3-s.geometrik chiziqlar.1-d.
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3-sinf fan nomi:matematika mavzu:geometrik chiziqlar.to`g`ri chiziq. 5-bob.1-dars 1 dars shiori: matematika fanlar ichra shoh, uning sirlaridan bo`laylik ogoh! o`tilganlarni mustahkamlash: sinf ishi toʻg‘ri chiziq alifbodagi kichik harflar bilan belgilanadi: a, b, c, d, e, ... bitta nuqtadan bir nechta toʻg‘ri chiziq oʻtkazish mumkinligi 4 to`g`ri burchak o`tmas burchak 1-kuni – 1 m 45 cm 2-kuni – 1 m 55 cm 4 m 3-kuni – ? 1-usul: 1) 1 m 45 cm + 1 m 55 cm = 2 m 100 cm = 3 m; 2) 4 m – 3 m = 1 m; 2-usul: 1) 1 m = 100 cm; 2) 1 m 45 cm + 1 m 55 cm = 145 cm + 155 cm = 300 cm = …
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