! "#$%&'()*'+,-& # /0123 4 !"#$%&#' (!)*+,$%()-".' / *,"012!34("5"6,,789:;$<= *2>-?2@,=*' (>A!3B+ !"#,-,>-C"$ D?-(#-56,7,8)9,8#:,8,8-6;-:,8;5,;<*,8=56#>*+,85?,8@ABC)(,8 85D*D,E56,;F@=%,)9,8#-GH,8;<I,-J5)>KL<;@=MK";>N&-O,KPKJ-D#EQ;5R; )+C;-SK>5,-E",8-T&)U,;-V ;;<WX Tuy nhiên trong khi thc hin UDCNTT vo ging dy, gio viên cn lưu m!t sô đi%u sau: EF*GHI=2+>8,JCK)7 L:8,:@M2:-NOP8-M!Q,$R8,!"#1, Q+>J@M=S5!;C=+3*6(, O :*>!!"#$ST ? Ví dụ :UVCB(WXY!0+V' ("51!Q2C "0 Z1CR ,!)0 $OL("5)[ O(;+B,!VX85+=V(M?P ![2C=+ Y!0' ("5 !+-+QX\8 $1$ ![CZY Z],;!+^_-+QX`-$ 12,` R P a? E`<C@M;$<:> !+,:L Q8% =b:>1!+![+>8 !W(,-1Q8% : >$Rc1T8"#1:[!;+A> !V=d,eM+: >!"#+[$Sf,=2(0!18,C=[:? EL =28-IX,(,>?F7-"!" :>C@MX1@MO!+-,TX0 1:> =X:,$R8YM8g???=![*-I[V$S(+>- :"0KLh!W:(,,=2Lh!WT8"#W -1CB+:,,:X$S-i!WjR1*,<8,? E=28*;X,I:*kHI,> -K8,L+L ;+Q,![(,-' :,2_L+ C@M1 $O:,L =2%*!"#,% W?F7-@M!;B -31@M@W1@WT???a E`-5W1QC) @ 1!VWQ: Q' C5[VR? YXZ#-7##D#-*+;E",885.&;<W-[#;\#-#(#@-7,8; ;W-!VL+CL17%::JT ?UV%*<;-,8,"0!Q+>7% !;" `24$b1!Q"1$!V: J!;5 81YZVW+ !V--C?QJX!; C3*1=+? lVí dụ như: !;(V-N*(,X-A 12!3 -C85+:#+@"5(,]mMK8)=nHA /R I^![C! 8,I"6K(#+@"5(, ,,C85+2T7:!A8,8Q!Q(c!"#2J>85+ "Q?H8Q!QJ,:W$S=2=jO$ $[ :-C"!"#$%[+h*:4/ *1h!)*+2 $S=R+!V8Q$ J<Z? lI, 1Q-,;70 (J<!V@M"Z: *1 M$e!,X:?RR$S[X7@M :2*(B;o(j 1=2!Vh!W"Z:,:>T =2+#+5(>A_!<5;$<[Jao>T>71 C-,0 !Z$SZ_!<5;$<Ca?I"% 1"Z:![T<1T(J7"01[$SL+L 8 -,(,-' :$!;Z? Ví dụ: "Z:]L@ ^L+L -CZYZ p'<=WB2$<!:Xq1:X8 !W; -(,-_=-!X,r;$<!;B -3::X[V8,:D B,![!VC::,!B![a1o [V-"Z: ,,!;D!VAL-i-RC,;-(,??? lJCX!;=+1>*:"WCT7 ,W+T ? Ví dụ: 4 2C685+=+$%!J,' (R+>71C2 7L $, 2=+$%=:-*,1(![1D$<CY X,[( g (R+>7V7*8>,@M?I, 1C Y7L=!"# =+!J,' ,"51CZ, "5??? Phư)c Trung, ngy 29 thng 4 năm 2010