Boshlang'ich sinflarda matematika o'qitish metodikasi
T e n g lik v a t e n g s iz lik la m i o ‘q itis h m e to d ik a s i
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T e n g lik v a t e n g s iz lik la m i o ‘q itis h m e to d ik a s i
1. Sonli tenglik va tengsizliklami о ‘q it ish metodikasi Y a n g i d a s tu r b o ‘y ic h a o ‘q u v c h ila rg a s o n la m i ta q q o s la s h , ifo d a la rn in g < , > , = e k a n lig i m u n o s a b a tla rin i b e r is h m a q s a d id a a n a s h u s a v o lla r b ila n ta n is h tiris h m u h im o ‘r in e g a lla y d i. Ik k ita te n g s o n y o k i ik k ita ifo d a n in g q iy m a tla ri te n g b o ‘lsa, u la r o r a s ig a te n g b e lg i q o ‘y ila d i. S h u n in g d e k , ik k i s o n te n g boM m asa, y o k i ik k i if o d a v a u la m in g q iy m a tla ri te n g b o ‘lm a sa , b o ‘la r o r a s ig a te n g s iz lik b e lg is i q o ‘y ila d i. S h u n in g u c h u n e n g a v - v a lo o ‘q u v c h ila r g a is h o n c h li te n g lik v a te n g s iz lik la r h a q id a tu s h u n - c h a b e r is h k e ra k . T e n g lik v a te n g s iz lik b ila n ta n is h tiris h s o n la m i ra q a m la s h va a rif m e tik a m a lla r b ila n b o g i a n g a n . S o n la m i ta q q o s la s h erig a v v a lo , t o ‘p la m la m i ta q q o s la s h b ila n , y a ’n i t o ‘p la m la m in g b ir q iy m a tli m o s lig ig a b o g ‘la b tu s h u n tira d i. 10 , 100 , 1000 ichida- s o n la m i r a q a m la s h v a ta q q o s la s h o rq a li q u y i s in fla rd a te n g lik v a te n g s iz lik t u s h u n c h a la ri k e ltirib c h iq a rila d i. M is o l. 75 > 4 8 d e g a n d a 7 ta o ‘n lik 4 ta o ‘n lik d a n k a tta d e g a n m a z m u n d a tu s h u tirila d i. M iq d o rla m i o M ch ash d a g i s o n la m i ta q q o s la s h d a b ir x il m iqdor~ la rg a s o n la m i k e ltirib , k e y in ta q q o s la s h m u m k in lig i 1-4 s in f la rd a b e rila d i. M iso l. 1) te n g s o n la r b ila n alm ash tirin g : 7 k m 5 0 0 m = ... m , 3 0 8 0 k g ... t. 2 ) y o z u v t o ‘g ‘ri b o i i s h i u c h u n s o n la m i ta n la n g : ...s o a t < ...m in , ...d m = ... sm , ...t > ....s. = ... kg. 3 ) s h u n d a y ism li s o n la m i q o ‘y in g k i, te n g lik y o k i te n g s iz lik t i g ‘r i b o i s i n : 35 k m = 3 5 0 0 0 ..., 16 m in > ... se k , 17 t 5 s = 175 0 0 . 230 4 ) te n g s iz lik la m in g t o 'g r i y o k i n o to ‘g lri e k a n lig ig a q a ra b so n la r o r a s ig a b e lg ila r q o ‘y in g . 4 t 8 s ... 4 8 0 0 kg; 100 m in ... 1 so a t 5 0 m in; 2 m 5 d m ... 2 5 0 sm . 1 -s in f d a a m a lla m i 10 ic h id a b a ja r is h d a te n g lik v a te n g s iz lik - la rg a k o ‘p ro q t o ‘x ta la d i. M is o l. 3 + 1 > 3 , 3-1 < 3, 3 = 3 v a h o k a z o . S h u ta rz d a b o s h la n g N c h n in g y u q o r i s in f la rid a o ‘tilg a n te n g la m a la m i v a te n g s iz lik la m i u m u m la s h tirib , a = b , a > b , a < b k a b i x u lo s a la m i k e ltir ib c h iq a ra d i. E n d i s o n li ifo d a d la m ig te n g lig i v a te n g s iz lig ig a q a d a m q o ‘y ila d i. M is o l. 6 + 4 > 6 + 3 , (1 2 0 :3 + 4 ) < 12-6 2. Tenglamalami o'qitish metodikasi B o s h la n g N c h s i n f d a s tu rid a 7 + x = 1 0 , x -3 = 10 5, x • (7 -1 0 )= 7 0 , x :2 = 1 5 k a b i 1 -d a ra ja li b ir n o m a ’lu m li te n g la m a la r q a ra la d i. B u te n g la m a la m i y e c h is h a m a ld a q a tn a s h a y o tg a n h a rfn in g sh u n d a y q iy m a tin i to p is h k e ra k k i, u n i te n g la m a g a q o ‘y g a n d a r o s t te n g lik h o s il boM sin. B u n d a y te n g la m a n i y e c h is h a m a l k o m p o n e n ti b ila n a m a l n a tija s i o ra s id a g i b c g M an ish n i o ‘q itis h m e to d ik a s id a n fo y d a la n ila d i: 1 . T a y y o rlo v b o s q ic h id a 10 ic h id a q o ‘sh is h v a a y iris h d a g i n o m a ’lu m k o m p o n e n tn i to p is h g a do ir. M is o l. 4 + ... = 6 , 5 -... = 2, ....-3 = 7. 2 . S h u n g a d o ir s o d d a m a s a la la r y e c h is h . M is o l. N o m a ’lu m s o n g a 3 n i q o ‘s h ib , 8 h o s il q ilin d i. N o m a ’lu m q o ‘s h ilu v c h in i to p in g + 3 = 8 . S h u n d a n s o ‘n g n o m a ’ lu m n i h a r f b ila n b e lg ila s h n i o ‘rg a ta d i. к + 3 = 8 3. B o s h la n g ‘ich sin fd a te n g la m a n in g tarifi, y ec h im i, y e c h ish kabi ta ’r i f v a tu sh u n c h a la r b e rilm a y d i, fa q a t te n g la m a n i o ‘q ish , y o zish , n o m a ’lu m k o m p o n e n tla m i to p ish tu sh u n c h a la ri b ila n tan ish ad ilar. 4 . 2 -s in fd a k o ‘p a y tir is h v a b o i i s h g a d o ir x -3 = 1 2 , 5 x = 1 0 , x :2 = 4 , 6 : x = 3 k o ‘r in is h d a g i te n g la m a la m i y e c h is h o ‘q itila d i. 5. T e n g la m a n i o ‘q itis h n in g 1 -q a d a m id a y o q n o m a ’lu m n in g o ‘m ig a q o ‘y is h b ila n te n g lik n i te k s h ir is h g a o ‘r g a tib b o rila d i. 6 . 2 - s in f d a u la rd a n m u ra k k a b ro q x + 1 0 = 8 0 - 7 , x + ( 4 5 - 1 7 )4 0 k a b i te n g la m a la m i y e c h is h g a o ‘q itila d i. 7. 3 - s in f d a n b o s h la b 4 a m a lg a d o ir m is o lla r y e c h ila d i. 231 8 . 4 -s in fd a k o ‘p x o n a li s o n la r b ila n b irg a lik d a 4 a m a lg a d o ir te n g la m a la m i y e c h is h g a h a m o ‘rg a tila d i. 9. 2 -s in f d a n b o s h la b a + 2 6 < 3 0 , a + 2 6 = 3 0 , a + 2 6 > 3 0 ifo d a la r q u y id a g i q a n d a y q iy m a td a o ‘r in li, d e g a n ja d v a l b ila n m is o l b e rila d i: a 0 1 3 4 5 6 a + 2 6 2 6 3 2 10. B oshlangM ch sin fd a x + x = 10, n • n = 16, a + a = a + 6 , 7 • a= 7 , 8 • к = 0 , n + n = 2 n k a b i m is o lla r b a ja rilm a y d i. Download 7.79 Mb. Do'stlaringiz bilan baham: |
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