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)
Tóm t t lý thuy t và Gi i bài ắ ế ả t pậ Toán l p ớ6: Làm quen v i s nguyênớ ố
âm
A. Tóm t t ki n th c bàiắ ế ứ : Làm quen v i s nguyên âmớ ố
1. S nguyên âm:ố
Trong th c t ng i ta còn dùng nh ng s nguyên v i d u tr đ ng tr c. Ch ng h n,ự ế ườ ữ ố ớ ấ ừ ứ ướ ẳ ạ
nhi t đ mùa đông đ nh M u S n có khi xu ng t i -2ệ ộ ở ỉ ẫ ơ ố ớ oC. S t nhiên v i d u trố ự ớ ấ ừ
đ ng tr c g i là s nguyên âm.ứ ướ ọ ố
2. Tr c s :ụ ố
Ta bi u di n các s nguyên âm trên tia đ i c a tia s . Khi đó ta đ c m t tr c ể ễ ố ố ủ ố ượ ộ ụ
Nh v y m t tr c s là m t đ ng th ng trên đó đã ch n đi m 0 g i là đi m g c,ư ậ ộ ụ ố ộ ườ ẳ ọ ể ọ ể ố
th ng ch n chi u t trái sang ph i làm chi u d ng và m t đ n v đ dài, m i s tườ ọ ề ừ ả ề ươ ộ ơ ị ộ ỗ ố ự
nhiên đ c bi u di n b i m t đi m bên ph i đi m 0, m i s nguyên âm đ c bi uượ ể ễ ở ộ ể ở ả ể ỗ ố ượ ể
di n b i m t đi m bên trái đi m 0.ễ ở ộ ể ở ể
B. H ng d n gi i bài t p SGK trang 68 bài: Tìm hi u s nguyên âm – Toán 6 t p 1.ướ ẫ ả ậ ể ố ậ
Bài 1 trang 68 SGK Toán 6 t p 1 – S h cậ ố ọ
Hình 35 minh h a m t ph n các nhi t k (tính theo đ C):ọ ộ ầ ệ ế ộ
a) Vi t và đ c nhi t đ các nhi t k .ế ọ ệ ộ ở ệ ế
b) Trong hai nhi t k a và b, nhi t đ nào cao h n?ệ ế ệ ộ ơ