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1-Mavzu: Natural son tushunchasi
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| bet | 11/90 | | Sana | 03.01.2024 | | Hajmi | 5,91 Mb. | | #129663 |
Bog'liq 7-sinf 2018 algebraa+b-c+d=a+(b-c+d)
a-b-c+d=a-(b+c-d)
Mustahkamlash
55-masala.
1) 4-3-7=-6 2) -4+(-9+11)=-2 3) (-a)+(-7b)+(1/3)c=-a-7b+(1/3)c
4) 2a+(-3b)-4c=2a-3b-4c
57-masala.
1) a-b+c=a+(-b)+c 2) 2+b-c=2+b+(-c)
3) a-2-b=a+(-2)+(-b) 4) 3+a-b-c=3+a+(-b)+(-c)
58-masala.
1) a+(2b-3c)= a+2b-3c 2) a-(2b-3c)= a-2b+3c
3) a-(2b+3c)= a-2b-3c 4) –(a-2b+3c)= -a+2b-3c
59-masala.
1) a+(b-(c-d))=a+b-c+d 2) a-(b-(c-d))=a-b+c-d
3) a-((b-c)-d)=a-b+c+d 4) a-(b+(c-(d-k)))=a-b-c+d-k
60-masala.
1) 3a-(a+2b)=3a-a-2b=2a-2b 2) 5x-(2y-3x)=5x-2y+3x=8x-2y
3) 3m-(5m-(2m-1))=3m-5m+2m-1=-1 4) 4a+(2a-(3a+3))=4a+2a-3a-3=3a-3
Baholash:
Uyga vazifa: 61-62 masala
O’IBDO’:
Sana: Sinf:
11-Mavzu: Qavslarni ochish qoidalari.
Darsning maqsadi:
Ta’limiy: Qavslarni ochish qoidalarini misol va masala yechishda qo’llay olish
Tarbiyaviy: Olingan bilimlarni xayotda qo’llay olish. O’quvchilarni o’zaro xurmat ruhida tarbiyalash
Rivojlantiruvchi: O`quvchilarning xotirasini shakllantirish, dunyoqarashini kengaytirish
Tayanch kompetensiyalar:
Axborot bilan ishlash kompetensiya elementi: mavzu doirasida ko’rsatilgan multimedia ilovalariga ongli munosabat bildirish.
Fanga oid kompetensiyalar: o‘rganilgan matematik tushunchalarni va qoidalarni tushuntirib bera oladi, tegishli misollar keltira oladi; ifodalarning yig‘indisi, ko‘paytmasini o‘z ichiga olgan formulalar bo‘yicha aniq va taqribiy arifmetik hisob-kitoblarni va ayniy almashtirishlarni bajara oladi.
Dars turi: olingan bilim, malaka, ko’nikmalarni rivojlantiruvchi
Dars jihozi: darslik, konspekt, ko’rgazmali qurollar, tarqatma materiallar
Tashkiliy qism:
Salomlashish
Navbatchi axborotini tinglash
Otilgan mavzular yuzasidan savol-javob o’tkazish
Uy vazifasini tekshirish
Asosiy qism
61-masala.
1) a+2b+m-c=a+2b+(m-c) 2) a-2b+m+c=a+2b+(m+c)
3) a-m+3c+4d=a+(-m+3c+4d) 4) a-m+3b2-2a3=a+(-m-3b2+2a3)
62-masala.
1) 2a+3b+m-c=2a+3b-(-m+c) 2) 2a+b+m+3c=2a+b-(-m-3c)
3) c-m-2a+3b2=c-(m+2a-3b2) 4) a-m+3b2-2a3=a-(m-3b2+2a3)
Mustahkamlash
63-masala.
1) a+(b-1) 2) a-(b-1) 3) 2a-(b-4) 4) (a-2b)+8
64-masala.
1) 2x2+5x2y-4xy2-y3=2x2-(-5x2y)-4xy2-y3
2) 2x2+5x2y+(-4xy2-y3) 3) 2x2-((-5x2y)+4xy2)-y3 4) -2x2-(-5x2y)-4xy2-y3
66-masala.
1) (5a-2b)-(3b-5a)=5a-2b-3b+5a=10a-b 2) (6a-b)-(2a+3b)=6a-b-2a-3b=4a-5b
3) 7x+3y-(-3x+3y)=7x+3y+3x-3y=10x 4) 8x-(3x-2y)-5y=8x-3x+2y-5y=5x-3y
67-masala.
1) (2x+1)+3x=16 2x+3x+1=16 5x=15 x=3
2) (x-4)+(x+6)=4 x+x-4+6=4 2x=2 x=1
3) (x-5)-(5-3x)=2 x+3x-5-5=2 4x=2 x=0,5
4) 23-(x+5)=13 23-5-x=13 x=18-13 x=5
68-masala.
1) (2c+5d)-(c+4d)=2c-c+5d-4d=c+d=0,4+0,6=1
2) (3a-4b)-(2a-3b)=3a-2a-4b+3b=a-b=0,12-1,28=-1,16
3)
4) (5c-6b)-(3c-5b)=5c-3c-6b+5b=2c-b=2∙(-0,25)-2,5=-0,5-2,5=-3
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