O’qituvchi: Shamsiyeva Dilnoza Baxodirovna «Tasdiqlayman» O’quv ishlari bo’yicha direktor o’rinbosari

Mavzu: Standart funksiyalar va algebraik ifodalar mavzusini takrorlash
Maqsad:
Ta’limiy: O`quvchilarga Paskal tilida standart funksiyalar va algbraik ifodalarni yozishni o`rgatish
Tarbiyaviy: o`quvchilrga iqtisodiy tejamkorlik tarbiyasi berish;
Rivojlantiruvchi: O`quvchilarda Paskal dasturlash tilida standart funksiyalar va algebraik ifodalardan foydalardan foydalanish ko`nikmalarni rivojlantirish.


DTS: Paskal tilida standart funksiyalar va algebraik ifodalarning yozilishi haqida ma’lumotga ega bo`lish.


Dars turi: Takrorlovchi
Dars o`tish metodi: Aqliy hujum, aralash, interfaol.
Dars jihozi: Tarqatma materiallar, 9-sinf darsligi, jadvallar.
Texnik jihozlar: Kompyuter, multimedia vositalari, slaydlar, proektor.


Darsning borishi:
I. Tashkiliy davr
1) salomlashish; 2) davomatni aniqlash.


II. Takrorlash

2. 
   Qanday funksiyalar standart funksiya deyiladi?
   

9. 
   Standart funksiyalarning odatdagi va Paskalda yozilishining qanday farqi bor?
   
10. 
    Algebraik ifodalar nimalardan tashkil topadi?
    
11. 
    Biror ifodada bir xil amallar qatnashsa, ularning bajarilish tartibi qanday bo‘ladi?
    
12. 
    Amallarni bajarish tartibini o‘zgartirish uchun nimalardan foydalaniladi?
    

III. Yangi mavzuni o`rganish
1. Quyidagi ifodalarni Paskal dasturlash tilida yozing.
a) ; (xy)/(x*xy*y*y); b) ; x*y/(x*x+y*y*y);
d) +sin²x; (x+y)/(x*y*z);
e) +tg⁵a³; (5*a*a+2*x)+3*x/(a*a*a)+exp(5*tg(a*a*a)).
f) sin²x³+20 sqr(sin(x*x*x))+20
g) cos³sin²x+cosa⁵ sqr(cos(sqr(sin(x)))*cos(sqr(sin(x)))+cos(sqr(sqr(a))*a)
h) ; (12*x*x-z)+(3*x-5)/(z*z*z);
i) ; sqrt(5+x)  sqrt(z)*(3*x)/(a*a*a)+exp(1*7*ln(a))

2. Quyida Paskalda yozilgan funksiyalarni qiymatini hisoblang.

a) trunc(12.5)=12; b) int(12.5)=12.0000000000*e+00 d) round(12.5)=13
e) frac(12.5)=0.5000000000e+00 f) sqr(16)=256 g) sqrt(256)=1.6000000000e+1
h) sqr(0.25)=6.2500000000e-2
i) sqrt(6.25)=2.5000000000e+00

3. Quyida Paskalda yozilgan ifodalarni qiymatini hisoblang.

a) sqr(trunc(4.95)) b) trunc(int(4.95)+0.7) d) round(trunc(3.5)+0.7) e) 3+frac(12.5)
f) sqrt(sqr(16)) g) sqrt(sqrt(256)+9) h) sqr(5–abs(–5)) i) abs(–sqrt(6))

4. a=5, b=4 bo’lsa, quyida Paskalda yozilgan ifodalarni qiymatini hisoblang.

a) abs(a+b–a*b) b) sqr(a+b–a*b)–110 d) round(a/b+0.3)+9 e) 3+frac(b/a)
f) sqrt(sqr(a)–b*b) g) sqrt(sqrt(a+b)+6) h) sqr(a–abs(b–a)) i) abs(9–sqrt(a*b+a))

5. Quyida Paskalda yozilgan ifodalar qiymati qanday turdagi o’zgarmas bo’lishini aniqlang.

a) abs(–sqrt(2011)) b) abs(sqr(2))+19 d) frac(abs(-20)) e) 20+sqrt(4)
f) random*20 g) random(4)*20 h) 23*sqrt(1) i) int(1.9)*trunc(0.2)