47
,0Ө&7,Ç8
6DXNKLKӑF[RQJEjLQj\+6FyNKҧ QăQJ
1. VӅ NLӃQWKӭF:
–1KұQELӃWÿѭӧFNKiLQLӋPFăQEұFEDFӫDPӝWVӕWKӵF
– 7tQKÿѭӧFJLiWUӏÿ~QJKRһFJҫQÿ~QJFăQEұFEDFӫDPӝWVӕKӳXWӍEҵQJPi\WtQKFҫPWD\
– 1KұQELӃWÿѭӧFNKiLQLӋPFăQWKӭFEұFEDFӫDPӝWELӇXWKӭFÿҥLVӕWtQKJLiWUӏFӫDFăQWKӭF
EұFEDWҥLJLiWUӏFӫDELӃQ
2. VӅ QăQJOӵF:
1ăQJOFFKXQJ1ăQJOӵFWӵ FKӫWӵ hӑFYj1ăQJOӵFJLDRWLӃSKӧSWiF+6WKӵFKLӋQFi
QKkQKRҥWÿӝQJ.KiPSKiYj7KӵFKjQKÿӇ WUuQKEj\NLӃQWKӭFFӫDFiFEjLWRiQ
OLrQTXDQÿӃQFăQEұFEDFӫDPӝWVӕ7KDPJLDKRҥWÿӝQJQKyPWURQJKRҥWÿӝQJ7KӵFKjQK
.KiPSKiWtQKFăQEұFEDFӫDFiFELӇXWKӭF
1ăQJOFWRiQKF 1ăQJOӵFJLҧLTX\ӃWYҩQÿӅ WRiQKӑFYj1ăQJOӵFWѭGX\OұSOXұQWRiQ
hӑF+6GQJNLӃQWKӭFWKӇ WtFKKuQKOұSSKѭѫQJÿӇ WKӵFKLӋQÿѭӧFKRҥWÿӝQJ.KӣLÿӝQJ
.KiPSKiÈSGөQJNLӃQWKӭFWtQKWRiQFăQEұFEDVӱ GөQJPi\WtQKFҫPWD\WKӵFKLӋQ
FiFEjL7KӵFKjQKYjEjLWұS
3. VӅ phҭPFKҩW:
7UiFKQKLӋPYjFKăPFKӍ+6FyWUiFKQKLӋPWURQJKRҥWÿӝQJFiQKkQWӵ JLiFWKӵFKLӋQWtQK
WRiQFăQEұFED&iQKkQFKăPOjPWKӵFKLӋQFiFKRҥWÿӝQJNKiPSKiUDFiFQӝLGXQJPӟL
FKREҧQWKkQ
,,7+,ӂ7%ӎ 'Ҥ<+Ӑ&9¬+Ӑ&/,ӊ8
ĈӕLYӟLJLiRYLrQ 6*.6*9.+%'
ĈӕLYӟLKӑFVLQK 6*.ÿӗ GQJKӑFWұS
,,,7,ӂ175Î1+'Ҥ<+ӐC
+RҥWÿӝQJ.KӣLÿӝQJ
a) MөFWLrX*L~S+6WLӃSFұQÿҷQJWKӭFOXӻ WKӯDEұFEDJӧLVӵ WzPzWӯ ÿҷQJWKӭFGүQ
ÿӃQEjLKӑFYӅ FăQEұFEDFӫDPӝWVӕ
E1ӝLGXQJ7KӵFKLӋQWuPÿҷQJWKӭFOLrQTXDQOXӻ WKӯDEұFEDWuPFKLӅXGjLFҥQKFӫD
KuQKOұSSKѭѫQJ
F6ҧQSKҭP+6FyWKӇ ELӇXGLӉQFKLӅXGjLPӛLFҥQKWăQJWKrPOjÿҷQJWKӭFD3 YӟL
DOjFKLӅXGjLPӛLFҥQKWăQJWKrP+6NKiFQKұQ[pW
%jL 2. CĂN BẬC BA
Thời gian thực hiện: 2 tiết
$.+Ӣ,ĈӜNG
48
G7ә FKӭFWKӵFKLӋQ
* *9FKX\QJLDRQKLPYKFWS *9\rXFҫX+6ÿӑFÿӅ YjTXDQViWKuQKYӁ KRҥWÿӝQJ
.KӣLÿӝQJYjYLӃWÿҷQJWKӭFELӇXGLӉQWKӇ WtFKFӫDKuQKOұSSKѭѫQJVDXNKLWăQJOrQVӭFFKӭD
* +6WKFKLQQKLPYKFWS +6WKӵFKLӋQWUҧ OӡLFkXKӓLKRҥWÿӝQJ.KӣLÿӝQJEҵQJ
FiFKWKӇ KLӋQD3
%iRFiRNWTX KRWÿQJYjWKROXQ*9FKR+6[XQJSKRQJ+6OrQEҧQJJKLÿiSiQ
* KWOXQQKQÿQK
– *9QKұQ[pWFkXWUҧ OӡLFӫD+6
– *9FKӕWOҥLYӟLD3 QKѭYұ\PXӕQWuPDWDWKӵFKLӋQEҵQJFiFKQjR
&ăQEұFEDFӫDPӝWVӕ
+RҥWÿӝQJ.KiPSKi
a) MөFWLrX +6SKiWELӇXÿѭӧFNKiLQLӋPFăQEұFEDNtKLӋXFăQEұFED
ENӝLGXQJ &iQKkQ+6TXDQViWEjLWRiQKRҥWÿӝQJ.KiPSKiYjWUҧ OӡLFkXKӓLWURQJ
KRҥWÿӝQJ
F6ҧQSKҭP
+RҥWÿӝQJ.KiPSKiD&ҥQKFӫDNKӕLErW{QJ$OjGPE[3
G7ә FKӭFWKӵFKLӋQ
*9FKX\QJLDRQKLPYKFWS *9\rXFҫXFiQKkQ+6TXDQViWEjLWRiQKRҥWÿӝQJ
.KiPSKiYjWUҧ OӡLFkXKӓLWURQJKRҥWÿӝQJ.KiPSKi
+6WKFKLQQKLPYKFWS
– +6TXDQViWEjLWRiQKRҥWÿӝQJ.KiPSKiYjWKӵFKLӋQWUҧ OӡLFkXKӓLWURQJKRҥWÿӝQJ
.KiPSKi
– *9WәQJTXiWOrQVӕ WKӵF[WKRҧ PmQ[3 DWӯ ÿy\rXFҫX+6SKiWELӇXNKiLQLӋPFăQEұFED
%iRFiRNWTXKRWÿQJYjWKROXQ
– +6OrQEҧQJWKӵFKLӋQKRҥWÿӝQJ.KiPSKi
–+6SKiWELӇXNKiLQLӋPFăQEұFED
.WOXQQKQÿQK
– *9ÿiQKJLiNӃWTXҧ OjPYLӋFFӫD+6TXDKRҥWÿӝQJ.KiPSKi
–*9WKӵFKLӋQWUuQKEj\FiF9tGө
+RҥWÿӝQJ: ThӵFKjQK
a) MөFWLrX Sӱ GөQJNKiLQLӋPFăQEұFEDWtQKFăQEұFEDFiFVӕFiFELӇXWKӭFWURQJ
KRҥWÿӝQJ7KӵFKjQK
E1ӝLGXQJ+6WKӵFKLӋQ KRҥWÿӝQJ 7KӵFKjQK
F6ҧQSKҭP
ӕ
%. .+È03+È– 7+Ӵ&+¬1+– VҰ1'ӨNG
+RҥWÿӝQJThӵFKjQK D–EF–G
3
+RҥWÿӝQJThӵFKjQK D$ E% F& –
G7ә FKӭFWKӵFKLӋQ
*9FKX\QJLDRQKLPYKFWS
– *9\rXFҫX+6ÿӑFYjOjPYLӋFFiQKkQWKӵFKLӋQKRҥWÿӝQJ7KӵFKjQK
– *9\rXFҫX+6ÿӑFYjWKӵFKLӋQFһSÿ{L KRҥWÿӝQJ 7KӵFKjQK
+6WKFKLQQKLPYKFWS +6WKӵFKLӋQ KRҥWÿӝQJ 7KӵFKjQK
%iRFiRNWTXKRWÿQJYjWKROXQ
– &KӑQ+6JKLNӃWTXҧWUrQEҧQJ KRҥWÿӝQJ 7KӵFKjQK
– ĈҥLGLӋQ QKyPOҫQOѭӧWOrQEҧQJWUuQKEj\ KRҥWÿӝQJ 7KӵFKjQK
– &iF+6NKiFQKұQ[pW
.WOXQQKQÿQK *9QKұQ[pWÿiQKJLiEjLOjPFӫD+6TXD KRҥWÿӝQJ 7KӵFKjQK
VRYӟLÿiSiQÿ~QJ
7tQKFăQEұFEDEҵQJPi\WtQKFҫPWD\
+RҥWÿӝQJ.KiPSKi
a) MөFWLrX: +6Vӱ GөQJPi\WtQKFҫPWD\EҩPÿѭӧFNӃWTXҧ FӫDFăQEұFEDFiFVӕ
E1ӝLGXQJ+6TXDQViW*9KѭӟQJGүQFiFKEҩPPi\WtQKFҫPWD\VDXÿy\rXFҫX+6
WKӵFKjQKEҩPPi\
F6ҧQSKҭPFKӛ Qj\NK{QJFyVҧQSKҭP
G) Tә FKӭFWKӵFKLӋQ
*9FKX\QJLDRQKLPYKFWS +6TXDQViW*9KѭӟQJGүQFiFKEҩPPi\ Yj
WKӵFKjQKEҩPPi\
+6WKFKLQQKLPYKFWS +6TXDQViWYjEҩPPi\WtQKNӃWTXҧFiFFăQEұFED
WURQJ9tGө
%iRFiRNWTXKRWÿQJYjWKROXQ +6ÿӑFNӃWTXҧ EҩPPi\WtQKÿѭӧF
.WOXQQKQÿQK *9QKұQ[pWÿӕLFKLӃXNӃWTXҧ 9tGө 3
+RҥWÿӝQJ: ThӵFKjQK
a) MөFWLrX +6Vӱ GөQJPi\WtQKFҫPWD\EҩPÿѭӧFNӃWTXҧ FӫDFăQEұFEDFiFVӕ
E1ӝLGXQJ+6Vӱ GөQJPi\WtQKFҫPWD\YjWKӵFKLӋQKRҥWÿӝQJ7KӵFKjQK
F6ҧQSKҭP
+RҥWÿӝQJThӵFKjQK
D 3 | E
3
| –
F
3
| G
3
|
G7ә FKӭFWKӵFKLӋQ
*9FKX\QJLDRQKLPYKFWS *9\rXFҫX+6GQJPi\WtQKFҫPWD\WKӵFKLӋQ
FiQKkQ KRҥWÿӝQJ 7KӵFKjQK
+6WKFKLQQKLPYKFWS 0ӛL+6VӁ WKӵFKLӋQOҫQOѭӧWFiFWtQKWRiQFiFFăQEұFED
FӫDKRҥWÿӝQJ7KӵFKjQK
%iRFiRNWTXKRWÿQJYjWKROXQ &iF+6[XQJSKRQJOҫQOѭӧWÿӑFNӃWTXҧWuP
ÿѭӧFWURQJ KRҥWÿӝQJ 7KӵFKjQK+6NKiFQKұQ[pW
.WOXQQKQÿQK *9QKұQ[pWÿiQKJLiEjLOjPFӫD+6WURQJ KRҥWÿӝQJ 7KӵFKjQK
+RҥWÿӝQJ: VұQGөQJ
a) MөFWLrX +6Vӱ GөQJPi\WtQKFҫPWD\EҩPÿѭӧFNӃWTXҧ FӫDFăQEұFEDWURQJ
KRҥWÿӝQJ.KӣLÿӝQJ
E1ӝLGXQJ+6WKӵFKLӋQFһSÿ{LKRҥWÿӝQJ9ұQGөQJ
F6ҧQSKҭP
+RҥWÿӝQJVұQGөQJD
3
| FKLӅXGjLPӛLFҥQKWăQJWKrPJҩSOҫQ
G7ә FKӭFWKӵFKLӋQ
*9FKX\QJLDRQKLPYKFWS *9\rXFҫX+6ÿӑFYjWKӵFKLӋQFiQKkQ KRҥWÿӝQJ
9ұQGөQJ
+6WKFKLQQKLPYKFWS 0ӛL+6GQJPi\WtQKFҫPWD\WKӵFKLӋQ KRҥWÿӝQJ
9ұQGөQJ
%iRFiRNWTXKRWÿQJYjWKROXQ &KӑQ+6[XQJSKRQJOrQEҧQJWKӵFKLӋQ
hRҥWÿӝQJ9ұQGөQJ1KyP+6NKiFQKұQ[pW
.WOXQQKQÿQK *9QKұQ[pWÿiQKJLiEjLOjPFӫD+6WURQJKRҥWÿӝQJ9ұQ GөQJ
YӟLÿiSiQÿ~QJ
&ăQWKӭFEұFED
+RҥWÿӝQJ3.1: .KiPSKi
a) MөFWLrX +6KLӇXÿѭӧFNKiLQLӋPFăQWKӭFEұFEDNtKLӋXFăQWKӭFEұFED
ENӝLGXQJ &iQKkQ+6TXDQViWEjLWRiQKRҥWÿӝQJ.KiPSKiYjWUҧ OӡLFkXKӓLWURQJ
KRҥWÿӝQJ
F6ҧQSKҭP
+RҥWÿӝQJ.KiPSKiDD3 3QD 3
Q
E9ӟLQ D
3
=
3
9ӟLQ D
3
= 3 |
G7ә FKӭFWKӵFKLӋQ
*9FKX\QJLDRQKLPYKFWS *9\rXFҫXFiQKkQ+6TXDQViWEjLWRiQKRҥWÿӝQJ
.KiPSKiYjWKӵFKLӋQWUҧ OӡLFkXKӓLWURQJKRҥWÿӝQJ.KiPSKi
+6WKFKLQQKLPYKFWS
– +6 TXDQ ViW EjL WRiQ KRҥW ÿӝQJ .KiP SKi Yj WKӵF KLӋQ WUҧ OӡL FkX KӓL WURQJ
KRҥWÿӝQJ.KiPSKi
– *9WәQJTXiWOrQFăQWKӭFEұFEDFӫD$
%iRFiRNWTXKRWÿQJYjWKROXQ
– &iQKkQ+6OrQEҧQJJKLÿiSiQWURQJKRҥWÿӝQJ.KiPSKi
– &iQKkQ+6SKiWELӇXNKiLQLӋPFăQWKӭFEұFED
.WOXQQKQÿQK
– *9ÿiQKJLiNӃWTXҧ OjPYLӋFFӫD+6TXDKRҥWÿӝQJ.KiPSKi
– *9WKӵFKLӋQWUuQKEj\FiF9tGө
+RҥWÿӝQJ3.2: ThӵFKjQK
a) MөFWLrX +6Vӱ GөQJPi\WtQKFҫPWD\EҩPÿѭӧFNӃWTXҧ FӫDFăQWKӭFEұFED
E1ӝLGXQJ+6OjPYLӋFFiQKkQWKӵFKLӋQ KRҥWÿӝQJ 7KӵFKjQKWtQKFăQWKӭFEұFED
F6ҧQSKҭP
+RҥWÿӝQJThӵFKjQK9ӟL[ 4
3
| 9ӟL[ –4
3
27
G7ә FKӭFWKӵFKLӋQ
*9FKX\QJLDRQKLPYKFWS *9\rXFҫX+6ÿӑFYjOjPYLӋFFiQKkQWKӵFKLӋQ
KRҥWÿӝQJ7KӵFKjQK
+6WKFKLQQKLPYKFWS +6WKӵFKLӋQKRҥWÿӝQJ7KӵFKjQKWtQKFiFFăQWKӭF
EұFED
%iRFiRNWTXKRWÿQJYjWKROXQ:
– &KӑQ+6JKLNӃWTXҧWUrQEҧQJ KRҥWÿӝQJ 7KӵFKjQK
– &iF+6NKiFQKұQ[pW
.WOXQQKQÿQK*9QKұQ[pWÿiQKJLiEjLOjPFӫD+6TXDKRҥWÿӝQJ7KӵFKjQK
VRYӟLÿiSiQÿ~QJ
– ;HPOҥLÿӏQKQJKƭDFiFWtQKFKҩWFӫDEҩWÿҷQJWKӭF
– ;HPOҥLFiF9tGөNKҳFVkXFiFKWUuQKEj\FiFGҥQJWRiQOLrQTXDQEҩWÿҷQJWKӭF
– +RjQWKjQKEjLWұS
– &KXҭQEӏ EjLPӟL“7tQKFKҩWFӫDSKpSNKDLSKѭѫQJ”
,9.ӂ +2Ҥ&+ĈÈ1+*,È
+uQKWKӭFÿiQKJLi 3KѭѫQJSKiSÿiQKJLi &{QJFө ÿiQKJLi *KL&K~
– ĈiQKJLiWKѭӡQJ[X\rQ
6ӵ WtFK FӵF FKӫ ÿӝQJ
FӫD +6 WURQJ TXi WUuQK
WKDP JLD FiF KRҥW ÿӝQJ
hӑFWұS
6ӵ hӭQJ WK~ Wӵ WLQ
WUiFK QKLӋP FӫD +6 NKL
WKDP JLD FiF KRҥW ÿӝQJ
hӑFWұSFiQKkQ
7KӵFKLӋQFiFQKLӋPYө
hӧSWiFQKyP
– 3KѭѫQJSKiSTXDQViW
*9 TXDQ ViW TXD
TXiWUuQKKӑFWұSFKXҭQ
Eӏ EjL WKDP JLD YjR
EjLKӑF
*9 TXDQ ViW KjQK
ÿӝQJFNJQJQKѭWKiLÿӝ
FҧP[~FFӫD+6
– %iR FiR WKӵF KLӋQ
F{QJYLӋF
– +Ӌ WKӕQJFkXKӓLYj
EjLWұS
– 7UDRÿәLWKҧROXұQ
ҩ
ӫ
E
ҩ
ÿ
ҷ
K
ӭ
&1+,ӊM VӨ
![Giáo án Khoa học tự nhiên 9 Chân Trời Sáng Tạo chủ đề Điện từ: [mô tả/định tính]](https://cdn.tailieu.vn/images/document/thumbnail/2025/20250815/quynhanh02/135x160/560_giao-an-khoa-hoc-tu-nhien-9-chan-troi-sang-tao-chu-de-4-dien-tu.jpg)
