GIÁO ÁN SOẠN DẠY BẰNG PHƯƠNG PHÁP BÀN TAY NẶN BỘT
TỰ NHIÊN XÃ HỘI LỚP 3- TRƯỜNG TIỂU HỌC HỢP THANH B

| Tuan l||
TL NHIEN VA XA HOl
Bai 1 : HOflT DONG TH0 Vfl C0 QCI0N HO
I. MUC TIEU
- HS co kha nang nhan ra sir thay doi cua long ngirc khi hit vao va thd ra
- Chi va noi dirge ten cac bo phan cua co quan ho hap tren so do
- Chi tren so do va noi dngc dirdng di cua khong kill khi ta hit vao va thd
- Hieu dirge vai tro va hoat dong thd doi vdi sir song cua con ngirdi
1
II. DO DUNG
GV : hinh ve trong SGK
HS : SGK
III. CAC HOAT D0NG DAY HOC CHU YEU

Hfl>

r;

JA UU

HOAT DpNG CUA THAY

DQNG CUA TRO

1. Md dau
- GV gidi thieu mon hgc
2. Bai nidi
a. HD1 : Thuc hanh each thd sau

Budc 1 : Lam viec theo cap

Budc 2 : Lam viec ca ldp

- HS QS hinh ve trong SGK
- 1 en hoi 1 em tra ldi
- 1 so cap HS len bang hoi dap


ecu quan ho hap la gi
va chut nang timg bo phan cua co quan
- GV giup HS hieu

ho hap _

GVKL : Co quan ho hap la co quan there hien sir trao doi kill gitra co the va moi
tmdfng ben ngoai. Co quan ho hap gom : mui, kin quan, phe quan va hai la pho .
Mui, kill quan va phe quan la during din kill. Hai la phoi co cln'rc nang trao doi Is
IV Cung co. dan do
- GV nhan xet tiet hoc
- Ve nha on lai bai

!

s


Hid Sinh

76uif - 'Jrtituj 'Jifat hoe 76op '7hanh


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..

1. Kiem tra bai cu
- Ke ten cac bo phan cua co quan ho hap - Mui, khf quan, phe quan, hai la phoi
2. Bai i noi
a. HD1 : Thao luan nliom __
* Muc tieu : Giai thfch dugc tai sao ta nen thd bang mui ma klidn g nen thd bang
mieng
* Cach tien hanh _
- Cac em nhin tliay gi trong mui
- Klii bi so mui, em thay co

I*

y guong ra soi QS 16 mui cua

- HS tra ldi
hai 16 mui ?
- Hang ngay dung khan sac
trong mui, em tha'y tren khan co ;i ?
- Tai sao tlidjljang mui td't hon thd bang
mieng
* GVKL : Tlid bang mui la hgp ve sinh, co lgi cho sire khoe, vi vay chung ta nen
thd bang ipBi
b. HD2 : Lam viec vdi SGK
* Muc tieu : Noi dugc fch lgi cua viec lift thd khong khf trong lanh va tac hai cua
viec hit thd khong khf co nhieu khoi bui doi vdi she khoe
* Cach tien hanh


I

||Tuan 2||
TIT NHIEN VA XA HOI


®f« Sink 7(tni - 'Joan*} TTiiii ho* 7(op 7hank ®

Bai 3 : VE SINH

HO

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I. MUC TIEU
- Sau bai hoc HS biet neu fch lgi cua viec tap thb buoi sang
- Ke ra nhtrng viec nen lam va khong nen lam de gitr ve sinh
- Gitr sach mui hong

co quan ho hi

II. DO DUNG
GV : Hinh ve trong SGKtrang 8, 9
III. CAC HO AT DONG DAY- HOC CHU YEU

*I

HOAT DpNG CUA THAY


- niilt nlliÿ'dan lau sach mui va stic

hoi

mieng bang nirbc muoi de tranh bi
nhiSm trimg cac bo phan cua co quan
ho hap tren
- GV nhde nhb HS nen co thoi quen tap
the due buoi sang va co y thtre gitr ve
sinli mui hgng
b. HD2 : Tlrao luan theo cap
* Muc tieu : K6 ra drrgc nhtrng viec nen lam va khong nen lam de gitr ve sinli co
quan ho hap
* Cach tien hanh
- QS H9 theo nhom doi tra lbi cau hoi
+ Bubc 1 : Lam viec theo cap
- Chi va noi ten cac viec nen va khong
nen lam de bao ve va gitr ve sinh co
quan ho hap
- HS trinh bay, mbi HS phan tfch 1 tranh
+ Bubc 2 : Lam viec ca lbp
- Yeu cau HS len he trong cube song, ke
ra nhtrng viec nen lam va co the lam
drrgc de bao ve va gitr ve sinh co quan
ho hap. Neu nhtrng viec cac em co the


Oiut Sinh

JCm/ - 'Ji'O’ntf ’TTiin hoe 7(op 'Thanh ®

- Sau bai hoc HS ke dupe 1 so benh dubng ho hap thubng gap
- Neu duoc nguyen nhan va each de phong benh dubng ho hap
- Co y thuc phong benh dubng ho hap
II. DO DUNG
GV : Cac hinh ve SGK trang 10, 11
HS : SGK
III. CAC HO AT DONG DAY- HOC CHU YEU
A
HOAT DONG CUA THAY

-

CUA TRO

1. Kiem tra bai cu
- Hhng ngay, chung ta nen lam gi de giu
xe »an
ve sinh mui, hong ?
I
2. Bai mbi
a. HD1 : dong nao
hap thubng gap
* Muc tieu : Ke ten mot so be
* Cach tie'n hanh :
- Ke ten cac bo phan c«a fohuan ho hap - Mui, kill quan, phe quan, hai la phoi
da hoc b bai trubc
- KAten 1 benh dubng (id hap ma em
-HS ke
biet
b. HD2 : Lam viec vbi SGK


76uif - 'Jrtituj 'Jifat hoe 76op '7hanh

rJi

* Muc tieu : Giup HS cung co nhiing kien tln'rc da hoc duoc ve phong benh viem
dirdng ho hap
* Cach tien hanh :
+ Budc 1 : GV HD
- 1 HS dong vai benh nhan
- 1 HS dong vai bac si
- HS choi tln'r trong nhom
+ Budc 2 : To cln'rc cho HS choi
- 1 cap len dong vai benh nhi
ic
- Ca 16p xem gop y bo sung.
IV CUNG CO, DAN DO
- GV nhan xet gib hoc
- Ve nlia xem lai bai
-

I,

I


®f« Sink 7(tni - 'Joany TTiiii ho* 7(op 7hank ®

If
>|


HOAT DpNG CUA THAY

1. Kiem tra bai cu

- Viem mui, v|
va viem plibi.

7

he quan
thubng gap ?
2. Bai mdi
a. HD1 : Lam viec vdi SGK
ai cua benh lao phoi
* Muc tieu : Neu nguyen nhan, dubng 11ÿ
* Cach tien hank :
- Nhom trubng dieu khien nhom minh
+ Bubc 1 : Lam viec theo nhom nho
QS H 1, 2, 3, 4, 5 trang 12
- Nguyen nlran gay benh lamrtJiilfciJiU" - Phan cong hai ban doc lbi thoai giua
- Benli lao phoi co bieu hien nhu the nao bac si va benh nlran
- Benh lao phoi co the; lay tir ngubi benh
sang ngubi lanh bang con dubng nao ?
- Benh lao plibi gly ra tac hai gi doi vbi
she khoe cua ban than ngubi benh va
nhung ngubi sung quanh ?
+ Dai dien nhom len trinh bay
- Cac nhom kliac bo sung gop y
+ Bubc 2 : lam viec ca lbp


* Muc tieu : Biet noi vbi bo me khi ban than co nhirng dau hieu bi mac benh dirbng
ho hap de dugc di kham va chtra benh kip tlibi
* Cdch tien hanh :
+ Buoc 1 : Nhan nlviem vu va chuan bi
trong nhdm
- M6i nhom nhan 1 trong 2 tinh huong
- GV neu tinh huong neu bi 1 trong cac
tren thao luan, dong vai trong nhom
benh dircmg ho hap, em se no gi vbi bo
me de bo meh dira di kham benh ?
- Kiri dirge dira di kham benh, em se noi
gi vbi bac si ?
- Cac nhom len trinh bay trubc lbp
+ Budc 2 : Trinh dibn
* GVKL : Khi bi sot, met moi, chung ta can phai noi ngay vbi b6' me de dirge dira
di kham benh kip thbi. Klii den gap bac si, chung ta phai noi ro xem ininli bi dau b
dau de bac si chuan doan dung benh, neu co benh phai uong thuoc du lieu theo don
cua bac si.
Ki ir
IV CUNG CO, DAN DO
- GV nhan xet tiet hg
re hgc tbt
- Khen nliirng HS co ;

I

I

TL NHIEN VA XA HOl

1. Kiem tra bai cu
- Nguyen nhan gay benh lao phoi la gi ? - HS tra
- Benh lao phoi co bieu hien nlnr the nao
?
I
2. Bai mdi
a. HD1 : OS va thao luan
an l phan cua mau va cln'rc nang cua huyet
* Muc tieu : trinh bay dirqc sor lirqc
tuan hoan
cau do. Neu dirqc cln'rc nang cua co
* Cach tien hanh I il
n 1
- HS QS hinh ve 1, 2, 3 trang 14 + QS
+ Buoc 1 : Lam viec theo nliom
o'ng mau dirqc chong dong - thao luan
- Ban da bi dut tay hay trfiy aa bao gicf
nliom
chira Khi bi dut tay hoac tray da ban
nhin thay gi b vet thircmg ?
- Tlieo ban, khi mau bi chay ra khoi co
*()nfe haY *a dac ?
- QS mau da dirqc chong dong trong o'ng
nghiem ban thay mau dirqc chia lam
may phan ? Do la nhtrng phan nao ?
- QS huyet cau do b H3, ban thay huyet
cau do co hinh dang nlnr the nao ? No co
cln'rc nang gi ?
- Co quan van chuyen mau di khap co
the co ten la gi ?

c. HD3 : Choti tro choti tiep she
* Muc tieu :Hieu dupe mach mau di tdti moi co quan cua co the
* Cach tie'n hanh :
- HS chia lam 2 dpi co so ngircti
+ Btfdc 1 : GV HD HS choi
nhau
2
Buoc
:
+
- HS choti tro choi
rL
- GV ket luan va tuyen drrong dpi thang

A

h|'de tat ca
* GVKL : NhP co cac mach mau dem mau den moi bp pha
cac co quan cua co the co du chat dinlr drrong va o-xL at fioMdong. Dong thoi , mau
cung co clu'rc nang chuyen cho khi cac-bo-nic va chat thai cua cab co quan trong co
the den phoi va than de thai chung ra ngoai.
IV CUNG CO, DAN DO
>1
- GV nhan xet tiet hoc
- Khen nhtrng HS co y time

I

I


tra lcri
- Mau gom nhung thanlr phan nao
- Co quan tuan hoan gom nln/ng
2. Bai mdi
a. HD1 : Time hanh
* Muc tieu : Biet nghe nhip dap cua tim va dein nhip mach dap
* Cdch tien hanh :
+ Birdfc 1 : Lam \(iec ca ldp
- 1 so HS len lam mSu
- GV HD HS : ap tai vao ngrre cua ban
de nghe tim dap va dem so nhip dap cua
tim trong 1 phut
- Dat ngon tro va ngon giira cua ban tay
phai len co tay trai cua minh hoac cua
ban dein so nhip mach dap trong 1 phut
- Tung cap HS there hanh nhrr HD
+ Buoc 2 : lam viec theo cap
viec
ca
lam
ldp
+ Buoc 3 :
- HS tra lcri cau hoi
- Cac em da nghe thay gi klri ap tai vao
ngrre cua ban minh ?
- Kiri dat may dau ngon tay len co tay
minh hoac tay ban, em cam thay gi ?
* GVKL : Tim luon dap de bom mau di khdp co the. Neil tim ngrmg dap, mau
kliong luu thong deroc trong cac mach mau, co the se chet.
b. HD2 : Lam viec vdi SGK

c. HD3 : Choi trd choi ghep chu~ vao hinh
Ini rong tuan hoan
* Muc tieu : Cimg co kien thirc d
* Cach fieri hanh
in i
+ Budc 1 : GV phat mdi nhc
- Cac nhdm thi dua ghep chir vao hinlr
do choi gom so do hai vong
iau cua
phieu rdi ghi ten cac loai ma
2 vong tuan hoinll I
- Nhdm nao song trudc dan san pham
+ Budc 2 : Cac nhdm choi
cua minh len trrrdc
- Nhan xet khen nhdm ban

m
,P+

'

IV. CLING CO, DAN DO
nhan xet tie't hoc
U w - Ve nha on bai

U I- *V


Oiut Sinh


Ion tren so d6

fin

HOAT DpNG CUA TRO
- 2, 3 HS len bang
- Nhan xet ban

chi

__ roi tro choi van dong __
* Muc tieu : So sanh dirge mire do lam viec cua dm khi choi dua qua sue hay lam
viec nang nhgc vdi luc co the dirge nghie ngoi, thir gian
* Cach tien hank :
- HS choi tro choi : Con tho an co, uong
+ Budc 1 :
nude, vao hang
- Cac em co cam thay nlrip dm va mach
- Nhan xet sir thay doi nlrip dap cua dm
cua minh nhanli hon luc chung ta ngoi
sau m6i tro choi
yen kliong ?
+ Bubc 2 : GV cho HS choi tro choi doi - HS choi tro choi
hoi van dong nliieu
- HS thao luan tra ldi
- So sanh nhip dap cua dm va mach khi
van dong manh vdi khi van dgng nhe
hoac khi nghi ngoi _
* GVKU : Khi ta van dong manh hoac lao dong chan tay thi nhip dap cua dm va
mach nhanh hon binh thirdng. Vi vay, lao dgng va vui choi rat co lgi cho hoat dong

- Dai dien nhom len trinh bay
+ Buoc 2 : Lam via
* Muc tieu : Ke dupe ten mot vai benli ve dm mach
* Cach tien hanh
- Ke ten mot benh tim mach ma em biet
- HS ke
?
b. HD2 : Dong vai
* Muc tieu : Neu dupe su nguy hiem va nguyen nhan gay ra benh thap tim b tre em
* Cach tie'n hanh
- HS QS SGK
+ Budc 1 : lam viec ca nhan
- Doc 16d hoi dap cua timg nhan vat
trong cac hinh
+ Budc 2 : lam viec theo nhom
- HS thao luan nhom va tra lbi cau hoi
- b Ida tuoi nao thubng hay mdc benh
thap tim ?
- Benh thap tim nguy hiem nhu the nao ?
- Nguyen nhan gay ra benh thap tim la
- Cac nhom sung phong dong vai dua


®f« Sink 7(tni - 'Joany TTiiii ho* 7(op 7hank ®

theo cac nhan vat trong hinh 1, 2, 3
gi?
- Nhan xet ban
+ Elide 3 : Lam viec ca lbp
* GVKL : Thap tim la mot benh ve tim mach b lira tuoi HS thirbng mdc. Benh nay
de lai di trung nang ne cho van tim, cuoi cimg gay suy tim


ai giir am phong tat ca cac benh , nhat la benh thap
co the, an ubngldu chat, giir |ve sinh ca nlran tim.
tot, ren luyen than the- hang ngayde tranh
benh viem hong, viem a-mi-dan keo dai
hoac viem khbp oap...
4. Cung co Dan do
VN bn bai tot
He thong bai

1

-

-Nlran xet tiet hoc

* Dan do: Nlhic nlib h/s

-


Hid Sinh

76uif - 'Jrtituj 'Jifat hoe 76op '7hanh

rJi

I,

I
TUNHIEN VA XA HOl

Hoat dong 1:

Quan sat va thao luan

a-Muc tieu: Ke diroc ten cac bo phan
cua co quan bai tiet nude tieuva neu
chu’c nang cua chung.

b-Cach tien hanh
Bl: Lam viec theo cap
GY yeu clu 2hs cimg quan sat.

HS quan sat tranh hinh 1 (22) va
than, ong din nude tieu,. ..
Vai em neu ket qua .

B2: Lam viec ca ldp
GV treo hinh co quan bai tiet nude tieu
phong to len bang yeu cau hoc sinh len
chi va noi ten cac bo phan cua co quan
bai tiet nude tieu.
*Ket luan: Co quan bai tiet nud|, (id
gom 2 qua than, 2 ong din nude
bong dai va ong dai
Hoat dong 2:
a-Muc tieu: Quan sat .tianh va tim duqc
Chu’c nang cua ca quan bai tiet.
b-Cach tien hanh:
i clu HS Quan sat tranh va
Bl:- GV

lien quan den bo phan bai tiet..
+Nudc tieu duqc dua xuong bong dai
blng dudng nao?
+Trudc khi thai ra ngoai, nude tieu duqc
cln'ra d dlu?
+Nudc tieu duqc thai ra ngoai blng
dudng nao?
+Moi ngay moi ngudi thai ra ngoai bao
nhieu lit nude tieu?
- HS thao luan va tra ldi trude ldp timg
B3:Thao luan ca ldp
clu hoi theo gqi y:
- Nude tieu duqc tao ra tir cac chat thai
doc hai co trong mau trong qua trinh bai
tiet.
- Trong nude tieu co nhung chat can ba.
- Nude tieu dua xuong bong dai blng
hai ong din nude tieu.
- Trude khi dua ra ngoai nude tieu, nude
tieu duqc cln'ra d bong dai


Oiut Sinh

JCm/ - 'Jcontf ’TTiin hoe 7(op 'Thanh ®

- Duoc dua ra ngoai qua ong dai.
*Ket luan:
+Than co chut nang loc mau, lay ra cac
chat thai doc hai co trong mau tao thanh - Vai em neu lai ket luan.


II/ DO DUNG DAY- HOC
Ill/

:

- Cac hinh SGK trang 24, 25.
- Hinh co quan bai tiet nude tieu phong to.
DAY - HOC
HOAT

D0NG

HOAT DpNG CUA THAY

I

HOAT DpNG CUA TRO

]


®f« Sink 7(tni - 'Joan*} TTiiii ho* 7(op 7hank ®

1- Kiein tra
- Hay ke ten cac bo phan cua co quan
bai tiet nirbc tieu?
- Neu cln'rc nang cua cua co quan bai tiet
nirbc tieu?
- Nhan xet, danh gia bai h/s.


ii

MI

IW1!

-HS tra lbi.
-Nhan xet, bo xung.

Thao luan ca lap

'

- HS thao Inn theo ca r.
- Yeu cau mot so cap len trinli bay ket

qua thao luan.
- Nhbm khac nhan xet.

1 LHTT1"
- Nhdc lai ket luan.
Quan sat va thao luan

- Cac cap quan sat tranh va tra lbi cac

cau hoi.
Dai dien nhbm neu ket qua trubc lbp.
Lbp bo xung
- Vai em

III. CAC HOAT DONG DAY- HOC CHU YEU: