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',-0@;;15/<<=15'-01A !BC)
*(3%'(DEFG,8.AH/I.
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“Đổi mới mạnh mẽ phương pháp giáo dục và đào tạo, khắc phục lối truyền thụ
một chiều, rèn luyện tư duy sáng tạo của người học. Từng bước áp dụng phương
pháp tiên tiến, phương pháp hiện đại vào quá trình dạy học”..:W%
'(@[>[\F“Phương pháp giáo dục phổ thông phải phát huy
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', %@/%)O;/.C'3 "
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!"#$$%&'()&*'%
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%8.I.3#D1H$,I&0W(
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+,&-&*'%
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AB@#%/5`',-%%;#5
@!-)?b8$$M"!5#!
5!%',-_I8$$M".A%
'('!8".A010 %
I#$( 13$+$%$@!',-"
-> ")4I>39 "R
HA@!%/',-5
!%%8!+B+>)
./'&0##1234''5'67897
?b:9E+>S;<!(%',-0
I%3)*@%.E+!M39"
.A',-"->B2%$
$%F“MIi thJy, cô giáo là một tKm gương đạo đức tự học và sáng
tạo”.
:;-'"$* $%'<'=
f>b$1H@!%/5!
%',-0R$M%ga@8@

p#eoqF/1H@ #D1H8
4
p#e\[F/1H@ #!D1H1H8)
PM5F l#
p#eorF s-!:$
p#e\nF s-!:$
p#e\eF s-!:$
p#e\oF s-!:$
p#e\\F s-!:$
p#e\mF s-!:$
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uU.,U+Sv)
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a
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Q;'(F*8mJ2lJ2@%)
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p7HJ2F
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p7HJ2@%F
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m
l

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&5,>/5,>-&
!=_1Hi+ 1F
2.1 Về phía học sinh
,@#9%_+/%&0/,@#
9FyW%8.Iz.,@#9@8@H01
@8@+H01I'")Y_/HI'"
F8,.,>010<3H{H&
#@0&@'-.%2<,#$%
"@N)*i :!-.801 #%
00:$%;5)?>@ %8.I%
6
28&;B$i$; @&.I.C
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FAAGG !"#$%&'E
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>%&/I.H #A$&/ - '`
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7H i.F
qmFmJo‚me
7H..F
me•qm‚eow
%$1HF7H iFme
7H.Feow
Ngoài ra, khi hướng dSn học sinh giải bài toán tìm hai số khi biết hiệu và
tQ số của hai số đó .Giáo viên có thể trình bày cách giải như sau:
21+4!1H$M b.F
q6o‚mu$Mv
7H i.F
qmFmJo‚me
7H..F
me•qm‚eow
13
7H.F
%$1HF7H iFme
7H.Feow
/;@*H/1H@ #!D1H1H8
8&5!2% 1F
p0@L> 
pƒ%S-#H-#HM/)
p?:', %',+ F
•/1H@ #D1H1H8
X-•/1H@ #!D1H1H8
pƒ%S1HM/)
pƒ%SH!D1H1HM/)
pQ^1+4/ - )
PB1QR@Q %8D1H'',$"1Hj1H.+

X01@J%SA', %u/@8{yz
y!zv%3'V01J%S 8{y>
+z3 %',/1H@ #!D1H1H8)
-3D1H'',.IA$% &'>/9
@%F
I-,!J1H benqn)/1H8 #b$l.M1H
9/A1H9)uYoe\r7Wd s-!:$v
X'V01J%SD1HF7H9$l.M/A1H
9K.F
7H9$l.M1H9-1H9 b
e
l
1H9)
X1HM/.1H91H9)7H9+9l
$M b1H9+9e$M#)
Y%-',%/1H@ #D1H1H
8)1H.enqn)D1H1H.
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)
#"-01 %+5% %_I
A$e)
(7FQ;'(-D1H1HAN'',$1H.3
>.M)
I-,+J1H.l[)/1H8 #b#1H.m
.M/A1H i)uYoe\r7Wd s-!:$v
15
X'V01J%SD1HF7H.m.M/A1H i
8K.1H.$m.M1H i)X-1H i b
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X1HM/.1H91H9)7H9+9l$M
b1H9+9\$M#)
Y%-',%/1H@ #D1H1H)
[7#I@Y%3D1H1HN'',V1H$"
1H)
I-,:JX!1H.loq)/1H8 #b1H9
en.M/A1H9)uY[7Wdem[v
X'V01J%SD1HF7H9en.M/A1H
98K.1H9$en.M1H9)X-1H9 b
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1H
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16
X1HM/.1H91H91H9+9en
$M b/1H9+9e$M#)
Y%-',%/1H@ #!D1H1H
8)
#"-01 %+5% %_I
A$[)
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.M)
;M#D"Jd% %',“Tìm hai số khi biết tổng hoặc hiệu
và tQ số của hai số đó”01I.BB!J%SJ%SD
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d#{A@&.$\O[1)
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