Mavzu: 4 soni

111. Yangi mavzu bayoni:

 1. Qisqa yozuv bo‘yicha masala tuzing va uni yeching:

Musiqa to‘garagida — 28 nafar o‘quvchi,

Sport to‘garagida — ?, 8 nafar kam o‘quvchi.

Yechish:     28–8=20     Javob: 20

2.

1) Uzunligi 12 sm bo‘lgan tasma oling. Uni buklash yo‘li bilan 2 ta teng qismga bo‘ling. Har qaysi qism bu tasmaning yarmi hisoblanadi. Tasmaning yarmi necha santimetr ekanini toping: 12:2=6 sm. Uni o‘lchash bilan tekshirib ko‘ring.

 

2) Tasmani buklash bilan 4 ta teng qismga bo‘ling. Shu tasmaning to‘rtdan bir qismi necha santimetr ekanini toping.

Amalda bajarishga urinib ko’ring.

3. Hisoblang:

3•9=27       4•4=16         16 : 4=4       12 : 3=4     12 : 4=3       24 : 4=6

4•5=20       3•8=24         20 : 4=5       15 : 3=5     3•8=24        4•8=32

 4. Rasm asosida masala tuzing va uni yeching:

1 vazada --- 6 dona anor

4 ta vazada — ? dona anor

Yechish: 6*4=24           Javob: 24

5. Tenglamalarni yeching:

15 + x = 37                   18 – x = 5            3•x = 21               x : 2 = 8

x=37–15                       x=18–5                x=21:3                 x=8*2

x=22                              x=13                    x=7                      x=16

15+22=37                     18–13=5              3*7=21                16:2=8

 

O’quvchilar ishini nazorat qilish qiynalgan o’quvchilarga yordam berish.