{"id":2755,"date":"2021-10-14T21:30:45","date_gmt":"2021-10-14T14:30:45","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=2755"},"modified":"2021-10-14T22:10:15","modified_gmt":"2021-10-14T15:10:15","slug":"thu-thap-so-lieu-thong-ke-tan-so-tong-hop-ly-thuyet","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/thu-thap-so-lieu-thong-ke-tan-so-tong-hop-ly-thuyet\/","title":{"rendered":"Thu th\u1eadp s\u1ed1 li\u1ec7u th\u1ed1ng k\u00ea t\u1ea7n s\u1ed1 \u2013 T\u1ed5ng h\u1ee3p l\u00fd thuy\u1ebft"},"content":{"rendered":"\n<p>Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn<\/p>\n\n\n\n<p>Thu th\u1eadp s\u1ed1 li\u1ec7u th\u1ed1ng k\u00ea, t\u1ea7n s\u1ed1 l\u1edbp 7 l\u00e0 ph\u1ea7n h\u1ecdc kh\u00e1 kh\u00f3 hi\u1ec3u v\u00e0 ph\u1ee9c t\u1ea1p. N\u1ebfu <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc sinh<\/a> kh\u00f4ng hi\u1ec3u v\u00e0 n\u1eafm \u0111\u01b0\u1ee3c ki\u1ebfn th\u1ee9c s\u1ebd gi\u1ea3i d\u1ea1ng b\u00e0i t\u1eadp n\u00e0y r\u1ea5t kh\u00f3 kh\u0103n. B\u00e0i t\u1ed5ng h\u1ee3p v\u00e0 h\u1ec7 th\u1ed1ng ki\u1ebfn th\u1ee9c c\u1ee7a Vietlearn d\u01b0\u1edbi \u0111\u00e2y s\u1ebd gi\u00fap \u00edch cho <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc sinh<\/a> v\u00e0 c\u00e1c ph\u1ee5 huynh hi\u1ec3u v\u00e0 n\u1eafm ch\u1eafc ki\u1ebfn th\u1ee9c tr\u1ecdng t\u00e2m c\u1ee7a b\u00e0i h\u1ecdc.<\/p>\n\n\n\n<p>L\u00fd thuy\u1ebft Thu th\u1eadp s\u1ed1 li\u1ec7u th\u1ed1ng k\u00ea, t\u1ea7n s\u1ed1 \u2013 To\u00e1n l\u1edbp 7<\/p>\n\n\n\n<p>Ki\u1ebfn th\u1ee9c c\u1ea7n nh\u1edb<\/p>\n\n\n\n<p>M\u1ed9t s\u1ed1 d\u1ea1ng b\u00e0i t\u1eadp th\u01b0\u1eddng g\u1eb7p<\/p>\n\n\n\n<p>Gi\u1ea3i b\u00e0i t\u1eadp Thu th\u1eadp s\u1ed1 li\u1ec7u th\u1ed1ng k\u00ea, t\u1ea7n s\u1ed1 SGK<\/p>\n\n\n\n<p>B\u00e0i 1 trang 7 SGK<\/p>\n\n\n\n<p>\u0110\u1ec1 b\u00e0i t\u1eadp 1 \u2013 SGK trang 7 (t\u1eadp 2)<\/p>\n\n\n\n<p>\u0110\u00e1p \u00e1n b\u00e0i t\u1eadp 1<\/p>\n\n\n\n<p>B\u00e0i 2 trang 7 SGK<\/p>\n\n\n\n<p>\u0110\u1ec1 b\u00e0i t\u1eadp 2 \u2013 SGK trang 7 (t\u1eadp 2)<\/p>\n\n\n\n<p>\u0110\u00e1p \u00e1n b\u00e0i t\u1eadp 2<\/p>\n\n\n\n<p>B\u00e0i 3 trang 8 SGK<\/p>\n\n\n\n<p>\u0110\u1ec1 b\u00e0i t\u1eadp 3 \u2013 SGK trang 8 (t\u1eadp 2)<\/p>\n\n\n\n<p>\u0110\u00e1p \u00e1n b\u00e0i t\u1eadp 3<\/p>\n\n\n\n<p>B\u00e0i 4 trang 9 SGK<\/p>\n\n\n\n<p>\u0110\u1ec1 b\u00e0i t\u1eadp 4 \u2013 SGK trang 9 (t\u1eadp 2)<\/p>\n\n\n\n<p>\u0110\u00e1p \u00e1n b\u00e0i t\u1eadp 4<\/p>\n\n\n\n<p>B\u00e0i t\u1eadp v\u1eadn d\u1ee5ng \u2013 Thu th\u1eadp s\u1ed1 li\u1ec7u th\u1ed1ng k\u00ea. t\u1ea7n s\u1ed1<\/p>\n\n\n\n<p>\u0110\u1ec1 b\u00e0i:<\/p>\n\n\n\n<p>\u0110\u1ec1 b\u00e0i 1 \u2013 B\u00e0i t\u1eadp v\u1eadn d\u1ee5ng<\/p>\n\n\n\n<p>\u0110\u1ec1 b\u00e0i 2 \u2013 B\u00e0i t\u1eadp v\u1eadn d\u1ee5ng<\/p>\n\n\n\n<p>L\u1eddi gi\u1ea3i:<\/p>\n\n\n\n<p>L\u1eddi gi\u1ea3i b\u00e0i t\u1eadp 1 \u2013 B\u00e0i t\u1eadp v\u1eadn d\u1ee5ng<\/p>\n\n\n\n<p>L\u1eddi gi\u1ea3i b\u00e0i t\u1eadp 2 \u2013 B\u00e0i t\u1eadp v\u1eadn d\u1ee5ng<\/p>\n\n\n\n<p>5 c\u00e1ch h\u1ecdc Thu th\u1eadp s\u1ed1 li\u1ec7u th\u1ed1ng k\u00ea, t\u1ea7n s\u1ed1 hi\u1ec7u qu\u1ea3 t\u1ea1i nh\u00e0<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>R\u00e8n luy\u1ec7n kh\u1ea3 n\u0103ng t\u1eadp trung<\/li><\/ol>\n\n\n\n<p>Kh\u1ea3 n\u0103ng t\u1eadp trung l\u00e0 n\u1ec1n t\u1ea3ng \u0111\u1ec3 <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc t\u1eadp<\/a> m\u1ecdi th\u1ee9. Th\u1ebf nh\u01b0ng, kh\u1ea3 n\u0103ng t\u1eadp trung \u1edf <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc sinh<\/a> l\u1edbp 7 c\u00f2n kh\u00e1 y\u1ebfu v\u00e0 d\u1ec5 b\u1ecb ph\u00e2n t\u00e2m. Theo <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">chuy\u00ean gia<\/a> t\u00e2m l\u00fd, <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc sinh<\/a> c\u1ea5p THCS th\u01b0\u1eddng ch\u00fa \u00fd \u0111\u1ebfn nh\u1eefng h\u00ecnh \u1ea3nh tr\u1ef1c quan sinh \u0111\u1ed9ng, m\u00e0u s\u1eafc s\u1eb7c s\u1ee1, tr\u00f2 ch\u01a1i,\u2026 Th\u1eddi gian t\u1eadp trung ch\u1ec9 n\u00ean k\u00e9o d\u00e0i t\u1eeb 25 \u2013 30 ph\u00fat. Sau th\u1eddi gian \u0111\u00f3, <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc sinh<\/a> c\u1ea7n gi\u1ea3i lao kho\u1ea3ng 15 ph\u00fat r\u1ed3i m\u1edbi ti\u1ebfp t\u1ee5c h\u1ecdc thi vi\u1ec7c \u00f4n t\u1eadp ki\u1ebfn th\u1ee9c Thu th\u1eadp s\u1ed1 li\u1ec7u th\u1ed1ng k\u00ea, t\u1ea7n s\u1ed1 m\u1edbi c\u00f3 k\u1ebft qu\u1ea3.<\/p>\n\n\n\n<p>\u0110i\u1ec1u n\u00e0y nh\u1eb1m duy tr\u00ec v\u00e0 r\u00e8n luy\u1ec7n kh\u1ea3 n\u0103ng t\u1eadp trung c\u1ee7a h\u1ecdc THCS.<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\"><li>\u0110\u1ecdc s\u00e1ch To\u00e1n Thu th\u1eadp s\u1ed1 li\u1ec7u th\u1ed1ng k\u00ea, t\u1ea7n s\u1ed1 n\u00e2ng cao<\/li><\/ol>\n\n\n\n<p>Kh\u00f4ng ch\u1ec9 l\u00e0 ki\u1ebfn th\u1ee9c SGK, h\u1ecdc sinh c\u1ea7n b\u1ed5 sung v\u00e0 m\u1edf r\u1ed9ng ki\u1ebfn b\u1eb1ng c\u00e1c lo\u1ea1i s\u00e1ch To\u00e1n l\u1edbp 7 n\u00e2ng cao.<\/p>\n\n\n\n<p>Ki\u1ebfn th\u1ee9c trong SGK To\u00e1n l\u1edbp 7 ch\u1ec9 l\u00e0 ki\u1ebfn th\u1ee9c ph\u1ed5 th\u00f4ng. M\u00e0 trong \u0111\u1ec1 thi v\u00e0o l\u1edbp 10, nh\u1eefng c\u00e2u cao \u0111i\u1ec3m th\u01b0\u1eddng mang t\u00ednh ch\u1ecdn l\u1ecdc v\u00e0 h\u1ecdc sinh c\u1ea7n ph\u1ea3i l\u00e0m quen tr\u01b0\u1edbc trong s\u00e1ch To\u00e1n n\u00e2ng cao.<\/p>\n\n\n\n<p>\u0110\u1ecdc v\u00e0 gi\u1ea3i b\u00e0i t\u1eadp Thu th\u1eadp s\u1ed1 li\u1ec7u th\u1ed1ng k\u00ea, t\u1ea7n s\u1ed1 n\u00e2ng cao r\u1ea5t c\u1ea7n thi\u1ebft.<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\"><li>\u00d4n b\u00e0i c\u0169 To\u00e1n l\u1edbp 7<\/li><\/ol>\n\n\n\n<p>\u00d4n b\u00e0i c\u0169 l\u00e0 ho\u1ea1t \u0111\u1ed9ng c\u1ea7n thi\u1ebft h\u00e0ng ng\u00e0y c\u1ee7a m\u1ed7i h\u1ecdc sinh. \u0110i\u1ec1u n\u00e0y nh\u1eb1m r\u00e8n luy\u1ec7n th\u00f3i quen \u00f4n b\u00e0i \u1edf nh\u00e0 v\u00e0 nh\u1eafc l\u1ea1i ki\u1ebfn th\u1ee9c tr\u00ean l\u1edbp.<\/p>\n\n\n\n<p>Tuy nhi\u00ean, theo khuy\u1ebfn c\u00e1o c\u1ee7a chuy\u00ean gia, h\u1ecdc sinh ch\u1ec9 n\u00ean h\u1ecdc trong kho\u1ea3ng th\u1eddi gian 30 \u2013 45 ph\u00fat th\u00ec gi\u1ea3i lao v\u00e0 tham gia ho\u1ea1t \u0111\u1ed9ng th\u00fa v\u1ecb kh\u00e1c.<\/p>\n\n\n\n<p>Ph\u1ee5 huynh v\u00e0 h\u1ecdc sinh h\u00e3y ch\u00fa \u00fd ph\u00e2n b\u1ed1 v\u00e0 c\u00e2n b\u1eb1ng th\u1eddi gian \u00f4n t\u1eadp b\u00e0i c\u0169 ph\u00f9 h\u1ee3p. H\u00e3y lu\u00f4n d\u00e0nh th\u1eddi gian \u0111\u1ec3 gi\u1ea3i tr\u00ed v\u00e0 l\u00e0m nhi\u1ec1u vi\u1ec7c h\u1eefu \u00edch kh\u00e1c b\u00ean c\u1ea1nh h\u1ecdc t\u1eadp. M\u1ed9t s\u1ed1 ho\u1ea1t \u0111\u1ed9ng gi\u1ea3i lao quan tr\u1ecdng h\u1ecdc sinh c\u1ea7n c\u00f3 nh\u01b0: c\u1eadp nh\u1eadt tin t\u1ee9c, ho\u1ea1t \u0111\u1ed9ng th\u1ec3 thao, \u0111\u1ecdc s\u00e1ch,\u2026<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"4\"><li>Ch\u00fa tr\u1ecdng r\u00e8n luy\u1ec7n th\u1ec3 ch\u1ea5t<\/li><\/ol>\n\n\n\n<p>V\u1eadn \u0111\u1ed9ng c\u00f3 vai tr\u00f2 \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong ph\u00e1t tri\u1ec3n t\u01b0 duy n\u00e3o b\u1ed9. M\u1ed9t nghi\u00ean c\u1ee9u \u0111\u0103ng tr\u00ean T\u1ea1p ch\u00ed Brain Research n\u0103m 2010 \u0111\u00e3 \u0111\u01b0a ra th\u1ef1c t\u1ebf, h\u1ecdc sinh v\u1eadn \u0111\u1ed9ng nhi\u1ec1u h\u01a1n s\u1ebd c\u00f3 v\u00f9ng \u0111\u1ed3i th\u1ecb (hippocampus) l\u1edbn h\u01a1n.<\/p>\n\n\n\n<p>Nghi\u00ean c\u1ee9u kh\u00e1c \u0111\u0103ng tr\u00ean T\u1ea1p ch\u00ed Developmental Review n\u0103m 2009 k\u1ebft lu\u1eadn r\u1eb1ng, nh\u1eefng h\u1ecdc sinh c\u00f3 th\u1ec3 ch\u1ea5t t\u1ed1t s\u1ebd th\u1ef1c hi\u1ec7n c\u00e1c ho\u1ea1t \u0111\u1ed9ng t\u01b0 duy t\u1ed1t h\u01a1n.<\/p>\n\n\n\n<p>Nhi\u1ec1u k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u kh\u00e1c ch\u1ee9ng minh, ho\u1ea1t \u0111\u1ed9ng th\u1ec3 ch\u1ea5t l\u00e0 ho\u1ea1t \u0111\u1ed9ng th\u01b0 gi\u00e3n v\u00e0 gi\u1ea3m c\u0103ng th\u1eb3ng t\u1ed1t nh\u1ea5t.<\/p>\n\n\n\n<p>H\u01a1n n\u1eefa, vi\u1ec7c \u00f4n t\u1eadp ki\u1ebfn th\u1ee9c trong t\u00ecnh tr\u1ea1ng m\u1ec7t m\u1ecfi v\u00e0 c\u0103ng th\u1eb3ng s\u1ebd kh\u00f4ng mang l\u1ea1i nhi\u1ec1u k\u1ebft qu\u1ea3. \u0110\u00f4i khi, t\u00ecnh tr\u1ea1ng n\u00e0y s\u1ebd mang l\u1ea1i t\u00e1c d\u1ee5ng ng\u01b0\u1ee3c l\u1ea1i. Nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p h\u1ecdc sinh \u0111\u00e3 ph\u1ea3i nh\u1eadp vi\u1ec7n v\u00ec \u00f4n t\u1eadp ki\u1ebfn th\u1ee9c qu\u00e1 m\u1ee9c v\u00e0 \u0111\u1ec3 l\u1ea1i nhi\u1ec1u \u1ea3nh h\u01b0\u1edfng x\u1ea5u sau n\u00e0y.<\/p>\n\n\n\n<p>Do \u0111\u00f3, b\u00ean c\u1ea1nh vi\u1ec7c ch\u00fa tr\u1ecdng c\u00e1c ho\u1ea1t \u0111\u1ed9ng r\u00e8n luy\u1ec7n tr\u00ed \u00f3c, c\u00e1ch d\u1ea1y h\u1ecdc To\u00e1n l\u1edbp 7 \u1edf nh\u00e0 hi\u1ec7u qu\u1ea3 l\u00e0 c\u1ea7n ch\u00fa tr\u1ecdng r\u00e8n luy\u1ec7n th\u1ec3 ch\u1ea5t.<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"5\"><li>H\u1ecdc gia s\u01b0 To\u00e1n l\u1edbp 7 t\u1ea1i nh\u00e0<\/li><\/ol>\n\n\n\n<p>N\u1ebfu ph\u1ee5 huynh ch\u01b0a y\u00ean t\u00e2m v\u1edbi nh\u1eefng c\u00e1ch th\u1ee9c tr\u00ean v\u00e0 con \u0111ang b\u1ecb h\u1ed5ng nhi\u1ec1u ki\u1ebfn th\u1ee9c Thu th\u1eadp s\u1ed1 li\u1ec7u th\u1ed1ng k\u00ea, t\u1ea7n s\u1ed1, thu\u00ea gia s\u01b0 d\u1ea1y To\u00e1n l\u1edbp 7 t\u1ea1i nh\u00e0 l\u00e0 ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7u qu\u1ea3 nh\u1ea5t. Tuy nhi\u00ean, ph\u1ee5 huynh n\u00ean ch\u1ecdn gia s\u01b0 uy t\u00edn, gi\u1ea3ng d\u1ea1y hay. Tr\u00e1nh nh\u1eefng gia s\u01b0 k\u00e9m v\u00e0 l\u1eeba \u0111\u1ea3o m\u00e0 b\u00e1o ch\u00ed \u0111\u00e3 ph\u1ea3n \u00e1nh nhi\u1ec1u.<\/p>\n\n\n\n<p>Vietlearn l\u00e0 kh\u00f3a h\u1ecdc gia s\u01b0 To\u00e1n online l\u1edbp 7 ch\u1ea5t l\u01b0\u1ee3ng, \u0111\u01b0\u1ee3c nhi\u1ec1u ph\u1ee5 huynh v\u00e0 c\u01a1 quan b\u00e1o ch\u00ed \u0111\u00e1nh gi\u00e1 cao. ch\u00fang t\u00f4i cam k\u1ebft 100% h\u1ecdc sinh h\u1ecdc t\u1ed1t To\u00e1n h\u1ecdc v\u00e0 \u0111\u1ea1t \u0111i\u1ec3m s\u1ed1 cao, v\u1edbi chi ph\u00ed online ti\u1ebft ki\u1ec7m nh\u1ea5t.<\/p>\n\n\n\n<p>\u0110\u0103ng k\u00fd h\u1ecdc tr\u1ea3i nghi\u1ec7m, l\u1edbp h\u1ecdc To\u00e1n l\u1edbp 7 online mi\u1ec5n ph\u00ed cho con ngay t\u1ea1i Vietlearn.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>C\u00f3 th\u1ec3 b\u1ea1n quan t\u00e2m: 7 c\u00e1ch d\u1ea1y con h\u1ecdc l\u1edbp 5 t\u1ea1i nh\u00e0 \u2013 kh\u00f4ng thua k\u00e9m b\u1ea1n b\u00e8<\/p><\/blockquote>\n\n\n\n<p>Vietlearn \u2013 Ch\u01b0\u01a1ng tr\u00ecnh h\u1ecdc tr\u1ef1c tuy\u1ebfn hi\u1ec7u qu\u1ea3<\/p>\n\n\n\n<p>Vietlearn l\u00e0 c\u00f4ng ty Edtech v\u1ec1 gi\u00e1o d\u1ee5c tr\u1ef1c tuy\u1ebfn, cung c\u1ea5p tr\u1ea3i nghi\u1ec7m v\u00e0 b\u1ed3i d\u01b0\u1ee1ng h\u1ecdc t\u1eadp c\u00e1 nh\u00e2n cho h\u00e0ng tr\u0103m ngh\u00ecn h\u1ecdc sinh v\u00e0 nh\u00e0 tr\u01b0\u1eddng trong kh\u1ed1i ki\u1ebfn th\u1ee9c K-12 c\u1ee7a ch\u01b0\u01a1ng tr\u00ecnh gi\u00e1o d\u1ee5c.<\/p>\n\n\n\n<p>Vietlearn kh\u00f4ng ch\u1ec9 l\u00e0 kh\u00f3a h\u1ecdc \u201cthu th\u1eadp s\u1ed1 li\u1ec7u th\u1ed1ng k\u00ea, t\u1ea7n s\u1ed1\u201d online, ch\u00fang t\u00f4i \u1ee9ng d\u1ee5ng v\u00e0 mang \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m tri th\u1ee9c tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o (AI) v\u00e0 d\u1eef li\u1ec7u l\u1edbn (h\u00e0ng \u0111\u1ea7u \u0110\u00f4ng Nam \u00c1) \u0111\u1ebfn v\u1edbi h\u1ecdc sinh Vi\u1ec7t Nam. Vietlearn mong mu\u1ed1n t\u1ea1o ra m\u00f4i tr\u01b0\u1eddng c\u00f4ng ngh\u1ec7 gi\u00fap c\u00e1c em ph\u00e1t huy \u0111i\u1ec3m m\u1ea1nh v\u00e0 say m\u00ea trong h\u1ecdc t\u1eadp.<\/p>\n\n\n\n<p>B\u1ed3i d\u01b0\u1ee1ng, truy\u1ec1n c\u1ea3m h\u1ee9ng v\u00e0 truy\u1ec1n l\u1eeda h\u1ecdc t\u1eadp cho th\u1ebf h\u1ec7 tr\u1ebb lu\u00f4n l\u00e0 s\u1ee9 m\u1ec7nh c\u1ed1t l\u00f5i kh\u00f4ng thay \u0111\u1ed5i c\u1ee7a Vietlearn.<\/p>\n\n\n\n<p>M\u00f4 h\u00ecnh gi\u00e1o d\u1ee5c v\u00e0 \u0111\u1ed9i ng\u0169 gi\u00e1o vi\u00ean c\u1ee7a Vietlearn \u0111\u01b0\u1ee3c nhi\u1ec1u t\u1ed5 ch\u1ee9c v\u00e0 c\u01a1 quan b\u00e1o ch\u00ed \u0111\u00e1nh gi\u00e1 ch\u1ea5t l\u01b0\u1ee3ng h\u00e0ng \u0111\u1ea7u Vi\u1ec7t Nam.<\/p>\n\n\n\n<p>Ch\u00fang t\u00f4i cam k\u1ebft 100% h\u1ecdc sinh vui h\u1ecdc to\u00e1n l\u1edbp 7 v\u00e0 \u0111\u1ea1t k\u1ebft qu\u1ea3 h\u1ecdc t\u1eadp cao, v\u1edbi chi ph\u00ed ti\u1ebft ki\u1ec7m nh\u1ea5t.<\/p>\n\n\n\n<p>H\u1ecdc To\u00e1n l\u1edbp 7 l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh, h\u1ecdc sinh kh\u00f4ng n\u00ean qu\u00e1 n\u00f3ng v\u1ed9i, b\u1eaft \u00e9p con g\u1ed3ng m\u00ecnh h\u1ecdc t\u1eadp qu\u00e1 m\u1ee9c hay bu\u1ed3n phi\u1ec1n v\u00ec h\u1ecdc ch\u1eadm. B\u1edfi ch\u00fang ta c\u1ea7n th\u1eddi gian \u0111\u1ec3 th\u00edch nghi v\u1edbi m\u00f4i tr\u01b0\u1eddng v\u00e0 ki\u1ebfn th\u1ee9c To\u00e1n l\u1edbp 7 r\u1ea5t m\u1edbi. Hy v\u1ecdng b\u00e0i t\u1ed5ng h\u1ee3p ki\u1ebfn th\u1ee9c \u201cThu th\u1eadp s\u1ed1 li\u1ec7u th\u1ed1ng k\u00ea, t\u1ea7n s\u1ed1\u201d tr\u00ean \u0111\u00e2y h\u1eefu \u00edch v\u1edbi b\u1ea1n \u0111\u1ecdc. C\u1ea3m \u01a1n v\u00ec \u0111\u00e3 ch\u1ecdn Vietlearn.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>C\u00e1ch d\u1ea1y con h\u1ecdc l\u1edbp 1 \u1edf nh\u00e0 hi\u1ec7u qu\u1ea3 \u2013 Vi\u1ebft v\u00e0 l\u00e0m t<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn Thu th\u1eadp s\u1ed1 li\u1ec7u th\u1ed1ng k\u00ea, t\u1ea7n s\u1ed1 l\u1edbp 7 l\u00e0 ph\u1ea7n h\u1ecdc kh\u00e1 kh\u00f3 hi\u1ec3u v\u00e0 ph\u1ee9c t\u1ea1p. N\u1ebfu h\u1ecdc sinh kh\u00f4ng hi\u1ec3u v\u00e0 n\u1eafm \u0111\u01b0\u1ee3c ki\u1ebfn th\u1ee9c s\u1ebd gi\u1ea3i d\u1ea1ng b\u00e0i t\u1eadp n\u00e0y r\u1ea5t kh\u00f3 kh\u0103n. B\u00e0i t\u1ed5ng h\u1ee3p v\u00e0 h\u1ec7 th\u1ed1ng ki\u1ebfn th\u1ee9c c\u1ee7a Vietlearn d\u01b0\u1edbi [&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],"tags":[],"class_list":["post-2755","post","type-post","status-publish","format-standard","hentry","category-toan-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/2755","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=2755"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/2755\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=2755"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=2755"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=2755"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}