7-sinf “algebra” kursida o’rganilgan mavzularni takrorlash

4. Yangi mavzuni mustahkamlash:
Tengsizlikni intervallar usuli bilan yeching (84-90):
84. 1) x₁ = -2 ; x₂ = 7
+ - +
| |
-2 7
Javob: (-;2)(7;)
2) x₁ = -5 ; x₂ = 8
+ - +
| |
-5 8
Javob: (-5;8)
3) x₁ = -1/2 ; x₂ = 2
+ - +
| |
-1/2 2
Javob: (-1/2;2)
4) x₁ = -5 ; x₂ =
+ - +
| |
-5
Javob: (-;-5)( ;)
85. 1) x(x+5)>0 ; x₁ = -5 ; x₂ = 0
+ - +
| |
-5 0
Javob: (-;-5)( 0;)
2) x(x-9)>0 ; x₁ = 0 ; x₂ = 9
+ - +
| |
0 9
Javob: (-;0)( 9;)
3) x(2x-1)<0 ; x₁ = 0 ; x₂ = 1/2
+ - +
| |
0 1/2
Javob: (0;1/2)
4) 5) 6)
86. 1) 2)
3) 4)
87. 1) 2)
3) 4)
5) 6)
88. 1) 2) 3)
4) 5) 6) .
89. 1) 2)
3) 4)
5. Darsga yakun yasash va baholash – darsning maqsadini yana bir bor eslatish va unga qanchalik erishilganligini o’quvchilar bilan birgalikda aniqlash. O’quvchilarning mavzu bo’yicha savollariga javob berish, ulaming o’zlashtirganlik darajasini aniqiash, darsning asosiy lahzalarini qayd qilish. Darsda faol qatnashgan o’quvchilarni tilga olish va baholash;
6. Uyga vazifa ________________________