1-dars sana: 9-sinf Mavzu: Molekular –kinetik nazariya haqida tushuncha Darsning maqsadi

Dars turi: yangi bilim berish darsi
Dars uslubi: an’anaviy dars, savol – javob,
Darsning jihozlanishi:

1. 
   Fotoapparat
   
2. 
   Mikroskop
   
3. 
   Teleskop
   
4. 
   Grafoproyektor
   
5. 
   Ko’zoynak
   
6. 
   Ko’z modeli
   
7. 
   Binokl
   
8. 
   Lupa
   

Dars rejasi:
1. Tashkiliy qism (3 minut).
2. O’tilgan mavzularni eslash (15 minut).
3. Yangi mavzuning bayoni (18 minut).
4. Yangi mavzuni mustahkamlash uchun savol-javoblar (5 minut).
5. O’quvchilarni baholash (4 minut)
6. Uyga vazifa berish (1 minut)
Darsning borishi:
1. Tashkiliy qism O’quvchilar bilan salomlashib, davomatni olish. Darsda kerakli bo’lgan jihozlarning tayyorligini tekshirish.
2. O’rganilgan materiallarni takrorlash
1. Linza nima?
2. Linzalar necha xil bo’ladi?
3. Linzo formulasi?
4. Linzaning optik kuchi nima?
3. Yangi mavzu bayoni:
Optik asboblarga quyidagilar kiradi:

Lupa
Proyeksion apparat
Fotoapparat
Mikroskop
Grafoproyektor

1. Lupa – fokus masofasi qisqa bo’lgan linza. Vazifasi – ko’rish burchagini orttirish. Kattalashtirish formulasi:
K=f/d K=d₀/F
K= lupaning kattalashtirilishi f – linzadan tasvirgacha bo’lgan masofa
d – buyumdan linzagacha bo’lgan masofa
d₀ – ko’zning eng yaxshi ko’rish masofasi d₀ = 25 sm
F= lupaning fokus masofasi
2. Proyeksion apparat – buyumni ekranga kattalashtirib beruvchi optik asbob.Proyeksion apparat uch xil bo’ladi: a) diaskop b) episkop v) epidiaskop
1 – yorug’lik manbai
2 – linzalar to’plami
3 - slayda
4 - ekran