Mt s xut a) Vic chun b bi ging c ng dng CNTT b)La chn cc hnh thc dy hc ph h c) Mt s vn lu khi ln lp

1.3. Khai thc v s dng Internet1.3.1. Gii thiu chung v Internet a) Mng my tnh b) Internet l g ? c) Giao thc TCP/IP (Transmission Control Protocol/ Internet Protocol) d) a ch IP (Internet Protocol) e) Tn min (Domain Name) f) Cc dch v trn Internet - Mt s thut ng v Internet - Cc dch v trn Internet 4

g) ADSL - cng ngh mi truy nhp Internet tc cao - ADSL l g? - Li ch ca cng ngh ADSL 1.3.2. Khai thc v s dng Internet a) Trnh duyt Web - Trnh duyt Web Internet Explore (IE) - Trnh duyt Web Mozilla Firefox - Trnh duyt Web Google Chrome b) Tm kim thng tin trn Internet - Cc dng thng tin trn Internet - Cc cng c tm kim 1.3.3. Th in t (Email) a) Gii thiu chung v email b) Cch to v s dng email - Cch to v s dng mail trn gmail - Cch to v s dng mail trn yahoo

1.4. Mt s phn mm ng dng h tr trong ging dy ha hc1.4.1. Phn mm Microsoft Word 1.4.2. Phn mm PowerPoint 1.4.3. Phn mm CROCODILE-Chemistry 1.4.4. Phn mm VIOLET 1.4.5. Phn mm Chemoffice 1.4.6. Chemstech

TI LIU HC TP [1]. Nguyn Trng Th, ng dng cng ngh thng tin trong ging dy ha hc, NXBGD2002. [2]. Nguyn Mnh Hng, Bi ging ng dng CNTT trong dy hc ha hc, Ti liu lu hnh ni b trng i hc Hng Vng. [3] Cc ti liu t internet CU HI N TP V THO LUN

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CHNG 2: CNG C DY HC HO HCS tit: 10 (L thuyt: 5 tit; thc hnh: 8 tit; kim tra: 2 tit) MC TIU Mc tiu v kin thc + Trnh by c cc cng c phc v son tho bi ging ha hc + Trnh cng dng ca cc cng c Mc tiu v k nng + S dng cc cng c thnh tho + S dng linh hot cc cng c Mc tiu v thi + Nghim tc chun b trc cc kin thc trong chng. + Tch cc vn dng tr li cu hi v bi tp cui chng. + Yu thch mn hc. NI DUNG

2.1. Cc cng c phc v son tho bi ging ha hc2.1.1. Chng trnh Microsoft Word a) Cc thao tc c bn - Khi ng, thot khi Winword - Mn hnh Winword - To mi, m, lu vn bn - Cc phm thng dng khi son tho - Cch nh ting Vit trn vn bn - Nhp vn bn - Thao tc trn mt khi trn - Trnh by vn bn trn mn hnh b) nh dng vn bn - nh dng k t - nh dng on vn bn - nh dng ct trong vn bn - nh dng Tab - nh dng Bullets & Numbering - To ch ci ln u dng - nh dng khung v nn (Borders & Shading) - nh dng trang v in n c) Lm vic vi cc i tng trn vn bn - Chn v hiu chnh hnh nh - Chn cc k t c bit - V hnh trong vn bn - To ch ngh thut - nh cng thc ton Equation d) Lp bng biu e) To Auto Text 6

f) To Auto Correct g) To Macro (tp lnh nh) h) Phng ch i) S dng Insert/Field/Equations (Eq) k) To mc lc ti liu - Cc khi nim c bn - To vn bn chnh - To cc heading - In mc lc - Dowload, update file 2.1.2. Adobe acrobat v acrobat reader 2.1.3. Phn mm vit cng thc ho hc a) ISIS Draw - Download v ci t phn mm - Tnh nng ca phn mm - Cch s dng b) CS ChemDraw - Download v ci t phn mm - Tnh nng ca phn mm - Cch s dng c) ChemSketech - Download v ci t phn mm - Tnh nng ca phn mm - Cch s dng

2.2. Phng tin trnh din: Microsoft powerpoint2.2.1. Trnh din trong ging dy ho hc 2.2.2. Microsoft powerpoint a) Khi qut v Microsoft powerpoint b) Nhng yu cu c bn ca trnh din trong ging dy c) To mt tp tin trnh din trn Microsoft powerpoint d) Cc thao tc son tho c bn v nng cao - Cc k thut son tho - Chn nh, phim - Hypelink - Cc hiu ng trnh din - Trnh din e) To bn ghi ch v bn phn pht f) Kt ni cc phng tin a mi trng vo MS PowerPoint - Biu hoc th ng - Hnh nh tnh v ng - m thanh - Phim

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2.3. My chiu d liu (Data prorector)2.3.1. phn gii 2.3.2. Cng ngh LCD v DLP 2.3.3. S dng my chiu a) Lp t prorector b) An ton chung khi s dng c) S dng my chiu th no c hnh nh tt nht d) Ch thng gi e) V tr t my f) Cch ni dy cp TI LIU HC TP [1]. Nguyn Trng Th, ng dng cng ngh thng tin trong ging dy ha hc, NXBGD2002. [2]. Nguyn Mnh Hng, Bi ging ng dng CNTT trong dy hc ha hc, Ti liu lu hnh ni b trng i hc Hng Vng. [3] Cc ti liu t internet CU HI N TP V THO LUN

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CHNG 3: TH NGHIM HO HC M PHNGS tit: 8 (L thuyt: 4 tit; thc hnh: 8 tit) MC TIU Mc tiu v kin thc - Kin thc v ha hc ph thng, cc th nghim c th s dng th nghim m phng Mc tiu v k nng - S dng thnh tho cc cng c thit k th nghim m phng Mc tiu v thi + Nghim tc chun b trc cc kin thc trong chng. + Tch cc vn dng tr li cu hi v bi tp cui chng. + Yu thch mn hc. NI DUNG

A. Thit k th nghim ho hc o bng Microsoft PowerPoint 3.1. Thit k m hnh th nghim3.1.1.Thit k dng c th nghim t ChemDraw Ultra 8.0 a) M hnh orbital phn t v orbital lai ha b) M hnh bnh lng, bnh cu, bnh dung dch 3.1.2. Thit k dng c th nghim t Chemwindow a) Thit k ngn la v n cn b) Thit k ngn la v n cn 3.1.3. Thit k m hnh th nghim bng chng trnh ng dng Sience Teachers Helper 3.1.4. Thit k mt s m hnh th nghim bng AutoShapes trong Microsofr Word a) To dung dch trong bnh b) Thit k ng dn kh hnh ch U

3.2. Cc hiu ng thng dng trong powerpoint thit k th nghim3.2.1. Hiu ng xut hin ( entrance) a) Hiu ng xut hin ( entrance) b) Cch to dung dch (kh c mu) tng ln c) Cch to kh khng mu xut hin v bay ra khi ng nghim d) Cch to kt ta xut hin 3.2.2. Hi ng i mu (emphasis) 3.2.3. Hiu ng bin mt (Exit) a) Cch to dung dch (kh c mu) h xung b) Cch cho ha cht vo ng nghim v tan ra

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3.3. Cc dng c thng dng trong powerpoint thit k th nghim3.3.1. ng nghim cha dung dich 3.3.2. Erlen 3.3.3. Bnh lng 3.3.4. Gi th nghim 3.3.5. Bnh thy tinh c cao 3.3.6. n cn 3.3.7. L dung dch

3.4. Mt s th nghim o thng dng3.4.1. iu ch v thu kh Cl2 trong phng th nghim 3.4.2. iu ch v thu kh SO2 trong phng th nghim 3.4.3. iu ch v thu kh H2S trong phng th nghim 3.4.4. Phn ng ca kim loi vi dung dch axit 3.4.5. Kh NH3 chy trong kh oxi

B. Phn mm m phng th nghim Crocodile Chemistry 3.5. Ci t phn mm Crocodile Chemistry 3.6. Cch s dng phn mm Crocodile Chemistry3.6.1. Gii thiu cc cng c v cch s dng 3.6.2. Cc loi ho cht trong phn mm a) Kim loi b) Axit v kim dng dung dch c) Cc oxit d) Mui halogen v sunfua e) Mui cacbonat v nitrat f) Mui photphat, sunfat v cromat g) Mt s hp cht khc h) Cc cht ch th mu i) Cc cht kh k) Cch ly ho cht 3.6.3. Cc dng c v thit b th nghim trong phn mm a) Cc dng c thu tinh b) Mt s dng c khc c) Cc dng c o v kho cu d) Ly dng c e) Xo dng c ra khi mn hnh f) , rt cc cht g) Lp dng c - Lp nt cao su - Lp ng ni - Mt s dng c c van iu khin h) Thit lp cc mch in, in phn i) S dng cng c th k) Nt tm dng v thc hin li 10

3.6.4. Gii thiu cc ch thit k sn a) Phn loi vt cht b) Mt s dng phn ng khc nhau c) Cc mui v tnh tan (dung dch) d) Cc th nghim v tch cc cht e) Cc axit v kim f) Tc phn ng g) Tnh cht ho hc ca kim loi h) in hc v s in phn i) Tnh ton trong ho hc k) Thuc th v cht ch th l) Cc th nghim m rng 3.6.5. Gii thiu cch thit k mt s th nghim m phng trong chng trnh ho hc ph thng TI LIU HC TP [1]. Nguyn Trng Th, ng dng cng ngh thng tin trong ging dy ha hc, NXBGD2002. [2]. Nguyn Mnh Hng, Bi ging ng dng CNTT trong dy hc ha hc, Ti liu lu hnh ni b trng i hc Hng Vng. [3] Cc ti liu t internet CU HI N TP V THO LUN

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CHNG 4: THIT K BI GING IN T HO HC THCSS tit: 6 (L thuyt: 2 tit; thc hnh: 8 tit) MC TIU Mc tiu v kin thc + Tnh by c phn phi chng trnh ha hc lp 8, lp 9 + Ni dung cc bi hc trong chng trnh k 2 lp 8 v lp 9 + Nhng th nghim no c th m phng, th nghim no dng phim nh. Mc tiu v k nng + La chn cch thit k bi ging in t ph hp + S dng thnh tho cc phn mm thit k bi ging Mc tiu v thi + Nghim tc chun b trc cc kin thc trong chng. + Tch cc vn dng tr li cu hi v bi tp cui chng. + Yu thch mn hc. NI DUNG

4.1. Thit k bi ging in t ha hc lp 84.1.1. Bi Tnh cht ca oxi a) Thit k th nghim o Phn ng ca oxi vi S, P v Fe b) Thit k bi ging trn PowerPoint c) Thit k gio n trn Microsoft Word 4.1.2. Bi iu ch oxi, phn ng phn hy a) Thit k th nghim o iu ch oxi t KMnO4 b) Thit k bi ging trn PowerPoint c) Thit k gio n trn Microsoft Word 4.1.3. Bi Khng kh, s chy a) Thit k th nghim o Thnh phn ca khng kh b) Thit k bi ging trn PowerPoint 4.1.4. Bi Tnh cht, ng dng ca hiro a) Thit k th nghim o iu ch v tnh cht ca Hiro b) Thit k bi ging trn PowerPoint c) Thit k gio n trn Microsoft Word 4.1.5. Bi Phn ng oxi ha - kh a) Thit k th nghim o Phn ng ca Hiro vi oxi v Phn ng ca Hiro vi CuO b) Thit k bi ging trn PowerPoint c) Thit k gio n trn Microsoft Word 4.1.6. Bi iu ch Hiro- phn ng th a) Thit k th nghim o iu ch Hiro trong phng th nghim v iu ch Hiro trong cng nghip b) Thit k bi ging trn PowerPoint c) Thit k gio n trn Microsoft Word 12

4.1.7. Bi Nc a) Thit k th nghim o Phn hy nc bng dng in, Tng hp ncv Tnh cht ca H2O b) Thit k bi ging trn PowerPoint c) Thit k gio n trn Microsoft Word 4.1.8. Bi Axit baz mui a) Thit k bi ging trn PowerPoint b) Thit k gio n trn Microsoft Word

4.2. Thit k bi ging in t ha hc lp 94.2.1. Bi S lc v bng tun hon cc nguyn t ha hc a) Thit k bi ging trn PowerPoint b) Thit k gio n trn Microsoft Word 4.2.2. Bi Luyn tp chng 3 a) Thit k bi ging trn PowerPoint b) Thit k gio n trn Microsoft Word 4.2.3. Bi Metan a) Thit k th nghim o iu ch Metan v Phn ng ca Metan vi Clo b) Thit k bi ging trn PowerPoint 4.2.4. Bi Etilen a) Thit k th nghim o iu ch Etilen v Phn ng ca Etilen vi dd Br2 b) Thit k bi ging trn PowerPoint c) Thit k gio n trn Microsoft Word 4.2.5. Bi Axetilen a) Thit k th nghim o iu ch Axetilen v Phn ng ca Etilen vi O2 v dd Br2 b) Thit k bi ging trn PowerPoint c) Thit k gio n trn Microsoft Word 4.2.6. Bi Benzen a) Thit k th nghim o Phn ng t chy benzen v Phn ng ca Benzen vi dd Br2 b) Thit k bi ging trn PowerPoint c) Thit k gio n trn Microsoft Word 4.2.7. Bi Du m v kh thin nhin a) Thit k th nghim o Khai thc du m v Chng ct du m trong cng nghip b) Thit k bi ging trn PowerPoint c) Thit k gio n trn Microsoft Word 4.2.8. Bi Ru etylic a) Thit k th nghim o iu ch ru etylic t tinh bt v Phn ng ca ru etylicv H2O vi Na b) Thit k bi ging trn PowerPoint c) Thit k gio n trn Microsoft Word 4.2.9. Bi Axit axetic. Mi lin h gia etilen, ru etylic v axit axetic a) Thit k bi ging trn PowerPoint b) Thit k gio n trn Microsoft Word

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TI LIU HC TP [1]. Nguyn Trng Th, ng dng cng ngh thng tin trong ging dy ha hc, NXBGD2002. [2]. Nguyn Mnh Hng, Bi ging ng dng CNTT trong dy hc ha hc, Ti liu lu hnh ni b trng i hc Hng Vng. [3] Cc ti liu t internet [4] Sch gio khoa Ha hc lp 8, lp 9 CU HI N TP V THO LUN

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CHNG 5: NG DNG CNTT TRONG KIM TRA V NH GIS tit: 3 (L thuyt: 2 tit; tho lun: 2 tit) MC TIU Mc tiu v kin thc Trnh by cch son tho cu hi trc nghim v cc loi cu hi trc nghim Mc tiu v k nng S dng thnh tho phn mm son cu hi trc nghim Mc tiu v thi + Nghim tc chun b trc cc kin thc trong chng. + Tch cc vn dng tr li cu hi v bi tp cui chng. + Yu thch mn hc. NI DUNG

5.1. Kim tra trong ging dy ha hc5.1.1. Lch s pht trin o lng v lng gi gio dc 5.1.2. Pht trin nhn thc

5.2. nh gi trong dy hc hng tp trung vo hc sinh 5.3. Kim tra trc nghim5.3.1. u nhc im ca bi kim tra trc nghim 5.3.2. Cc loi cu hi trc nghim a) Loi c cu tr li ng hoc tt nht b) Cu tr li khng y (hoc khng c th) c) Cu hi sp xp d) Bi tp din gii 5.3.3. Trc nghim trc tip trn my tnh 5.3.4. Trc nghim trn giy, x l dng my tnh a) Chng trnh phn mm son cu hi trc nghim b) Thc hin bi kim tra trc nghim 5.3.5. X l kt qu 5.3.6. ng dng trong kho st khoa hc TI LIU HC TP [1]. Nguyn Trng Th, ng dng cng ngh thng tin trong ging dy ha hc, NXBGD2002. [2]. Nguyn Mnh Hng, Bi ging ng dng CNTT trong dy hc ha hc, Ti liu lu hnh ni b trng i hc Hng Vng. [3] Cc ti liu t internet CU HI N TP V THO LUN

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TI LIU THAM KHO[1]. Nguyn Trng Th, ng dng cng ngh thng tin trong ging dy ha hc, NXBGD2002. [2]. Nguyn Mnh Hng, Bi ging ng dng CNTT trong dy hc ha hc, Ti liu lu hnh ni b trng i hc Hng Vng. [3] Cc ti liu t internet [4] Sch gio khoa Ha hc lp 8, lp 9

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