Sau khi h\u1ecdc xong l\u1edbp 6 l\u00e0 l\u00fac c\u00e1c em h\u1ecdc sinh b\u01b0\u1edbc \u0111\u1ea7u tr\u1ea3i qua ch\u01b0\u01a1ng tr\u00ecnh h\u1ecdc t\u01b0\u01a1ng \u0111\u1ed1i \u201cn\u1eb7ng\u201d c\u1ee7a h\u1ec7 THCS. Sang l\u1edbp 7, \u0111\u1ed1i v\u1edbi m\u00f4n v\u0103n c\u00e1c em d\u1ea7n l\u00e0m quen v\u1edbi c\u00e1c b\u01b0\u1edbc l\u00e0m b\u00e0i v\u0103n l\u1eadp lu\u1eadn ch\u1ee9ng minh l\u1edbp 7.<\/p>\n

\u0110\u1ec3 chu\u1ea9n b\u1ecb t\u1ed1t ki\u1ebfn th\u1ee9c cho m\u00f4n v\u0103n v\u1edbi th\u1ec3 lo\u1ea1i l\u1eadp lu\u1eadn ch\u1ee9ng minh, c\u00e1c em n\u00ean l\u01b0u \u00fd c\u00e1c g\u1ee3i \u00fd sau:<\/p>\n

<\/p>\n

a) C\u00e1c b\u01b0\u1edbc l\u00e0m b\u00e0i v\u0103n l\u1eadp lu\u1eadn ch\u1ee9ng minh l\u1edbp 7: b\u01b0\u1edbc t\u00ecm hi\u1ec3u \u0111\u1ec1 v\u00e0 t\u00ecm \u00fd<\/h3>\n

– Tr\u01b0\u1edbc h\u1ebft c\u00e1c em ph\u1ea3i x\u00e1c \u0111\u1ecbn \u0111\u1ec1 b\u00e0i y\u00eau c\u1ea7u \u0111i\u1ec1u g\u00ec?<\/p>\n

B\u01b0\u1edbc n\u00e0y gi\u00fap c\u00e1c em d\u1ec5 d\u00e0ng x\u00e1c \u0111\u1ecbnh y\u00eau c\u1ea7u chung c\u1ee7a \u0111\u1ec1.<\/p>\n

– T\u00ecm hi\u1ec3u \u0111\u1ec1 \u0111\u1ec3 bi\u1ebft \u0111\u1ec1 b\u00e0i y\u00eau c\u1ea7u\u00a0ch\u1ee9ng minh\u00a0\u0111i\u1ec1u g\u00ec?<\/p>\n

Thao t\u00e1c n\u00e0y nh\u1eb1m x\u00e1c \u0111\u1ecbnh c\u1ee5 th\u1ec3 v\u1ea5n \u0111\u1ec1 c\u1ea7n ch\u1ee9ng minh. V\u1ea5n \u0111\u1ec1\u00a0c\u1ea7n ch\u1ee9ng minh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u01b0a ra d\u01b0\u1edbi d\u1ea1ng lu\u1eadn \u0111i\u1ec3m cho s\u1eb5n ho\u1eb7c d\u01b0\u1edbi d\u1ea1ng m\u1ed9t c\u00e2u v\u0103n, c\u00e2u th\u01a1\u00a0hay\u00a0h\u00ecnh \u1ea3nh… \u0110\u1ed1i v\u1edbi nh\u1eefng \u0111\u1ec1 m\u00e0 v\u1ea5n \u0111\u1ec1 c\u1ea7n ch\u1ee9ng minh \u0111\u01b0\u1ee3c \u0111\u01b0a ra m\u1ed9t c\u00e1ch gi\u00e1n ti\u1ebfp, ta ph\u1ea3i x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c m\u1ed9t c\u00e1ch c\u1ee5 th\u1ec3, ch\u00ednh x\u00e1c v\u1ea5n \u0111\u1ec1 qua h\u00ecnh \u1ea3nh, c\u00e1ch bi\u1ec3u \u0111\u1ea1t, ch\u1eb3ng h\u1ea1n: Em h\u00e3y vi\u1ebft m\u1ed9t b\u00e0i v\u0103n ch\u1ee9ng minh t\u00ednh \u0111\u00fang \u0111\u1eafn c\u1ee7a c\u00e2u t\u1ee5c ng\u1eef\u00a0C\u00f3 c\u00f4ng m\u00e0i s\u1eaft, c\u00f3 ng\u00e0y n\u00ean kim. V\u1edbi \u0111\u1ec1 ki\u1ec3u n\u00e0y, m\u1ed9t m\u1eb7t ph\u1ea3i c\u1eaft ngh\u0129a \u0111\u01b0\u1ee3c ngh\u0129a \u0111en c\u1ee7a h\u00ecnh \u1ea3nh\u00a0m\u00e0i s\u1eaft\u00a0\u00e0\u00a0n\u00ean kim. \u0110\u1ed3ng th\u1eddi ph\u1ea3i hi\u1ec3u \u0111\u01b0\u1ee3c ngh\u0129a b\u00f3ng, ng\u1ee5 \u00fd c\u1ee7a h\u00ecnh \u1ea3nh \u1ea9n d\u1ee5. V\u1edbi c\u00e2u n\u00f3i tr\u00ean ng\u01b0\u1eddi x\u01b0a mu\u1ed1n nh\u1eafn nh\u1ee7 \u0111\u1ebfn th\u1ebf h\u1ec7 sau ph\u1ea3i bi\u1ebft ki\u00ean tr\u00ec, nh\u1eabn n\u1ea1i, b\u1ec1n ch\u00ed th\u00ec s\u1ebd \u0111\u1ea1t \u0111\u01b0\u1ee3c th\u00e0nh qu\u1ea3 nh\u01b0 mong mu\u1ed1n.<\/p>\n

– Lu\u1eadn \u0111i\u1ec3m c\u1ee7a b\u00e0i v\u0103n s\u1ebd l\u00e0 g\u00ec?<\/p>\n

Thao t\u00e1c n\u00e0y nh\u1eb1m x\u00e1c \u0111\u1ecbnh lu\u1eadn \u0111i\u1ec3m c\u1ee5 th\u1ec3 cho b\u00e0i v\u0103n (lu\u1eadn \u0111i\u1ec3m c\u00f3 th\u1ec3 d\u00f9ng \u0111\u01b0\u1ee3c \u0111\u1ec3 \u0111\u1eb7t nhan \u0111\u1ec1 cho b\u00e0i v\u0103n).<\/p>\n

– L\u1eadp lu\u1eadn ch\u1ee9ng minh theo c\u00e1ch n\u00e0o?<\/p>\n

lu\u1eadn \u0111i\u1ec3m c\u1ee5 Tu\u1ef3 theo t\u1eebng th\u1ec3 m\u00e0 l\u1ef1a ch\u1ecdn c\u00e1ch l\u1eadp lu\u1eadn theo c\u00e1c h\u01b0\u1edbng:<\/p>\n

+ D\u00f9ng l\u00ed l\u1ebd v\u00e0 ph\u00e2n t\u00edch l\u00ed l\u1ebd;<\/p>\n

+ D\u00f9ng l\u00ed l\u1ebd v\u00e0 d\u1eabn ch\u1ee9ng;<\/p>\n

+ K\u1ebft h\u1ee3p c\u1ea3 hai.<\/p>\n

b) C\u00e1c b\u01b0\u1edbc l\u00e0m b\u00e0i v\u0103n l\u1eadp lu\u1eadn ch\u1ee9ng minh l\u1edbp 7 kh\u00f4ng th\u1ec3 b\u1ecf qua ph\u1ea7n l\u1eadp d\u00e0n b\u00e0i<\/h3>\n

\u0110\u1ed1i v\u1edbi b\u00e0i v\u0103n l\u1eadp lu\u1eadn ch\u1ee9ng minh l\u1eadp d\u00e0n b\u00e0i c\u0169ng theo b\u1ed1 c\u1ee5c ba ph\u1ea7n: M\u1edf b\u00e0i, th\u00e2n b\u00e0i, k\u1ebft b\u00e0i. X\u00e1c \u0111\u1ecbnh n\u1ed9i dung c\u1ee7a t\u1eebng ph\u1ea7n, m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c ph\u1ea7n, tr\u00ecnh t\u1ef1 tri\u1ec3n khai c\u00e1c lu\u1eadn c\u1ee9 trong t\u1eebng ph\u1ea7n, c\u00e1ch \u0111\u01b0a d\u1eabn ch\u1ee9ng cho m\u1ed7i lu\u1eadn \u0111i\u1ec3m, l\u00ed l\u1ebd,…<\/p>\n

–\u00a0M\u1edf b\u00e0i:<\/p>\n

X\u00e1c \u0111\u1ecbnh r\u00f5\u00a0\u00fd ngh\u0129a v\u1ea5n \u0111\u1ec1 c\u1ea7n ch\u1ee9ng minh, kh\u00e1i qu\u00e1t \u00fd ki\u1ebfn c\u1ee7a m\u00ecnh v\u1ec1 v\u1ea5n \u0111\u1ec1 \u0111\u00f3.<\/p>\n

–\u00a0Th\u00e2n b\u00e0i:<\/p>\n

+ Tri\u1ec3n khai lu\u1eadn \u0111i\u1ec3m ch\u00ednh b\u1eb1ng c\u00e1c lu\u1eadn \u0111i\u1ec3m nh\u1ecf n\u00e0o?<\/p>\n

+ D\u00f9ng nh\u1eefng l\u00ed l\u1ebd n\u00e0o \u0111\u1ec3 ch\u1ee9ng minh?<\/p>\n

+ L\u1ef1a ch\u1ecdn c\u00e1c d\u1eabn ch\u1ee9ng \u0111\u1ec3 thuy\u1ebft ph\u1ee5c cho l\u00ed l\u1ebd.<\/p>\n

+ C\u00e2n nh\u1eafc vi\u1ec7c s\u1eafp x\u1ebfp c\u00e1c lu\u1eadn c\u1ee9 (l\u00ed l\u1ebd v\u00e0 d\u1eabn ch\u1ee9ng) sao cho c\u00f3 s\u1ee9c thuy\u1ebft ph\u1ee5c nh\u1ea5t.<\/p>\n

–\u00a0K\u1ebft b\u00e0i:<\/p>\n

Kh\u1eb3ng \u0111\u1ecbnh t\u00ednh \u0111\u00fang \u0111\u1eafn c\u1ee7a \u0111i\u1ec1u \u0111\u00e3 ch\u1ee9ng minh. M\u1edf r\u1ed9ng \u00fd ngh\u0129a c\u1ee7a v\u1ea5n \u0111\u1ec1.<\/p>\n

<\/p>\n

c)C\u00e1c b\u01b0\u1edbc l\u00e0m b\u00e0i v\u0103n l\u1eadp lu\u1eadn ch\u1ee9ng minh l\u1edbp 7: Ph\u1ea7n vi\u1ebft b\u00e0i b\u1ea1n n\u00ean vi\u1ebft nh\u01b0 th\u1ebf n\u00e0o?<\/h3>\n

D\u1ef1a v\u00e0o d\u00e0n \u00fd \u0111\u00e3\u00a0\u0111\u01b0\u1ee3c\u00a0x\u00e2y d\u1ef1ng\u00a0\u1edf tr\u00ean ta l\u1ea7n l\u01b0\u1ee3t vi\u1ebft t\u1eeb\u00a0M\u1edf b\u00e0i, t\u1eebng \u0111o\u1ea1n c\u1ee7a\u00a0Th\u00e2n b\u00e0i\u00a0v\u00e0\u00a0K\u1ebft b\u00e0i.<\/p>\n

– Trong c\u00e1c b\u01b0\u1edbc l\u00e0m b\u00e0i v\u0103n l\u1eadp lu\u1eadn ch\u1ee9ng minh l\u1edbp 7, ph\u1ea7n\u00a0M\u1edf b\u00e0i\u00a0b\u1ea1n c\u00f3 c\u00e1c c\u00e1ch sau:<\/p>\n

+ \u0110i th\u1eb3ng v\u00e0o v\u1ea5n \u0111\u1ec1 c\u1ea7n ch\u1ee9ng minh<\/p>\n

V\u00ed d\u1ee5 cho m\u1ed9t\u00a0\u0111\u1ec1 v\u0103n\u00a0Ng\u01b0\u1eddi x\u01b0a c\u00f3 c\u00e2u: “C\u00f3 ch\u00ed th\u00ec n\u00ean”. Em h\u00e3y vi\u1ebft m\u1ed9t b\u00e0i v\u0103n ch\u1ee9ng minh t\u00ednh \u0111\u00fang \u0111\u1eafn c\u1ee7a c\u00e2u t\u1ee5c ng\u1eef \u0111\u00f3.<\/p>\n

V\u1edbi m\u1ed9t \u0111\u1ec1 v\u0103n nh\u01b0 v\u1eady ta c\u00f3 th\u1ec3\u00a0vi\u1ebft\u00a0ph\u1ea7n\u00a0M\u1edf b\u00e0i nh\u01b0 sau:<\/p>\n

C\u00f3 \u00fd ch\u00ed, ngh\u1ecb l\u1ef1c th\u00ec s\u1ebd th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c ho\u00e0i b\u00e3o c\u1ee7a m\u00ecnh, m\u1edbi c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh ng\u01b0\u1eddi th\u00e0nh \u0111\u1ea1t. \u0110\u00fang nh\u01b0 nh\u00e2n d\u00e2n ta \u0111\u00e3 \u0111\u00fac k\u1ebft: “C\u00f3 ch\u00ed th\u00ec n\u00ean”.<\/p>\n

+ \u0110i t\u1eeb c\u00e1i chung, d\u1eabn d\u1eaft \u0111\u1ebfn c\u00e1i c\u1ea7n ch\u1ee9ng minh<\/p>\n

C\u0169ng v\u1edbi \u0111\u1ec1 v\u0103n tr\u00ean, theo c\u00e1ch n\u00e0y c\u00f3 th\u1ec3 vi\u1ebft:<\/p>\n

Cu\u1ed9c s\u1ed1ng bao gi\u1edd c\u0169ng \u0111\u1ea7y nh\u1eefng kh\u00f3 kh\u0103n, th\u00e1ch th\u1ee9c. Ng\u01b0\u1eddi ta s\u1ed1ng t\u1ee9c l\u00e0 bi\u1ebft kh\u1eafc ph\u1ee5c kh\u00f3 kh\u0103n, v\u01b0\u1ee3t qua nh\u1eefng th\u00e1ch th\u1ee9c \u0111\u1ec3 v\u01b0\u01a1n t\u1edbi th\u00e0nh c\u00f4ng. Thi\u1ebfu \u0111i \u00fd ch\u00ed, ngh\u1ecb l\u1ef1c s\u1ebd kh\u00f4ng bao gi\u1edd \u0111\u1ebfn \u0111\u01b0\u1ee3c b\u1ebfn b\u1edd c\u1ee7a th\u00e0nh c\u00f4ng, \u0111\u00fang nh\u01b0 d\u00e2n gian v\u1eabn th\u01b0\u1eddng n\u00f3i:\u00a0C\u00f3 ch\u00ed th\u00ec n\u00ean.<\/p>\n

+ C\u00f3 th\u1ec3 \u0111\u01b0a ra m\u1ed9t b\u00e0i d\u1eabn ch\u1ee9ng th\u1ef1c ti\u1ec5n \u0111\u1ec3 d\u1eabn v\u00e0o v\u1ea5n \u0111\u1ec1 c\u1ea7n ch\u1ee9ng minh<\/p>\n

V\u1edbi \u0111\u1ec1 v\u0103n tr\u00ean, theo c\u00e1ch n\u00e0y c\u00f3 th\u1ec3 vi\u1ebft:<\/p>\n

Ai m\u00e0 ch\u1eb3ng mu\u1ed1n th\u00e0nh \u0111\u1ea1t. Song kh\u00f4ng ph\u1ea3i ai c\u0169ng c\u00f3 \u0111\u01b0\u1ee3c \u00fd ch\u00ed, ngh\u1ecb l\u1ef1c \u0111\u1ec3 c\u00f3 th\u1ec3 th\u00e0nh \u0111\u1ea1t. Nh\u00e2n d\u00e2n ta \u0111\u00e3 d\u1ea1y r\u1ea5t \u0111\u00fang v\u1ec1 \u0111i\u1ec1u n\u00e0y:\u00a0C\u00f3 ch\u00ed th\u00ec n\u00ean.<\/p>\n

– C\u00e1ch vi\u1ebft\u00a0Th\u00e2n b\u00e0i:<\/p>\n

+ Ch\u00fa \u00fd vi\u1ebft tu\u1ea7n t\u1ef1 t\u1eebng \u0111o\u1ea1n, l\u1ef1a ch\u1ecdn c\u00e1c t\u1eeb ng\u1eef, c\u00e2u k\u1ebft n\u1ed1i, chuy\u1ec3n ti\u1ebfp gi\u1eefa c\u00e1c ph\u1ea7n, c\u00e1c \u0111o\u1ea1n. \u0110\u1ed1i v\u1edbi v\u0103n\u00a0l\u1eadp lu\u1eadn\u00a0ch\u1ee9ng minh, ta th\u01b0\u1eddng g\u1eb7p c\u00e1c t\u1eeb ng\u1eef chuy\u1ec3n ti\u1ebfp nh\u01b0: Th\u1eadt v\u1eady,…; Qu\u1ea3 \u0111\u00fang nh\u01b0 v\u1eady,…; C\u00f3 th\u1ec3 th\u1ea5y r\u00f5…; \u0110i\u1ec1u \u0111\u00f3 \u0111\u01b0\u1ee3c ch\u1ee9ng t\u1ecf…; …<\/p>\n

+ Khi\u00a0vi\u1ebft ph\u1ea7n\u00a0ph\u00e2n t\u00edch l\u00ed l\u1ebd\u00a0b\u1ea1n c\u1ea7n ch\u00fa \u00fd t\u00ednh l\u00f4gic, ch\u1eb7t ch\u1ebd\u00a0c\u1ee7a c\u00e1c chi ti\u1ebft v\u1edbi nhau;<\/p>\n

+ Khi \u0111\u01b0a ra d\u1eabn ch\u1ee9ng c\u1ea7n t\u1eadp trung ph\u00e2n t\u00edch nh\u1eefng bi\u1ec3u hi\u1ec7n ti\u00eau bi\u1ec3u, g\u1eafn v\u1edbi lu\u1eadn \u0111i\u1ec3m, l\u00ed l\u1ebd c\u1ee7a m\u00ecnh, kh\u00f4ng n\u00ean k\u1ec3 l\u1ec3 d\u00e0i d\u00f2ng.<\/p>\n

–\u00a0K\u1ebft b\u00e0i:<\/p>\n

+ Ng\u01b0\u1eddi ta th\u01b0\u1eddng s\u1eed d\u1ee5ng nh\u1eefng t\u1eeb ng\u1eef \u0111\u1ec3 chuy\u1ec3n \u00fd khi k\u1ebft b\u00e0i nh\u01b0: T\u00f3m l\u1ea1i,…; Nh\u01b0 v\u1eady,…; \u0110\u1ebfn \u0111\u00e2y, c\u00f3 th\u1ec3 kh\u1eb3ng \u0111\u1ecbnh…<\/p>\n

+ \u0110\u1eb7c bi\u1ec7t trong c\u00e1ch l\u00e0m b\u00e0i v\u0103n l\u1eadp lu\u1eadn ch\u1ee9ng minh l\u1edbp 7, c\u1ea7n \u0111\u1eb7c bi\u1ec7t l\u01b0u \u00fd s\u1ef1 li\u00ean k\u1ebft\u00a0gi\u1eefa M\u1edf b\u00e0i v\u00e0 K\u1ebft b\u00e0i: M\u1edf b\u00e0i theo c\u00e1ch n\u00e0o th\u00ec K\u1ebft b\u00e0i c\u0169ng ph\u1ea3i theo c\u00e1ch \u1ea5y.<\/p>\n

d) Trong c\u00e1c b\u01b0\u1edbc l\u00e0m b\u00e0i v\u0103n l\u1eadp lu\u1eadn ch\u1ee9ng minh l\u1edbp 7 c\u1ea7n \u0111\u1eb7c bi\u1ec7t l\u01b0u \u00fd vi\u1ec7c \u0111\u1ecdc l\u1ea1i v\u00e0 s\u1eeda ch\u1eefa l\u1ed7i<\/h3>\n

– Ki\u1ec3m tra l\u1ea1i c\u00e1ch di\u1ec5n \u0111\u1ea1t, c\u00e1ch d\u00f9ng c\u00e1c t\u1eeb ng\u1eef l\u1eadp lu\u1eadn, c\u00e1c t\u1eeb ng\u1eef chuy\u1ec3n ti\u1ebfp,…<\/p>\n

– So\u00e1t c\u00e1c l\u1ed7i v\u1ec1 ch\u00ednh t\u1ea3, d\u00f9ng t\u1eeb, vi\u1ebft c\u00e2u,…<\/p>\n","protected":false},"excerpt":{"rendered":"

Sau khi h\u1ecdc xong l\u1edbp 6 l\u00e0 l\u00fac c\u00e1c em h\u1ecdc sinh b\u01b0\u1edbc \u0111\u1ea7u tr\u1ea3i qua ch\u01b0\u01a1ng tr\u00ecnh h\u1ecdc t\u01b0\u01a1ng \u0111\u1ed1i \u201cn\u1eb7ng\u201d c\u1ee7a h\u1ec7 THCS. Sang l\u1edbp 7, \u0111\u1ed1i v\u1edbi… <\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[415,423,1,407],"tags":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/posts\/10177"}],"collection":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/comments?post=10177"}],"version-history":[{"count":0,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/posts\/10177\/revisions"}],"wp:attachment":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/media?parent=10177"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/categories?post=10177"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/tags?post=10177"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}