{"id":20007,"date":"2025-07-07T12:55:05","date_gmt":"2025-07-07T05:55:05","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=20007"},"modified":"2025-07-09T05:06:02","modified_gmt":"2025-07-08T22:06:02","slug":"toan-lop-2-hinh-hoc-cac-dang-hinh-va-mot-so-bai-tap-luyen-dem-thuong-gap","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/toan-lop-2-hinh-hoc-cac-dang-hinh-va-mot-so-bai-tap-luyen-dem-thuong-gap\/","title":{"rendered":"To\u00e1n l\u1edbp 2 h\u00ecnh h\u1ecdc: C\u00e1c d\u1ea1ng h\u00ecnh v\u00e0 m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp luy\u1ec7n \u0111\u1ebfm th\u01b0\u1eddng g\u1eb7p"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.ckconitsha.com\/vn\/toan-lop-2-hinh-hoc-cac-dang-hinh-va-mot-so-bai-tap-luyen-dem-thuong-gap\/#Lam_quen_voi_cac_hinh_thuc_hinh_hoc_trong_chuong_trinh_toan_hoc_cap_2\" >L\u00e0m quen v\u1edbi c\u00e1c h\u00ecnh th\u1ee9c h\u00ecnh h\u1ecdc trong ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n h\u1ecdc c\u1ea5p 2<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.ckconitsha.com\/vn\/toan-lop-2-hinh-hoc-cac-dang-hinh-va-mot-so-bai-tap-luyen-dem-thuong-gap\/#Tu_giac\" >T\u1ee9 gi\u00e1c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.ckconitsha.com\/vn\/toan-lop-2-hinh-hoc-cac-dang-hinh-va-mot-so-bai-tap-luyen-dem-thuong-gap\/#Quang_truong\" >Qu\u1ea3ng tr\u01b0\u1eddng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.ckconitsha.com\/vn\/toan-lop-2-hinh-hoc-cac-dang-hinh-va-mot-so-bai-tap-luyen-dem-thuong-gap\/#Hinh_chu_nhat\" >H\u00ecnh ch\u1eef nh\u1eadt<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.ckconitsha.com\/vn\/toan-lop-2-hinh-hoc-cac-dang-hinh-va-mot-so-bai-tap-luyen-dem-thuong-gap\/#Tam_giac\" >Tam gi\u00e1c<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.ckconitsha.com\/vn\/toan-lop-2-hinh-hoc-cac-dang-hinh-va-mot-so-bai-tap-luyen-dem-thuong-gap\/#Mot_so_hinh_anh_cho_hoc_sinh_lop_2\" >M\u1ed9t s\u1ed1 h\u00ecnh \u1ea3nh cho h\u1ecdc sinh l\u1edbp 2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.ckconitsha.com\/vn\/toan-lop-2-hinh-hoc-cac-dang-hinh-va-mot-so-bai-tap-luyen-dem-thuong-gap\/#Loi_khuyen_tot_lam_cho_viec_day_toan_de_dang_hon\" >L\u1eddi khuy\u00ean t\u1ed1t l\u00e0m cho vi\u1ec7c d\u1ea1y to\u00e1n d\u1ec5 d\u00e0ng h\u01a1n<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.ckconitsha.com\/vn\/toan-lop-2-hinh-hoc-cac-dang-hinh-va-mot-so-bai-tap-luyen-dem-thuong-gap\/#Di_cung_voi_tre_em\" >\u0110i c\u00f9ng v\u1edbi tr\u1ebb em<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.ckconitsha.com\/vn\/toan-lop-2-hinh-hoc-cac-dang-hinh-va-mot-so-bai-tap-luyen-dem-thuong-gap\/#Chia_khung_thoi_gian_hoc_tap\" >Chia khung th\u1eddi gian h\u1ecdc t\u1eadp<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.ckconitsha.com\/vn\/toan-lop-2-hinh-hoc-cac-dang-hinh-va-mot-so-bai-tap-luyen-dem-thuong-gap\/#Chia_kien_%E2%80%8B%E2%80%8Bthuc_de_hoc\" >Chia ki\u1ebfn \u200b\u200bth\u1ee9c \u0111\u1ec3 h\u1ecdc<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p dir=\"ltr\">Ch\u1ee7 \u0111\u1ec1 c\u1ee7a to\u00e1n h\u1ecdc h\u00ecnh h\u1ecdc c\u1ea5p 2 l\u00e0 m\u1ed9t ph\u1ea7n r\u1ea5t quan tr\u1ecdng c\u1ee7a ch\u01b0\u01a1ng tr\u00ecnh. Do \u0111\u00f3, \u0111\u1ec3 tr\u1ebb h\u1ecdc t\u1ed1t, cha m\u1eb9 c\u1ea7n ph\u1ea3i c\u00f3 ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3ng d\u1ea1y khoa h\u1ecdc. Trong b\u00e0i vi\u1ebft n\u00e0y, kh\u1ec9 s\u1ebd gi\u00fap b\u1ea1n l\u00e0m \u0111i\u1ec1u \u0111\u00f3. H\u00e3y tham kh\u1ea3o th\u00f4ng tin ch\u00fang t\u00f4i chia s\u1ebb ngay b\u00ean d\u01b0\u1edbi!<\/p>\n<p>                                    <\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Lam_quen_voi_cac_hinh_thuc_hinh_hoc_trong_chuong_trinh_toan_hoc_cap_2\"><\/span>L\u00e0m quen v\u1edbi c\u00e1c h\u00ecnh th\u1ee9c h\u00ecnh h\u1ecdc trong ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n h\u1ecdc c\u1ea5p 2<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ec3 tr\u1ebb em nghi\u00ean c\u1ee9u t\u1ed1t v\u00e0 h\u1ea5p th\u1ee5 nhanh ch\u00f3ng, tr\u01b0\u1edbc ti\u00ean ch\u00fang c\u1ea7n ph\u1ea3i l\u00e0m quen v\u1edbi m\u1ed9t s\u1ed1 h\u00ecnh h\u1ecdc. Tr\u1ebb em s\u1ebd x\u00e1c \u0111\u1ecbnh v\u00e0 ph\u00e2n bi\u1ec7t khi g\u1eb7p nh\u1eefng h\u00ecnh \u1ea3nh \u0111\u00f3. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 h\u00ecnh d\u1ea1ng trong ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n l\u1edbp 2: <\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tu_giac\"><\/span>T\u1ee9 gi\u00e1c<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">T\u1ee9 gi\u00e1c l\u00e0 m\u1ed9t \u0111a gi\u00e1c \u0111a gi\u00e1c bao g\u1ed3m 4 \u0111\u1ec9nh v\u00e0 4 c\u1ea1nh. S\u1ebd kh\u00f4ng c\u00f3 2 \u0111\u01b0\u1eddng th\u1eb3ng tr\u00ean m\u1ed9t d\u00f2ng. T\u1ee9 gi\u00e1c c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t t\u1ee9 gi\u00e1c hai b\u00ean ho\u1eb7c t\u1ee9 gi\u00e1c \u0111\u01a1n v\u00e0 c\u00f3 th\u1ec3 l\u1ed3i ho\u1eb7c l\u00f5m.<\/p>\n<p dir=\"ltr\">T\u1ee9 gi\u00e1c \u0111\u01a1n s\u1ebd kh\u00f4ng c\u00f3 m\u1ed9t c\u1eb7p c\u1ea1nh \u0111\u1ed1i di\u1ec7n. C\u00e1c t\u1ee9 gi\u00e1c k\u00e9p s\u1ebd c\u00f3 2 c\u1eb7p c\u1ea1nh \u0111\u1ed1i di\u1ec7n. T\u1ee9 gi\u00e1c l\u00f5m l\u00e0 m\u1ed9t h\u00ecnh \u1ea3nh ch\u1ee9a m\u1ed9t g\u00f3c c\u00f3 th\u01b0\u1edbc \u0111o l\u1edbn h\u01a1n 180 \u0111\u1ed9. Trong \u0111\u00f3 m\u1ed9t trong hai \u0111\u01b0\u1eddng ch\u00e9o s\u1ebd \u1edf b\u00ean ngo\u00e0i h\u00ecnh \u1ea3nh. T\u1ee9 gi\u00e1c kh\u00f4ng \u0111\u1ec1u l\u00e0 m\u1ed9t h\u00ecnh \u1ea3nh kh\u00f4ng c\u00f3 m\u1ed9t c\u1eb7p c\u1ea1nh song song v\u1edbi nhau.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/1-toan-lop-2-hinh-hoc.png\" alt=\"T\u1ee9 gi\u00e1c. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Quang_truong\"><\/span>Qu\u1ea3ng tr\u01b0\u1eddng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">H\u00ecnh vu\u00f4ng l\u00e0 m\u1ed9t t\u1ee9 gi\u00e1c \u0111\u1ec1u nhau. Trong \u0111\u00f3 4 b\u00ean c\u1ee7a h\u1ecd b\u1eb1ng nhau. Qu\u1ea3ng tr\u01b0\u1eddng c\u00f3 4 g\u00f3c b\u1eb1ng nhau. \u0110\u1ed3ng th\u1eddi, h\u00ecnh vu\u00f4ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t h\u00ecnh ch\u1eef nh\u1eadt c\u00f3 c\u00e1c c\u1ea1nh b\u1eb1ng nhau.<\/p>\n<p dir=\"ltr\">Hai \u0111\u01b0\u1eddng ch\u00e9o c\u1ee7a h\u00ecnh vu\u00f4ng b\u1eb1ng nhau v\u00e0 c\u1eaft t\u1ea1i m\u1ed9t \u0111i\u1ec3m. \u0110\u01b0\u1eddng ch\u00e9o c\u1ee7a h\u00ecnh vu\u00f4ng s\u1ebd chia th\u00e0nh 2 ph\u1ea7n b\u1eb1ng nhau. \u0110\u1ed3ng th\u1eddi n\u00f3 c\u0169ng c\u00f3 t\u1ea5t c\u1ea3 c\u00e1c thu\u1ed9c t\u00ednh c\u1ee7a h\u00ecnh thoi v\u00e0 h\u00ecnh ch\u1eef nh\u1eadt.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/2-toan-lop-2-hinh-hoc.png\" alt=\"H\u00ecnh vu\u00f4ng trong to\u00e1n h\u1ecdc l\u1edbp 2. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Hinh_chu_nhat\"><\/span>H\u00ecnh ch\u1eef nh\u1eadt<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">H\u00ecnh ch\u1eef nh\u1eadt l\u00e0 m\u1ed9t h\u00ecnh t\u1ee9 gi\u00e1c v\u1edbi 4 g\u00f3c ph\u1ea3i ngang. Trong h\u00ecnh ch\u1eef nh\u1eadt, hai \u0111\u01b0\u1eddng ch\u00e9o s\u1ebd b\u1eb1ng nhau v\u00e0 c\u1eaft t\u1ea1i m\u1ed9t \u0111i\u1ec3m. N\u00f3 c\u00f3 c\u00e1c t\u00ednh ch\u1ea5t \u0111\u1ea7y \u0111\u1ee7 c\u1ee7a h\u00ecnh thang v\u00e0 h\u00ecnh b\u00ecnh h\u00e0nh. Hai b\u00ean \u0111\u1ed1i di\u1ec7n s\u1ebd lu\u00f4n lu\u00f4n song song v\u00e0 b\u1eb1ng nhau, hai g\u00f3c s\u1ebd b\u1eb1ng nhau. <\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/03-toan-lop-2-hinh-hoc.png\" alt=\"H\u00ecnh ch\u1eef nh\u1eadt. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tam_giac\"><\/span>Tam gi\u00e1c<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Tam gi\u00e1c r\u1ea5t c\u01a1 b\u1ea3n v\u00e0 d\u1ec5 nh\u00ecn th\u1ea5y trong to\u00e1n h\u1ecdc l\u1edbp 2. \u0110\u00f3 l\u00e0 3 \u0111i\u1ec3m kh\u00f4ng \u0111\u01b0\u1ee3c c\u0103n ch\u1ec9nh v\u00e0 k\u1ebft n\u1ed1i v\u1edbi nhau trong m\u1ed9t ph\u00e2n \u0111o\u1ea1n.<\/p>\n<p dir=\"ltr\">Tam gi\u00e1c ABC l\u00e0 m\u1ed9t con s\u1ed1 g\u1ed3m 3 ph\u00e2n \u0111o\u1ea1n: AB, AC, BC h\u00ecnh th\u00e0nh. 3 \u0111i\u1ec3m n\u00e0y kh\u00f4ng \u0111\u01b0\u1ee3c c\u0103n ch\u1ec9nh. Tam gi\u00e1c c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t \u0111a gi\u00e1c \u0111\u01a1n ho\u1eb7c \u0111a gi\u00e1c l\u1ed3i. M\u1ed9t tam gi\u00e1c s\u1ebd c\u00f3 \u00edt nh\u1ea5t 3 m\u1eb7t.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/04-toan-lop-2-hinh-hoc.jpg\" alt=\"Tam gi\u00e1c. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mot_so_hinh_anh_cho_hoc_sinh_lop_2\"><\/span>M\u1ed9t s\u1ed1 h\u00ecnh \u1ea3nh cho h\u1ecdc sinh l\u1edbp 2<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 lo\u1ea1i h\u00ecnh \u1ea3nh \u0111\u1ec3 gi\u00fap tr\u1ebb c\u1ee7ng c\u1ed1 ki\u1ebfn \u200b\u200bth\u1ee9c khi h\u1ecdc. H\u00e3y theo d\u00f5i kh\u1ec9!<\/p>\n<p dir=\"ltr\">B\u00e0i 1: Li\u1ec7t k\u00ea c\u00e1c h\u00ecnh tam gi\u00e1c v\u00e0 t\u1ee9 gi\u00e1c trong b\u1ea3n v\u1ebd d\u01b0\u1edbi \u0111\u00e2y?<\/p>\n<p dir=\"ltr\"><img loading=\"lazy\" decoding=\"async\" style=\"margin-left: auto;margin-right: auto\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/05-toan-lop-2-hinh-hoc.jpg\" alt=\"\" width=\"218\" height=\"138\"><\/p>\n<p dir=\"ltr\">B\u00e0i 2: C\u00f3 bao nhi\u00eau h\u00ecnh \u1ea3nh c\u00f3 h\u00ecnh \u1ea3nh \u1edf b\u00ean?<\/p>\n<p dir=\"ltr\"><img loading=\"lazy\" decoding=\"async\" style=\"margin-left: auto;margin-right: auto\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/06-toan-lop-2-hinh-hoc.png\" alt=\"\" width=\"350\" height=\"330\"><\/p>\n<p dir=\"ltr\">B\u00e0i 3: C\u00f3 bao nhi\u00eau h\u00ecnh vu\u00f4ng v\u00e0 h\u00ecnh ch\u1eef nh\u1eadt?<\/p>\n<p dir=\"ltr\"><img loading=\"lazy\" decoding=\"async\" style=\"margin-left: auto;margin-right: auto\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/7-toan-lop-2-hinh-hoc.png\" alt=\"\" width=\"521\" height=\"277\"><\/p>\n<p dir=\"ltr\">B\u00e0i h\u1ecdc 4: C\u00f3 bao nhi\u00eau t\u1ee9 gi\u00e1c v\u00e0 h\u00ecnh tam gi\u00e1c?<\/p>\n<p dir=\"ltr\"><img loading=\"lazy\" decoding=\"async\" style=\"margin-left: auto;margin-right: auto\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/8-toan-lop-2-hinh-hoc.jpg\" alt=\"\" width=\"224\" height=\"83\"><\/p>\n<p dir=\"ltr\">B\u00e0i h\u1ecdc 5: C\u00f3 bao nhi\u00eau h\u00ecnh tam gi\u00e1c v\u00e0 h\u00ecnh t\u1ee9 gi\u00e1c d\u01b0\u1edbi \u0111\u00e2y?<\/p>\n<p dir=\"ltr\"><img loading=\"lazy\" decoding=\"async\" style=\"margin-left: auto;margin-right: auto\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/9-toan-lop-2-hinh-hoc.jpg\" alt=\"\" width=\"231\" height=\"99\"><\/p>\n<p dir=\"ltr\">Tr\u00ean \u0111\u00e2y l\u00e0 c\u00e1c lo\u1ea1i b\u00e0i t\u1eadp \u0111\u1ebfm t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao r\u1ea5t ph\u00f9 h\u1ee3p cho tr\u1ebb em \u0111\u1ec3 t\u1ef1 \u0111\u00e0o t\u1ea1o \u1edf nh\u00e0. Cha m\u1eb9 \u0111\u1ec3 tr\u1ebb l\u00e0m \u0111i\u1ec1u \u0111\u00f3 nhi\u1ec1u l\u1ea7n \u0111\u1ec3 hi\u1ec3u trong m\u1ed9t th\u1eddi gian d\u00e0i v\u00e0 nh\u1edb s\u00e2u h\u01a1n!<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Loi_khuyen_tot_lam_cho_viec_day_toan_de_dang_hon\"><\/span>L\u1eddi khuy\u00ean t\u1ed1t l\u00e0m cho vi\u1ec7c d\u1ea1y to\u00e1n d\u1ec5 d\u00e0ng h\u01a1n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">H\u00ecnh h\u1ecdc c\u1ea5p 2 l\u00e0 m\u1ed9t ch\u1ee7 \u0111\u1ec1 quan tr\u1ecdng trong ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n h\u1ecdc ch\u00ednh. Ngo\u00e0i vi\u1ec7c \u0111\u1ec3 tr\u1ebb em th\u1ef1c hi\u1ec7n c\u00e1c h\u00ecnh th\u1ee9c b\u00e0i t\u1eadp, ng\u01b0\u1eddi b\u1ea1n \u0111\u1ed3ng h\u00e0nh c\u1ee7a cha m\u1eb9 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 r\u1ea5t quan tr\u1ecdng. Do \u0111\u00f3, tr\u1ebb em d\u1ec5 d\u00e0ng d\u1ea1y tr\u1ebb m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng v\u00e0 hi\u1ec7u qu\u1ea3. Cha m\u1eb9 c\u1ea7n bi\u1ebft m\u1ed9t s\u1ed1 l\u1eddi khuy\u00ean t\u1ed1t d\u01b0\u1edbi \u0111\u00e2y!<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Di_cung_voi_tre_em\"><\/span>\u0110i c\u00f9ng v\u1edbi tr\u1ebb em<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">T\u1ef1 hi\u1ec3u l\u00e0 m\u1ed9t \u0111\u1ee9c t\u00ednh r\u1ea5t t\u1ed1t c\u1ea7n \u0111\u01b0\u1ee3c th\u00fac \u0111\u1ea9y \u1edf tr\u1ebb nh\u1ecf. Nh\u01b0ng \u0111\u1ed1i v\u1edbi tu\u1ed5i ti\u1ec3u h\u1ecdc, tr\u1ebb em c\u00f3 xu h\u01b0\u1edbng th\u00edch h\u1ecdc t\u1eadp v\u00e0 ch\u01a1i v\u1edbi cha m\u1eb9. V\u00ec v\u1eady, cha m\u1eb9 n\u00ean d\u00e0nh nhi\u1ec1u th\u1eddi gian v\u1edbi tr\u1ebb em \u0111\u1ec3 h\u1ecdc v\u00e0 gi\u1ea3i c\u00e1c b\u00e0i t\u1eadp. Khi tr\u1ebb g\u1eb7p kh\u00f3 kh\u0103n, h\u00e3y gi\u1ea3i th\u00edch t\u1eeb t\u1eeb \u0111\u1ec3 tr\u1ebb em hi\u1ec3u. <\/p>\n<p dir=\"ltr\">B\u1ea1n c\u00f3 th\u1ec3 \u0111\u00f3ng vai tr\u00f2 c\u1ee7a m\u1ed9t gi\u00e1o vi\u00ean v\u00e0 m\u1ed9t h\u1ecdc sinh ho\u1eb7c thay \u0111\u1ed5i n\u00f3 v\u1edbi b\u1ea1n nh\u01b0 m\u1ed9t h\u1ecdc sinh l\u00e0 m\u1ed9t gi\u00e1o vi\u00ean. \u0110i\u1ec1u n\u00e0y s\u1ebd gi\u00fap tr\u1ebb em h\u00e0o h\u1ee9ng h\u01a1n trong c\u00e1c b\u00e0i h\u1ecdc m\u00e0 kh\u00f4ng ch\u00e1n.<\/p>\n<p dir=\"ltr\">\u0110\u1eb7c bi\u1ec7t l\u00e0 khi tr\u1ebb kh\u00f4ng gi\u1ea3i quy\u1ebft b\u00e0i t\u1eadp v\u1ec1 nh\u00e0 kh\u00f4ng v\u00ec s\u1ef1 thi\u1ebfu ki\u00ean nh\u1eabn m\u00e0 gi\u1ea3i quy\u1ebft tr\u1ebb em ho\u1eb7c m\u1eafng tr\u1ebb con. H\u00e0nh \u0111\u1ed9ng n\u00e0y s\u1ebd kh\u00f4ng gi\u00fap tr\u1ebb h\u1ecdc t\u1ed1t h\u01a1n, nh\u01b0ng n\u00f3 c\u0169ng khi\u1ebfn tr\u1ebb m\u1ea5t kh\u1ea3 n\u0103ng suy ngh\u0129 v\u00e0 nh\u00fat nh\u00e1t h\u01a1n.<\/p>\n<p dir=\"ltr\">Xem th\u00eam: L\u00fd thuy\u1ebft v\u00e0 c\u00e1c lo\u1ea1i b\u00e0i t\u1eadp to\u00e1n h\u1ecdc \u1edf l\u1edbp 2 t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/010-toan-lop-2-hinh-hoc.jpg\" alt=\"Lu\u00f4n lu\u00f4n \u0111i c\u00f9ng tr\u1ebb em khi h\u1ecdc. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Chia_khung_thoi_gian_hoc_tap\"><\/span>Chia khung th\u1eddi gian h\u1ecdc t\u1eadp<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Trong m\u1ed9t ng\u00e0y, b\u1ea1n kh\u00f4ng n\u00ean bu\u1ed9c tr\u1ebb ph\u1ea3i h\u1ecdc qu\u00e1 nhi\u1ec1u, xin vui l\u00f2ng chia th\u1eddi gian \u0111\u1ec3 h\u1ecdc. H\u1ecdc t\u1eadp v\u00e0 ch\u01a1i \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc t\u1eadp r\u1ea5t hi\u1ec7u qu\u1ea3 m\u00e0 nhi\u1ec1u ng\u01b0\u1eddi khuy\u00ean d\u00f9ng. <\/p>\n<p dir=\"ltr\">\u0110\u1ed1i v\u1edbi tr\u1ebb em \u1edf \u0111\u1ed9 tu\u1ed5i ti\u1ec3u h\u1ecdc, 15 \u0111\u1ebfn 20 ph\u00fat l\u00e0 th\u1eddi \u0111i\u1ec3m l\u00fd t\u01b0\u1edfng cho m\u1ed9t bu\u1ed5i. Khi b\u00e0i h\u1ecdc k\u00e9o d\u00e0i qu\u00e1 l\u00e2u, n\u00f3 s\u1ebd l\u00e0m cho em b\u00e9 ch\u00e1n nhanh v\u00e0 kh\u00f4ng t\u1eadp trung. H\u01a1n n\u1eefa, b\u1ea1n c\u0169ng s\u1ebd c\u1ea3m th\u1ea5y thi\u1ebfu ki\u00ean nh\u1eabn.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/11-toan-lop-2-hinh-hoc.jpg\" alt=\"N\u00ean ph\u00e1 v\u1ee1 th\u1eddi gian h\u1ecdc t\u1eadp. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Chia_kien_%E2%80%8B%E2%80%8Bthuc_de_hoc\"><\/span>Chia ki\u1ebfn \u200b\u200bth\u1ee9c \u0111\u1ec3 h\u1ecdc<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">M\u1ed9t trong nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng nhi\u1ec1u nh\u1ea5t \u1edf c\u00e1c qu\u1ed1c gia l\u00e0 h\u1ecdc t\u1eadp vi m\u00f4. B\u1eb1ng c\u00e1ch h\u1ecdc l\u01b0\u1ee3ng ki\u1ebfn \u200b\u200bth\u1ee9c n\u00e0y s\u1ebd \u0111\u01b0\u1ee3c chia th\u00e0nh m\u1ed9t s\u1ed1 ph\u1ea7n trong m\u1ed9t th\u1eddi gian ng\u1eafn \u0111\u1ec3 l\u00e0m cho vi\u1ec7c h\u1ecdc hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5: khi d\u1ea1y b\u00e9 th\u00eam 2 s\u1ed1 trong v\u00f2ng 5. N\u00f3i v\u1edbi con b\u1ea1n th\u00eam s\u1ed1 \u0111\u00f3 v\u1edbi 0 v\u00e0 t\u0103ng d\u1ea7n l\u00ean 1,2,3 &#8230; ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi ng\u00f3n tay. Nh\u01b0ng khi th\u00eam tr\u01b0\u1eddng vi m\u00f4 h\u1ecdc t\u1eadp vi m\u00f4 s\u1ebd hi\u1ec3u m\u1ed9t s\u1ed1 khi c\u1ed9ng 0 s\u1ebd b\u1eb1ng v\u1edbi ch\u00ednh n\u00f3.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/12-toan-lop-2-hinh-hoc.jpg\" alt=\"\u0110\u1eebng d\u1ea1y qu\u00e1 nhi\u1ec1u ki\u1ebfn \u200b\u200bth\u1ee9c trong m\u1ed9t phi\u00ean. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">B\u00ean c\u1ea1nh \u0111\u00f3, khi ki\u1ebfn \u200b\u200bth\u1ee9c \u0111\u01b0\u1ee3c chia th\u00e0nh m\u1ed9t s\u1ed1 ph\u1ea7n. Tr\u1ebb em s\u1ebd nh\u1edb l\u00e2u h\u01a1n v\u00e0 kh\u00f4ng qu\u00e1 t\u1ea3i. H\u1ecdc trung b\u00ecnh nh\u01b0ng hi\u1ec3u bi\u1ebft s\u00e2u s\u1eafc l\u00e0 m\u1ee5c ti\u00eau ch\u00ednh c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p n\u00e0y.<\/p>\n<p>Tr\u00ean \u0111\u00e2y l\u00e0 th\u00f4ng tin v\u1ec1 to\u00e1n h\u1ecdc l\u1edbp 2 m\u00e0 Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef mu\u1ed1n chia s\u1ebb v\u1edbi \u0111\u1ed9c gi\u1ea3. Hy v\u1ecdng r\u1eb1ng, ki\u1ebfn \u200b\u200bth\u1ee9c \u0111\u00f3 s\u1ebd gi\u00fap b\u00e9 h\u1ecdc t\u1ed1t h\u01a1n trong ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n h\u1ecdc ti\u1ec3u h\u1ecdc. \u0110\u1ed3ng th\u1eddi, b\u1ea1n c\u0169ng c\u00f3 nhi\u1ec1u kinh nghi\u1ec7m h\u01a1n \u0111\u1ec3 gi\u00fap tr\u1ebb em c\u1ea3i thi\u1ec7n m\u1ed7i ng\u00e0y.<\/p>\n<p>Ngu\u1ed3n: <a href=\"http:\/\/www.ckconitsha.com\/vn\/\">http:\/\/www.ckconitsha.com\/vn\/<\/a> T\u00e1c gi\u1ea3: <a href=\"https:\/\/www.ckconitsha.com\/vn\/author\/nguyenlandung\">Nguy\u1ec5n L\u00e2n d\u0169ng<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ch\u1ee7 \u0111\u1ec1 c\u1ee7a to\u00e1n h\u1ecdc h\u00ecnh h\u1ecdc c\u1ea5p 2 l\u00e0 m\u1ed9t ph\u1ea7n r\u1ea5t quan tr\u1ecdng c\u1ee7a ch\u01b0\u01a1ng tr\u00ecnh. Do \u0111\u00f3, \u0111\u1ec3 tr\u1ebb h\u1ecdc t\u1ed1t, cha m\u1eb9 c\u1ea7n ph\u1ea3i c\u00f3 ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3ng d\u1ea1y khoa h\u1ecdc. Trong b\u00e0i vi\u1ebft n\u00e0y, kh\u1ec9 s\u1ebd gi\u00fap b\u1ea1n l\u00e0m \u0111i\u1ec1u \u0111\u00f3. H\u00e3y tham kh\u1ea3o th\u00f4ng tin ch\u00fang t\u00f4i chia s\u1ebb&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[100],"tags":[],"class_list":["post-20007","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/20007","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/comments?post=20007"}],"version-history":[{"count":2,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/20007\/revisions"}],"predecessor-version":[{"id":25513,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/20007\/revisions\/25513"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=20007"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=20007"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=20007"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}