{"id":38562,"date":"2026-03-21T13:38:45","date_gmt":"2026-03-21T06:38:45","guid":{"rendered":"https:\/\/cdcangiang.vn\/?p=38562"},"modified":"2026-03-21T13:55:00","modified_gmt":"2026-03-21T06:55:00","slug":"bai-14-03-26-t4g","status":"publish","type":"post","link":"https:\/\/cdcangiang.vn\/index.php\/2026\/03\/21\/bai-14-03-26-t4g\/","title":{"rendered":"Nh\u1eadn bi\u1ebft s\u1edbm v\u00e0 ph\u00f2ng tr\u00e1nh cong v\u1eb9o c\u1ed9t s\u1ed1ng, c\u1eadn th\u1ecb h\u1ecdc \u0111\u01b0\u1eddng"},"content":{"rendered":"<p><iframe loading=\"lazy\" src=\"https:\/\/drive.google.com\/file\/d\/1qTvYV5TVrwn6h4SYl_Giculry_Xt0ynR\/preview\" width=\"500\" height=\"50\"><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\">\ufeff<\/span><\/iframe><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\"><strong><em>Trong m\u00f4i tr\u01b0\u1eddng h\u1ecdc \u0111\u01b0\u1eddng hi\u1ec7n nay, hai v\u1ea5n \u0111\u1ec1 s\u1ee9c kh\u1ecfe ng\u00e0y c\u00e0ng ph\u1ed5 bi\u1ebfn \u1edf h\u1ecdc sinh l\u00e0 v\u1eb9o c\u1ed9t s\u1ed1ng v\u00e0 c\u1eadn th\u1ecb. \u0110\u00e2y \u0111\u1ec1u l\u00e0 nh\u1eefng t\u00ecnh tr\u1ea1ng di\u1ec5n ti\u1ebfn \u00e2m th\u1ea7m, kh\u00f3 nh\u1eadn bi\u1ebft s\u1edbm nh\u01b0ng l\u1ea1i \u1ea3nh h\u01b0\u1edfng l\u00e2u d\u00e0i \u0111\u1ebfn th\u1ec3 ch\u1ea5t, h\u1ecdc t\u1eadp v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng cu\u1ed9c s\u1ed1ng c\u1ee7a tr\u1ebb. N\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n v\u00e0 can thi\u1ec7p k\u1ecbp th\u1eddi, tr\u1ebb c\u00f3 th\u1ec3 ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi nhi\u1ec1u h\u1eadu qu\u1ea3 v\u1ec1 sau nh\u01b0 \u0111au l\u01b0ng m\u1ea1n t\u00ednh, gi\u1ea3m th\u1ecb l\u1ef1c, h\u1ea1n ch\u1ebf ngh\u1ec1 nghi\u1ec7p.<\/em><\/strong><\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-38563 alignleft\" src=\"https:\/\/cdcangiang.vn\/wp-content\/uploads\/2026\/03\/1.Bai-14-03-26-T4G.webp\" alt=\"\" width=\"500\" height=\"218\" \/><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\"><strong>1. V\u1eb9o c\u1ed9t s\u1ed1ng h\u1ecdc \u0111\u01b0\u1eddng l\u00e0 g\u00ec ?<\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">V\u1eb9o c\u1ed9t s\u1ed1ng l\u00e0 t\u00ecnh tr\u1ea1ng c\u1ed9t s\u1ed1ng b\u1ecb cong l\u1ec7ch sang m\u1ed9t b\u00ean (thay v\u00ec th\u1eb3ng). \u1ede h\u1ecdc sinh, nguy\u00ean nh\u00e2n th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn:<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; Ng\u1ed3i h\u1ecdc sai t\u01b0 th\u1ebf (c\u00fai g\u1eadp ng\u01b0\u1eddi, l\u1ec7ch vai)<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; B\u00e0n gh\u1ebf kh\u00f4ng ph\u00f9 h\u1ee3p chi\u1ec1u cao<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; Mang c\u1eb7p s\u00e1ch qu\u00e1 n\u1eb7ng, \u0111eo l\u1ec7ch m\u1ed9t b\u00ean<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; \u00cdt v\u1eadn \u0111\u1ed9ng, ng\u1ed3i l\u00e2u<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\"><strong>a) D\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft s\u1edbm:<\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; Hai vai kh\u00f4ng \u0111\u1ec1u nhau<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; L\u01b0ng cong, l\u1ec7ch sang m\u1ed9t b\u00ean<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; X\u01b0\u01a1ng b\u1ea3 vai nh\u00f4 cao b\u1ea5t th\u01b0\u1eddng<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; Tr\u1ebb hay than m\u1ecfi l\u01b0ng, \u0111au vai<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\"><strong>b) H\u1eadu qu\u1ea3:<\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; Bi\u1ebfn d\u1ea1ng c\u1ed9t s\u1ed1ng l\u00e2u d\u00e0i<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; Gi\u1ea3m kh\u1ea3 n\u0103ng v\u1eadn \u0111\u1ed9ng<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; \u1ea2nh h\u01b0\u1edfng tim, ph\u1ed5i n\u1ebfu n\u1eb7ng<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\"><strong>2. C\u1eadn th\u1ecb h\u1ecdc \u0111\u01b0\u1eddng l\u00e0 g\u00ec ?<\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">C\u1eadn th\u1ecb l\u00e0 t\u00ecnh tr\u1ea1ng m\u1eaft nh\u00ecn r\u00f5 v\u1eadt g\u1ea7n nh\u01b0ng m\u1edd v\u1eadt xa. \u0110\u00e2y l\u00e0 t\u1eadt kh\u00fac x\u1ea1 ph\u1ed5 bi\u1ebfn nh\u1ea5t \u1edf h\u1ecdc sinh<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-38564 alignleft\" src=\"https:\/\/cdcangiang.vn\/wp-content\/uploads\/2026\/03\/2.Bai-14-03-26-T4G.webp\" alt=\"\" width=\"450\" height=\"208\" \/><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\"><strong>a) Nguy\u00ean nh\u00e2n ch\u00ednh:<\/strong><\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; \u0110\u1ecdc s\u00e1ch, d\u00f9ng \u0111i\u1ec7n tho\u1ea1i qu\u00e1 g\u1ea7n<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; Thi\u1ebfu \u00e1nh s\u00e1ng khi h\u1ecdc t\u1eadp<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; S\u1eed d\u1ee5ng thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed nhi\u1ec1u<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; \u00cdt ho\u1ea1t \u0111\u1ed9ng ngo\u00e0i tr\u1eddi<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\"><strong>b) D\u1ea5u hi\u1ec7u nh\u1eadn bi\u1ebft:<\/strong><\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; Nheo m\u1eaft khi nh\u00ecn xa<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; Ng\u1ed3i g\u1ea7n tivi, b\u1ea3ng<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; Hay d\u1ee5i m\u1eaft, ch\u1ea3y n\u01b0\u1edbc m\u1eaft<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; Gi\u1ea3m t\u1eadp trung khi h\u1ecdc<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\"><strong>c) H\u1eadu qu\u1ea3:<\/strong><\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; T\u0103ng \u0111\u1ed9 c\u1eadn nhanh<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; Nguy c\u01a1 tho\u00e1i h\u00f3a v\u00f5ng m\u1ea1c (khi c\u1eadn n\u1eb7ng)<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; \u1ea2nh h\u01b0\u1edfng h\u1ecdc t\u1eadp v\u00e0 sinh ho\u1ea1t<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\"><strong>3. L\u00e0m sao \u0111\u1ec3 ph\u00f2ng ng\u1eeba hi\u1ec7u qu\u1ea3 ?<\/strong><\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\"><strong>\u2705<\/strong><strong> \u0110\u1ed1i v\u1edbi v\u1eb9o c\u1ed9t s\u1ed1ng:<\/strong><\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; Ng\u1ed3i h\u1ecdc \u0111\u00fang t\u01b0 th\u1ebf: l\u01b0ng th\u1eb3ng, m\u1eaft c\u00e1ch v\u1edf 25 &#8211; 30 cm<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; B\u00e0n gh\u1ebf ph\u00f9 h\u1ee3p chi\u1ec1u cao<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; \u0110eo c\u1eb7p hai vai, kh\u00f4ng qu\u00e1 n\u1eb7ng<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; T\u0103ng c\u01b0\u1eddng v\u1eadn \u0111\u1ed9ng: b\u01a1i l\u1ed9i, th\u1ec3 d\u1ee5c<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\"><strong>\u2705<\/strong><strong> \u0110\u1ed1i v\u1edbi c\u1eadn th\u1ecb:<\/strong><\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">\ud83d\udc49 C\u1ee9 20 ph\u00fat h\u1ecdc \u2192 nh\u00ecn xa 20 gi\u00e2y \u2192 kho\u1ea3ng c\u00e1ch t\u1ea7m 6m<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; H\u1ecdc n\u01a1i \u0111\u1ee7 \u00e1nh s\u00e1ng<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; H\u1ea1n ch\u1ebf \u0111i\u1ec7n tho\u1ea1i, m\u00e1y t\u00ednh<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">&#8211; T\u0103ng th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng ngo\u00e0i tr\u1eddi (\u2265 2 gi\u1edd\/ng\u00e0y)<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\"><strong>4. Vai tr\u00f2 c\u1ee7a gia \u0111\u00ecnh v\u00e0 nh\u00e0 tr\u01b0\u1eddng<\/strong><\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\"><strong>&#8211; Ph\u1ee5 huynh<\/strong>: theo d\u00f5i t\u01b0 th\u1ebf h\u1ecdc, th\u1eddi gian s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\"><strong>&#8211; Nh\u00e0 tr\u01b0\u1eddng<\/strong>: ki\u1ec3m tra s\u1ee9c kh\u1ecfe \u0111\u1ecbnh k\u1ef3, b\u1ed1 tr\u00ed b\u00e0n gh\u1ebf ph\u00f9 h\u1ee3p<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\"><strong>&#8211; H\u1ecdc sinh<\/strong>: t\u1ef1 gi\u00e1c gi\u1eef t\u01b0 th\u1ebf v\u00e0 b\u1ea3o v\u1ec7 m\u1eaft<\/span><\/p>\n<p><span style=\"font-family: 'times new roman', times, serif; font-size: 18pt;\">V\u1eb9o c\u1ed9t s\u1ed1ng v\u00e0 c\u1eadn th\u1ecb kh\u00f4ng nguy hi\u1ec3m ngay l\u1eadp t\u1ee9c, nh\u01b0ng <span style=\"color: #3366ff;\"><strong><em>\u1ea3nh h\u01b0\u1edfng l\u00e2u d\u00e0i v\u00e0 kh\u00f3 ph\u1ee5c h\u1ed3i ho\u00e0n to\u00e0n<\/em><\/strong><\/span> n\u1ebfu ph\u00e1t hi\u1ec7n mu\u1ed9n. Vi\u1ec7c ph\u00f2ng ng\u1eeba \u0111\u01a1n gi\u1ea3n nh\u01b0ng c\u1ea7n <span style=\"color: #3366ff;\"><strong><em>duy tr\u00ec m\u1ed7i ng\u00e0y<\/em><\/strong><\/span>. C\u00e1c b\u1eadc ph\u1ee5 huynh h\u00e3y quan s\u00e1t con em m\u00ecnh t\u1eeb nh\u1eefng \u0111i\u1ec1u nh\u1ecf nh\u1ea5t: c\u00e1ch ng\u1ed3i h\u1ecdc, kho\u1ea3ng c\u00e1ch nh\u00ecn, th\u1eddi gian s\u1eed d\u1ee5ng \u0111i\u1ec7n tho\u1ea1i. Ph\u00e1t hi\u1ec7n s\u1edbm &#8211; can thi\u1ec7p s\u1edbm ch\u00ednh l\u00e0 ch\u00eca kh\u00f3a b\u1ea3o v\u1ec7 s\u1ee9c kh\u1ecfe l\u00e2u d\u00e0i cho tr\u1ebb.\/.<\/span><\/p>\n<p style=\"text-align: right;\"><span style=\"font-family: 'times new roman', times, serif; font-size: 14pt;\"><em>Minh C\u01b0\u1eddng<br \/>\nKhoa TT.GDSK &#8211; TT.KSBT An Giang<\/em><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ufeff Trong m\u00f4i tr\u01b0\u1eddng h\u1ecdc \u0111\u01b0\u1eddng hi\u1ec7n nay, hai v\u1ea5n \u0111\u1ec1 s\u1ee9c kh\u1ecfe ng\u00e0y c\u00e0ng ph\u1ed5 bi\u1ebfn \u1edf h\u1ecdc sinh l\u00e0 v\u1eb9o c\u1ed9t s\u1ed1ng v\u00e0 c\u1eadn th\u1ecb. \u0110\u00e2y \u0111\u1ec1u l\u00e0 nh\u1eefng t\u00ecnh tr\u1ea1ng di\u1ec5n ti\u1ebfn \u00e2m th\u1ea7m, kh\u00f3 nh\u1eadn bi\u1ebft s\u1edbm nh\u01b0ng l\u1ea1i \u1ea3nh h\u01b0\u1edfng l\u00e2u d\u00e0i \u0111\u1ebfn th\u1ec3 ch\u1ea5t, h\u1ecdc t\u1eadp v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":38563,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"limit_modified_date":"","last_modified_date":"","footnotes":""},"categories":[349,322],"tags":[],"class_list":["post-38562","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bai-viet-dat-hang","category-cham-nhuan-but"],"_links":{"self":[{"href":"https:\/\/cdcangiang.vn\/index.php\/wp-json\/wp\/v2\/posts\/38562","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cdcangiang.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cdcangiang.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cdcangiang.vn\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/cdcangiang.vn\/index.php\/wp-json\/wp\/v2\/comments?post=38562"}],"version-history":[{"count":3,"href":"https:\/\/cdcangiang.vn\/index.php\/wp-json\/wp\/v2\/posts\/38562\/revisions"}],"predecessor-version":[{"id":38567,"href":"https:\/\/cdcangiang.vn\/index.php\/wp-json\/wp\/v2\/posts\/38562\/revisions\/38567"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cdcangiang.vn\/index.php\/wp-json\/wp\/v2\/media\/38563"}],"wp:attachment":[{"href":"https:\/\/cdcangiang.vn\/index.php\/wp-json\/wp\/v2\/media?parent=38562"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cdcangiang.vn\/index.php\/wp-json\/wp\/v2\/categories?post=38562"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cdcangiang.vn\/index.php\/wp-json\/wp\/v2\/tags?post=38562"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}