# 14 mavzu Nazorat ishi 3 (2 soat)

8-sinf, geometriya.
(2 soatlik bayonnoma)
«20-22» -dekabr, 2018-yil.
Mavzu: 3-nazorat ishi.
1. Darsning maqsadi: Yuz(a), tengdosh shakllar, yuz(a)ni o‘lchash, to‘g‘ri to‘rtburchakning yuzi,
parallelogrammning yuzi, uchburchakning yuzi, ularning xossalari haqida tushunchalar hosil
qilish, o‘quvchilarning BKM larini shakllantirish, rivojlantirish va mustahkamlash hamda
tekshirish.
2. Darsning usuli: yozma ish.
3. Darsning jihozi: DTS ko‘rgazmalari, tarqatma materiallar.
DARSNING BORISHI:
1. Tashkiliy qism: o‘quvchilar bilan salomlashish, tozalikni tekshirish, davomatni aniqlash,
o‘quvchilarning dars mashg‘ulotlariga ruhiy jihatda tayyorliklarini aniqlash.
2. Yangi mavzuning bayoni: (Ikki variantdagi yozma ish matni)
1-variant.
1) To‘g‘ri to‘rtburchakning ikki tomoni 60 sm va 5,8 sm. Uning yuzini toping.
Yechilishi:
𝑆 = 𝑎 ∙ 𝑏 = 60 𝑠𝑚 ∙ 5,8 𝑠𝑚 = 340 𝑠𝑚2 ;
Javob: 𝑆 = 340 𝑠𝑚2 .
Yechilishi:
𝑆 = 𝑎2 = (1,3 𝑠𝑚)2 = 1,69 𝑠𝑚2 ;
Javob: 𝑆 = 1,69 𝑠𝑚2 .
3) To‘g‘ri burchakli uchburchakning katetlari 5 sm va 6 sm. Shu uchburchakning yuzini toping.
Yechilishi:
1
1
1) 𝑆 = 𝑎 ∙ 𝑏 = ∙ 5 𝑠𝑚 ∙ 6 𝑠𝑚 = 5 𝑠𝑚 ∙ 3 𝑠𝑚 = 15 𝑠𝑚2 ;
Javob: 𝑆 = 15 𝑠𝑚2 .
2
2
4) Parallelogrammning asosi 60 sm va balandligi 0,5 m bo‘lsa, uning yuzini toping.
Yechilishi:
𝑎 = 60 𝑠𝑚 = 0,6 𝑚 bo‘lgani uchun: 𝑎 = 0,6 𝑚, ℎ = 0,5 𝑚 deb olamiz:
𝑆 = 𝑎 ∙ ℎ = 0,6 𝑚 ∙ 0,5 𝑚 = 0,3 𝑚2 ;
Javob: 𝑆 = 0,3 𝑚2.
2-variant.
1) To‘g‘ri to‘rtburchakning ikki tomoni 4 m va 1,4 m. Uning yuzini toping.
Yechilishi:
𝑆 = 𝑎 ∙ 𝑏 = 4 𝑚 ∙ 1,4 𝑚 = 5,6 𝑚2 ;
Javob: 𝑆 = 5,6 𝑚2.
Yechilishi:
𝑆 = 𝑎2 = (250 𝑚𝑚)2 = 62 500 𝑚𝑚2;
Javob: 𝑆 = 62 500 𝑚𝑚2 .
3) To‘g‘ri burchakli uchburchakning katetlari 12 sm va 18 sm. Shu uchburchakning yuzini toping.
Yechilishi:
1
1
1) 𝑆 = 2 𝑎 ∙ 𝑏 = 2 ∙ 12 𝑠𝑚 ∙ 18 𝑠𝑚 = 6 𝑠𝑚 ∙ 18 𝑠𝑚 = 108 𝑠𝑚2;
Javob: 𝑆 = 108 𝑠𝑚2.
4) Parallelogrammning asosi 0,25 m va balandligi 100 sm bo‘lsa, uning yuzini toping.
Yechilishi:
𝑎 = 0,25 𝑚 = 25 𝑠𝑚 bo‘lgani uchun: 𝑎 = 25 𝑠𝑚, ℎ = 100 𝑠𝑚 deb olamiz:
𝑆 = 𝑎 ∙ ℎ = 25 𝑠𝑚 ∙ 100 𝑠𝑚 = 2 500 𝑠𝑚2 ;
Javob: 𝑆 = 2 500 𝑠𝑚2 .
3. Uyga vazifa: Yuz(a), tengdosh shakllar, yuz(a)ni o‘lchash, to‘g‘ri to‘rtburchakning yuzi,
parallelogrammning yuzi, uchburchakning yuzi, ularning xossalari kabi tushunchalarni
mustahkamlash uchun o‘tilgan mavzularni takrorlash, o‘qib o‘rganish va masalalar yechish.
Name:
Description:

Calculate the price
Pages (550 words)
\$0.00
*Price with a welcome 15% discount applied.
Pro tip: If you want to save more money and pay the lowest price, you need to set a more extended deadline.
We know how difficult it is to be a student these days. That's why our prices are one of the most affordable on the market, and there are no hidden fees.

Instead, we offer bonuses, discounts, and free services to make your experience outstanding.
How it works
Receive a 100% original paper that will pass Turnitin from a top essay writing service
step 1
Fill out the order form and provide paper details. You can even attach screenshots or add additional instructions later. If something is not clear or missing, the writer will contact you for clarification.
Pro service tips
One writer throughout the entire course
If you like the writer, you can hire them again. Just copy & paste their ID on the order form ("Preferred Writer's ID" field). This way, your vocabulary will be uniform, and the writer will be aware of your needs.
The same paper from different writers
You can order essay or any other work from two different writers to choose the best one or give another version to a friend. This can be done through the add-on "Same paper from another writer."
Copy of sources used by the writer
Our college essay writers work with ScienceDirect and other databases. They can send you articles or materials used in PDF or through screenshots. Just tick the "Copy of sources" field on the order form.
Testimonials
See why 20k+ students have chosen us as their sole writing assistance provider
Check out the latest reviews and opinions submitted by real customers worldwide and make an informed decision.
11,595
Customer reviews in total
96%
Current satisfaction rate
3 pages
Average paper length
37%
Customers referred by a friend