Nâng cao kỹ năng giải bài tập phần quang hình cho học sinh lớp 9 bằng cách hướng dẫn cho học sinh điều tra, phân tích

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LP[F$`2H5t2[FR$FBYF'E$0KH[F
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23\K;27
?A‹A.T38`38L8r:3O8.K7B
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34Kk14+[I)&)FI17+$<&
YA0fVm3O4
v.T38`38o.i7LMR1`:8g7U`.
YA=A|.L.T38`38U`.o.i7LMR=L.TLLMVW:o8.L/:^[3Ob8&

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NK;t:$[8FZ#3\$]K&J[$KHG$$7
$`F"&+7GX)FtmF#G$$7X$$"&+7/$F*"&
+7$[#&$R=$F
!Wt}:}$`K;<&"&+7GP#&]$)F$`b+J
$^ˆ2c
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$@&$1$`ImI1#&2K;e
I<(22"
?Ž65t ?Ž65:
N EK# 0)F N EK# 0)F
= @1 t  = @1*D 0• 
= @1 • ' = @1*D(F  '
= "&*D : ' = "&*D  '
= @*D @ ' = @1*D PG '
=' "&*D n& ' =' "&*D P&# '
= "&*D n& = @1*D P '
/
=, "&*D*^ n& ' =, @1*D P& '
=/ @1*D 0 ' =/ @1*D N$ '
=5 @1*D ;& =5 "&*D *"F
= "& & ' = @1-&$ * '
 @1 \  "&*D * '
 @1*D Pj '  :1:1PE$ *&
 :1:1 PG  @1*Dn *f '
 "&*D (i '  "&*D *;F '
' 1@J 0 ' ' "&*D ‘ '
YA;ARd8X37[LL8/3O/Qk•3O:/:O.P.Q8/Q^~32dL|.L.T38`38o.i7
LMR=L.TLb8&.IgG2G$c
NK;t:$1=$F$[8FZ#3\$]K&J[$KH

G$$7$`F"&+7+.X)FtmF#G$$7X$$"&+7
'$F.&3\$F$1$F
SKW$`K;t:$1Ig"&+7K#&]$)F$`
b+J$^ˆ2c
I*7+1$$h"&+7
$*7#&$R$`"&+7
 I<(22"
?Ž65t ?Ž65:
N EK# 0)F N EK# 0)F
= @1 t ' = @1*D 0• 
= @1 • ' = @1*D(F  '
= "&*D : = "&*D 
= @*D @ = @1*D PG '
=' "&*D n& =' "&*D P&# '
= "&*D n& = @1*D P
=, "&*D*^ n& , =, @1*D P& '
=/ @1*D 0 =/ @1*D N$ '
=5 @1*D ;& , =5 "&*D *"F
= "& & = @1-&$ * '
 @1 \ ,  "&*D * '
 @1*D Pj  :1:1PE$ *&
 :1:1 PG ,  @1*Dn *f '
 "&*D (i '  "&*D *;F '
' 1@J 0 ' ' "&*D ‘ 
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F[FK1$$4)F&(<&$1"XR$#2$K)F
+J$1X&[$%U892&&3\$2$;
5
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:;$[8&$G)`Xr<&.#$%&Xa2
KH8&+%$FJE$
N&MF8G$$S#&J"+<&NI
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=A 8b3Lj:8kŒf.Kd4
X 0\/38^.i7LMd3OUe38•O./LMqLMd3OUe38ƒ\Rdo8.L.T38`38
o.i7LMRLMVW:1`\RdL/:^[3O4
=
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