{"id":2723,"date":"2021-10-14T21:26:38","date_gmt":"2021-10-14T14:26:38","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=2723"},"modified":"2021-10-14T22:11:06","modified_gmt":"2021-10-14T15:11:06","slug":"boi-va-uoc-cua-mot-so-nguyen-huong-dan-giai-bai-tap-toan-lop-6","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/boi-va-uoc-cua-mot-so-nguyen-huong-dan-giai-bai-tap-toan-lop-6\/","title":{"rendered":"B\u1ed9i v\u00e0 \u01b0\u1edbc c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean \u2013 H\u01b0\u1edbng d\u1eabn gi\u1ea3i b\u00e0i t\u1eadp to\u00e1n l\u1edbp 6"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ed9i v\u00e0 \u01b0\u1edbc c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean l\u00e0 v\u1ea5n \u0111\u1ec1 g\u00e2y nhi\u1ec1u nh\u1ea7m l\u1eabn nh\u1ea5t trong <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n<\/a> l\u1edbp 6. H\u00f4m nay, h\u00e3y t\u1ed5ng h\u1ee3p l\u00fd thuy\u1ebft v\u1ec1 b\u1ed9i v\u00e0 \u01b0\u1edbc. \u0110\u1ed3ng th\u1eddi h\u01b0\u1edbng d\u1eabn c\u00e1c em <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc sinh<\/a> gi\u1ea3i c\u00e1c b\u00e0i t\u1eadp trong s\u00e1ch gi\u00e1o khoa to\u00e1n l\u1edbp 6 nh\u00e9!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ed5ng h\u1ee3p l\u00fd thuy\u1ebft b\u1ed9i v\u00e0 \u01b0\u1edbc c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ed5ng h\u1ee3p l\u00fd thuy\u1ebft b\u1ed9i v\u00e0 \u01b0\u1edbc c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1edbi a, b \u20ac \u2124 v\u00e0 b \u2260 0. Ta c\u00f3 c\u00e1c kh\u00e1i ni\u1ec7m sau:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu a = bq (q \u2260 0). Ta c\u00f3: a chia h\u1ebft cho b. K\u00fd hi\u1ec7u: a \u205d b (\u0111\u1ecdc l\u00e0: a chia h\u1ebft cho b)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu a = bq (q \u2260 0). Ta n\u00f3i: a l\u00e0 b\u1ed9i c\u1ee7a b. Ho\u1eb7c ng\u01b0\u1ee3c l\u1ea1i, b l\u00e0 \u01b0\u1edbc c\u1ee7a a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u00fa \u00fd:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1edbi ph\u00e9p t\u00ednh tr\u00ean: a = bq (q \u2260 0), ta c\u00f3 a : b = q. Nh\u01b0 v\u1eady, ta c\u00f3 a l\u00e0 s\u1ed1 chia, chia cho s\u1ed1 b\u1ecb chia b. \u0110\u01b0\u1ee3c th\u01b0\u01a1ng l\u00e0 q. Ta n\u00f3i: a chia \u0111\u01b0\u1ee3c cho b.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1edbi m\u1ecdi s\u1ed1 nguy\u00ean kh\u00e1c 0, lu\u00f4n t\u1ed3n t\u1ea1i \u00edt nh\u1ea5t 1 b\u1ed9i l\u00e0 s\u1ed1 0.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ed1 0 kh\u00f4ng l\u00e0 \u01b0\u1edbc c\u1ee7a b\u1ea5t k\u1ef3 s\u1ed1 0 n\u00e0o. Nh\u01b0 v\u1eady, ta kh\u00f4ng c\u00f3 ph\u00e9p t\u00ednh a : 0.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1edbi m\u1ecdi s\u1ed1 nguy\u00ean, lu\u00f4n t\u1ed3n t\u1ea1i \u00edt nh\u1ea5t 2 \u01b0\u1edbc l\u00e0 1 v\u00e0 -1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">a v\u00e0 b s\u1ebd c\u00f9ng s\u1edf h\u1eefu chung 1 \u01b0\u1edbc l\u00e0 c. N\u1ebfu c l\u00e0 \u01b0\u1edbc c\u1ee7a a, \u0111\u1ed3ng th\u1eddi l\u00e0 \u01b0\u1edbc c\u1ee7a b. Ta n\u00f3i: c l\u00e0 \u01b0\u1edbc chung c\u1ee7a a v\u00e0 b.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh ch\u1ea5t c\u1ee7a b\u1ed9i v\u00e0 \u01b0\u1edbc c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh ch\u1ea5t c\u1ee7a b\u1ed9i v\u00e0 \u01b0\u1edbc c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u1ef1a theo t\u00ednh ch\u1ea5t b\u1eafc c\u1ea7u, ta c\u00f3:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">a \u205d b, b \u205d c =&gt; a \u205d c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ta ph\u00e1t bi\u1ec3u nh\u01b0 sau: N\u1ebfu t\u1ed3n t\u1ea1i m\u1ed9t s\u1ed1 nguy\u00ean a chia h\u1ebft cho m\u1ed9t s\u1ed1 nguy\u00ean b. V\u00e0 s\u1ed1 nguy\u00ean b chia h\u1ebft cho m\u1ed9t s\u1ed1 nguy\u00ean c. Th\u00ec ta c\u00f3 theo t\u00ednh ch\u1ea5t b\u1eafc c\u1ea7u: s\u1ed1 nguy\u00ean a s\u1ebd chia h\u1ebft cho s\u1ed1 nguy\u00ean c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5 minh h\u1ecda cho t\u00ednh ch\u1ea5t tr\u00ean, ta c\u00f3 th\u1ec3 x\u00e9t t\u1edbi ph\u00e9p t\u00ednh v\u1edbi c\u00e1c s\u1ed1 c\u1ee5 th\u1ec3:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">100 \u205d 50 v\u00e0 50 \u205d 2. V\u1eady 100 \u205d 2<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ed9i s\u1ed1 c\u1ee7a a lu\u00f4n chia h\u1ebft cho b n\u1ebfu a chia h\u1ebft cho b.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ta c\u00f3 c\u00f4ng th\u1ee9c: V\u1edbi m\u1ecdi a, b, m \u20ac \u2124, n\u1ebfu a \u205d b th\u00ec am \u205d b (v\u1edbi am l\u00e0 b\u1ed9i s\u1ed1 c\u1ee7a a)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ta c\u00f3 n\u1ebfu a v\u00e0 b l\u1ea7n l\u01b0\u1ee3t \u0111\u1ec1u chia h\u1ebft cho c th\u00ec x\u00e9t t\u1ed5ng a+b hay hi\u1ec7u a-b \u0111\u1ec1u chia h\u1ebft cho c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ta c\u00f3 c\u00f4ng th\u1ee9c: V\u1edbi m\u1ecdi a, b, m \u20ac \u2124, n\u1ebfu a \u205d c v\u00e0 \u0111\u1ed3ng th\u1eddi b \u205d c. Th\u00ec (a+b) \u205d c v\u00e0 (a-b) \u205d c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01b0\u1edbng d\u1eabn gi\u1ea3i b\u00e0i t\u1eadp b\u1ed9i v\u00e0 \u01b0\u1edbc c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i 101 (trang 97 SGK To\u00e1n 6 T\u1eadp 1):<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01b0\u1edbng d\u1eabn gi\u1ea3i b\u00e0i t\u1eadp b\u1ed9i v\u00e0 \u01b0\u1edbc c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i 102 (trang 97 SGK To\u00e1n 6 T\u1eadp 1):<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01b0\u1edbng d\u1eabn gi\u1ea3i b\u00e0i t\u1eadp b\u1ed9i v\u00e0 \u01b0\u1edbc c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i 103 (trang 97 SGK To\u00e1n 6 T\u1eadp 1):<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01b0\u1edbng d\u1eabn gi\u1ea3i b\u00e0i t\u1eadp b\u1ed9i v\u00e0 \u01b0\u1edbc c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i 104 (trang 97 SGK To\u00e1n 6 T\u1eadp 1):<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01b0\u1edbng d\u1eabn gi\u1ea3i b\u00e0i t\u1eadp b\u1ed9i v\u00e0 \u01b0\u1edbc c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i 105 (trang 97 SGK To\u00e1n 6 T\u1eadp 1):<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01b0\u1edbng d\u1eabn gi\u1ea3i b\u00e0i t\u1eadp b\u1ed9i v\u00e0 \u01b0\u1edbc c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i 106 (trang 97 SGK To\u00e1n 6 T\u1eadp 1):<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01b0\u1edbng d\u1eabn gi\u1ea3i b\u00e0i t\u1eadp b\u1ed9i v\u00e0 \u01b0\u1edbc c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ea1o cho con tinh th\u1ea7n <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc t\u1eadp<\/a> t\u1ed1t, t\u1ef1 tin chinh ph\u1ee5c to\u00e1n l\u1edbp 6<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00ed quy\u1ebft \u0111\u1ec3 h\u1ecdc t\u1ed1t to\u00e1n h\u1ecdc kh\u00f4ng ch\u1ec9 \u0111\u1ed1i v\u1edbi to\u00e1n l\u1edbp 6. M\u00e0 c\u00f2n l\u00e0 b\u1ed9 m\u00f4n to\u00e1n trung h\u1ecdc ph\u1ed5 th\u00f4ng n\u00f3i chung l\u00e0 s\u1ef1 t\u1eadp trung. Tuy nhi\u00ean, m\u1ea5t t\u1eadp trung l\u1ea1i l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 g\u00e2y kh\u00f3 kh\u0103n cho c\u1ea3 nh\u1eefng <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc sinh<\/a> xu\u1ea5t s\u1eafc nh\u1ea5t. \u0110\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y, gi\u00fap c\u00e1c con n\u00e2ng cao tr\u00ecnh \u0111\u1ed9 to\u00e1n h\u1ecdc. Vietlearn t\u1ed5ng h\u1ee3p m\u1ed9t v\u00e0i b\u00ed quy\u1ebft d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Thay \u0111\u1ed5i <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc<\/a> t\u1eadp<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">Ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc<\/a> t\u1eadp kh\u00f4ng ph\u00f9 h\u1ee3p c\u00f3 th\u1ec3 l\u00e0 nguy\u00ean nh\u00e2n quan tr\u1ecdng g\u00e2y ra vi\u1ec7c m\u1ea5t t\u1eadp trung c\u1ee7a con. Tr\u00ean th\u1ef1c t\u1ebf, ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng nhi\u1ec1u nh\u1ea5t l\u00e0 \u0111\u1ecdc. Th\u00f4ng th\u01b0\u1eddng, khi mu\u1ed1n h\u1ecdc m\u1ed9t d\u1ea1ng to\u00e1n hay m\u1ed9t l\u01b0\u1ee3ng ki\u1ebfn th\u1ee9c m\u1edbi. C\u00e1c em h\u1ecdc sinh th\u01b0\u1eddng c\u00f3 xu th\u1ebf m\u1edf s\u00e1ch v\u1edf ra v\u00e0 \u0111\u1ecdc. \u0110\u00f3 l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p hay, kh\u00f4ng t\u1ed1n qu\u00e1 nhi\u1ec1u th\u1eddi gian. Cung c\u1ea5p ki\u1ebfn th\u1ee9c ch\u00ednh x\u00e1c v\u00e0 \u0111em l\u1ea1i k\u1ebft qu\u1ea3 ngay l\u1eadp t\u1ee9c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, kh\u00f4ng n\u00ean l\u1ea1m d\u1ee5ng qu\u00e1 nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc t\u1eadp n\u00e0y. V\u00ec nh\u01b0 v\u1eady, n\u00e3o b\u1ed9 kh\u00f4ng \u0111\u01b0\u1ee3c l\u00e0m quen v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc t\u1eadp kh\u00e1c nhau. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 g\u00e2y ra c\u1ea3m gi\u00e1c nh\u00e0m ch\u00e1n v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng t\u1eadp trung c\u1ee7a tr\u1ebb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mu\u1ed1n kh\u1eafc ph\u1ee5c \u0111i\u1ec1u n\u00e0y, c\u00e1c con n\u00ean thay \u0111\u1ed5i ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc t\u1eadp th\u01b0\u1eddng xuy\u00ean. V\u00ed d\u1ee5, c\u00e1c con c\u00f3 th\u1ec3 th\u1eed ph\u01b0\u01a1ng ph\u00e1p l\u1eafng nghe, xem video clip, ghi ch\u00e9p,\u2026<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Thay \u0111\u1ed5i ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc t\u1eadp<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c ph\u1ea7n th\u01b0\u1edfng cho s\u1ef1 n\u1ed7 l\u1ef1c c\u1ee7a con trong h\u1ecdc t\u1eadp<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng \u0111i\u1ec1u gi\u00fap c\u00e1c con c\u00f3 th\u00eam tinh th\u1ea7n \u0111\u1ec3 h\u1ecdc t\u1eadp ch\u00ednh l\u00e0 \u0111\u1ed9ng l\u1ef1c. \u0110\u1ed9ng l\u1ef1c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1eb1ng nhi\u1ec1u c\u00e1ch th\u1ee9c. Tuy nhi\u00ean, theo m\u1ed9t s\u1ed1 kh\u1ea3o s\u00e1t v\u00e0 hi\u1ec7u qu\u1ea3 khi \u00e1p d\u1ee5ng. C\u00e1ch t\u1eb7ng qu\u00e0, th\u01b0\u1edfng cho con ch\u00ednh l\u00e0 c\u00e1ch tr\u1ef1c ti\u1ebfp v\u00e0 mang l\u1ea1i \u0111\u1ed9ng l\u1ef1c t\u1ed1t nh\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1c \u0111\u1ed9ng t\u00edch c\u1ef1c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi h\u1ea7u h\u1ebft tr\u1ebb nh\u1ecf, \u1edf \u0111\u1ed9 tu\u1ed5i t\u1eeb 10 \u2013 11 tu\u1ed5i l\u00e0 khi c\u00e1c con \u0111\u00e3 h\u00ecnh th\u00e0nh n\u00ean s\u1edf th\u00edch ri\u00eang. B\u00ean c\u1ea1nh \u0111\u00f3 l\u00e0 nhu c\u1ea7u v\u1ec1 nh\u1eefng \u0111i\u1ec1u m\u1edbi l\u1ea1. Bi\u1ec3u hi\u1ec7n l\u00e0 con hay \u0111\u00f2i b\u1ed1 m\u1eb9 mua cho m\u1ed9t s\u1ed1 m\u00f3n \u0111\u1ed3. Ho\u1eb7c xin ti\u1ec1n \u0111\u1ec3 th\u1ecfa m\u00e3n nh\u1eefng nhu c\u1ea7u c\u00e1 nh\u00e2n. N\u1ebfu v\u1eady, ba m\u1eb9 h\u00e3y \u0111\u1eb7t ra m\u1ee5c ti\u00eau cho con. V\u00e0 ph\u1ea7n th\u01b0\u1edfng n\u1ebfu con \u0111\u1ea1t \u0111\u01b0\u1ee3c nh\u1eefng m\u1ee5c ti\u00eau \u0111\u00f3 l\u00e0 nh\u1eefng th\u1ee9 con th\u00edch. C\u00f3 th\u1ec3 l\u00e0 quy\u1ec3n s\u00e1ch, \u0111\u1ed3 ch\u01a1i,\u2026 Hay \u0111\u01a1n gi\u1ea3n l\u00e0 h\u1ee9a h\u1eb9n cho con m\u1ed9t bu\u1ed5i \u0111i ch\u01a1i xa n\u1ebfu con ti\u1ebfn b\u1ed9 trong h\u1ecdc t\u1eadp.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c ph\u1ea7n th\u01b0\u1edfng cho s\u1ef1 n\u1ed7 l\u1ef1c c\u1ee7a con trong h\u1ecdc t\u1eadp<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1c \u0111\u1ed9ng ti\u00eau c\u1ef1c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c t\u1ea1o ra \u0111\u1ed9ng l\u1ef1c cho con b\u1eb1ng c\u00e1ch t\u1eb7ng nh\u1eefng ph\u1ea7n qu\u00e0 l\u00e0 m\u1ed9t c\u00e1ch hay. Tuy nhi\u00ean, trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, n\u00f3 mang l\u1ea1i nh\u1eefng t\u00e1c \u0111\u1ed9ng ti\u00eau c\u1ef1c. V\u00ed d\u1ee5 nh\u01b0 khi\u1ebfn c\u00e1c con n\u1ea3y sinh t\u00ednh \u0111\u00f2i h\u1ecfi. Ho\u1eb7c s\u1ebd khi\u1ebfn c\u00e1c con tho\u00e1i th\u00e1c tr\u00e1ch nhi\u1ec7m, ngh\u0129 r\u1eb1ng vi\u1ec7c h\u1ecdc l\u00e0 mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch cho ba m\u1eb9 ch\u1ee9 kh\u00f4ng ph\u1ea3i h\u1ecdc v\u00ec b\u1ea3n th\u00e2n m\u00ecnh. V\u00ec v\u1eady, ba m\u1eb9 n\u00ean ti\u1ebft ch\u1ebf trong c\u00e1ch t\u1eb7ng qu\u00e0 hay th\u01b0\u1edfng cho con. B\u00ean c\u1ea1nh nh\u1eefng m\u00f3n qu\u00e0 mang gi\u00e1 tr\u1ecb v\u1eadt ch\u1ea5t. C\u1ea7n truy\u1ec1n t\u1ea3i nh\u1eefng n\u1ed9i dung nh\u00e2n v\u0103n cho con hi\u1ec3u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 tr\u1ebb, nh\u1eefng m\u00f3n qu\u00e0 v\u1eadt ch\u1ea5t s\u1ebd kh\u00f4ng c\u00f3 t\u00e1c d\u1ee5ng k\u00edch th\u00edch tinh th\u1ea7n con. \u0110i\u1ec1u c\u0103n b\u1ea3n v\u1eabn l\u00e0 \u1edf nh\u1eefng ng\u01b0\u1eddi cha, ng\u01b0\u1eddi m\u1eb9. Cha m\u1eb9 n\u00ean quan t\u00e2m nhi\u1ec1u h\u01a1n \u0111\u1ebfn \u0111\u1eddi s\u1ed1ng tinh th\u1ea7n c\u1ee7a con. Quan tr\u1ecdng h\u01a1n c\u1ea3 v\u1eadt ch\u1ea5t \u0111\u00f3 l\u00e0 ni\u1ec1m vui c\u1ee7a tr\u1ebb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1eddi k\u1ebft:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00ean \u0111\u00e2y l\u00e0 t\u1ed5ng h\u1ee3p l\u00fd thuy\u1ebft v\u00e0 h\u01b0\u1edbng d\u1eabn gi\u1ea3i b\u00e0i t\u1eadp ch\u1ee7 \u0111\u1ec1 B\u1ed9i v\u00e0 \u01b0\u1edbc c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean cho c\u00e1c em h\u1ecdc sinh l\u1edbp 6. B\u00ean c\u1ea1nh \u0111\u00f3, Vietlearn c\u0169ng \u0111\u01b0a ra m\u1ed9t v\u00e0i b\u00ed quy\u1ebft nh\u1ecf gi\u00fap c\u00e1c con t\u1eadp trung t\u1ed1t h\u01a1n, n\u00e2ng cao n\u0103ng l\u1ef1c h\u1ecdc to\u00e1n. \u0110\u1ec3 bi\u1ebft th\u00eam nhi\u1ec1u b\u00ed quy\u1ebft h\u01a1n. M\u1eddi ph\u1ee5 huynh v\u00e0 c\u00e1c con tham kh\u1ea3o th\u00eam c\u00e1c b\u00e0i vi\u1ebft kh\u00e1c c\u1ee7a Vietlearn trong m\u1ee5c to\u00e1n<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn B\u1ed9i v\u00e0 \u01b0\u1edbc c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean l\u00e0 v\u1ea5n \u0111\u1ec1 g\u00e2y nhi\u1ec1u nh\u1ea7m l\u1eabn nh\u1ea5t trong ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n l\u1edbp 6. H\u00f4m nay, h\u00e3y t\u1ed5ng h\u1ee3p l\u00fd thuy\u1ebft v\u1ec1 b\u1ed9i v\u00e0 \u01b0\u1edbc. \u0110\u1ed3ng th\u1eddi h\u01b0\u1edbng d\u1eabn c\u00e1c em h\u1ecdc sinh gi\u1ea3i c\u00e1c b\u00e0i t\u1eadp trong s\u00e1ch gi\u00e1o khoa to\u00e1n [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[9,4],"tags":[],"class_list":["post-2723","post","type-post","status-publish","format-standard","hentry","category-toan-hoc","category-trung-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/2723","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=2723"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/2723\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=2723"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=2723"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=2723"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}