{"id":6618,"date":"2019-07-02T07:36:15","date_gmt":"2019-07-02T07:36:15","guid":{"rendered":"https:\/\/kynaforkids.vn\/blog\/?p=6618"},"modified":"2019-07-02T07:36:15","modified_gmt":"2019-07-02T07:36:15","slug":"mach-cha-me-cach-day-tre-lop-1-hoc-toan-hieu-qua","status":"publish","type":"post","link":"https:\/\/kynaforkids.vn\/blog\/mach-cha-me-cach-day-tre-lop-1-hoc-toan-hieu-qua.html","title":{"rendered":"M\u00e1ch cha m\u1eb9 c\u00e1ch d\u1ea1y tr\u1ebb l\u1edbp 1 h\u1ecdc to\u00e1n hi\u1ec7u qu\u1ea3"},"content":{"rendered":"

H\u1ea7u h\u1ebft nh\u1eefng b\u00e9 m\u1edbi v\u00e0o ti\u1ec3u h\u1ecdc th\u01b0\u1eddng ch\u01b0a l\u00e0m quen \u0111\u01b0\u1ee3c v\u1edbi vi\u1ec7c h\u1ecdc. V\u00ec th\u1ebf cha m\u1eb9 c\u1ea7n d\u00e0nh th\u00eam th\u1eddi gian m\u1ed7i ng\u00e0y \u0111\u1ec3 \u0111\u1ed3ng h\u00e0nh v\u00e0 gi\u00fap \u0111\u1ee1 con. Trong \u0111\u00f3, c\u00e1ch d\u1ea1y tr\u1ebb l\u1edbp 1 h\u1ecdc to\u00e1n l\u00e0 m\u1ed9t trong nh\u1eefng \u0111i\u1ec1u ph\u1ee5 huynh quan t\u00e2m nh\u1ea5t.\u00a0<\/span><\/p>\n

M\u00f4n to\u00e1n l\u00e0 m\u00f4n h\u1ecdc ch\u00ednh y\u1ebfu trong ch\u01b0\u01a1ng tr\u00ecnh n\u00ean chi\u1ebfm th\u1eddi l\u01b0\u1ee3ng v\u00e0 s\u1ed1 l\u01b0\u1ee3ng b\u00e0i h\u1ecdc l\u1edbn. \u0110\u1ec3 ti\u1ebfp thu m\u00f4n to\u00e1n, tr\u1ebb em c\u0169ng c\u1ea7n r\u1ea5t nhi\u1ec1u c\u00f4ng s\u1ee9c. Do \u0111\u00f3, cha m\u1eb9 n\u00ean bi\u1ebft c\u00e1ch d\u1ea1y tr\u1ebb l\u1edbp 1 h\u1ecdc to\u00e1n th\u1eadt khoa h\u1ecdc v\u00e0 h\u1ee3p t\u00e2m l\u00fd \u0111\u1ec3 b\u00e9 h\u1ecdc t\u1ed1t h\u01a1n. <\/span><\/p>\n

Trong b\u00e0i vi\u1ebft n\u00e0y, Kyna for kids m\u00e1ch b\u1ea1n <\/span>c\u00e1ch d\u1ea1y tr\u1ebb h\u1ecdc to\u00e1n t\u01b0 duy l\u1edbp 1<\/strong><\/a> nhi\u1ec1u ph\u1ee5 huynh \u00e1p d\u1ee5ng th\u00e0nh c\u00f4ng. C\u00e1ch d\u1ea1y n\u00e0y g\u1ed3m c\u00f3 nh\u1eefng b\u01b0\u1edbc nh\u01b0 sau:<\/span><\/p>\n

B\u01b0\u1edbc 1: Nh\u1edb v\u00e0 bi\u1ebft so s\u00e1nh \u0111\u1ed9 l\u1edbn c\u00e1c s\u1ed1<\/h2>\n

\u0110\u1ec3 d\u1ea1y tr\u1ebb h\u1ecdc to\u00e1n l\u1edbp 1, nh\u1ea5t \u0111\u1ecbnh ph\u1ea3i c\u00f3 c\u00e1ch nh\u1edb \u0111\u01b0\u1ee3c t\u1ea5t c\u1ea3 con s\u1ed1 trong ph\u1ea1m vi 10. C\u00e1ch h\u1eefu hi\u1ec7u nh\u1ea5t l\u00e0 h\u1ecdc thu\u1ed9c l\u00f2ng. B\u1ea1n c\u00f3 th\u1ec3 cho tr\u1ebb \u0111\u1ebfm \u0111i \u0111\u1ebfm l\u1ea1i c\u00e1c s\u1ed1 cho \u0111\u1ebfn khi n\u00e0o thu\u1ed9c n\u1eb1m l\u00f2ng th\u00ec m\u1edbi ho\u00e0n th\u00e0nh. \u0110\u1ec3 ki\u1ec3m tra, b\u1ea1n c\u00f3 th\u1ec3 vi\u1ebft b\u1ea5t k\u1ef3 s\u1ed1 n\u00e0o v\u00e0 y\u00eau c\u1ea7u b\u00e9 \u0111\u1ecdc \u0111\u00fang s\u1ed1 \u0111\u00f3. Ng\u01b0\u1ee3c l\u1ea1i, b\u1ea1n \u0111\u1ecdc s\u1ed1 v\u00e0 y\u00eau c\u1ea7u b\u00e9 vi\u1ebft s\u1ed1 \u0111\u00f3 ra.<\/span><\/p>\n

Sau khi nh\u1edb t\u1ea5t c\u1ea3 s\u1ed1 trong ph\u1ea1m vi 10, b\u00e9 c\u1ea7n so s\u00e1nh \u0111\u1ed9 l\u1edbn gi\u1eefa c\u00e1c s\u1ed1. \u0110\u1ea7u ti\u00ean, b\u1ea1n vi\u1ebft d\u00e3y s\u1ed1 l\u00ean b\u1ea3ng theo th\u1ee9 t\u1ef1 t\u0103ng d\u1ea7n 0,1,2,3,4,5,6,7,8,9, 10. Sau \u0111\u00f3, gi\u1ea3i th\u00edch cho b\u00e9 bi\u1ebft s\u1ed1 li\u1ec1n tr\u01b0\u1edbc b\u00e9 h\u01a1n s\u1ed1 li\u1ec1n sau. Ch\u1ec9 c\u1ea7n b\u00e9 thu\u1ed9c d\u00e3y s\u1ed1 n\u00e0y l\u00e0 c\u00f3 th\u1ec3 so s\u00e1nh \u0111\u01b0\u1ee3c \u0111\u1ed9 l\u1edbn c\u00e1c s\u1ed1 theo c\u00e1ch n\u00e0y.<\/p>\n

N\u1ebfu b\u00e9 ti\u1ebfp thu th\u1eed th\u00e1ch n\u00e0y kh\u00e1 nhanh, b\u1ea1n c\u00f3 th\u1ec3 gi\u1ea3i th\u00edch cho b\u00e9 hi\u1ec3u: s\u1ed1 li\u1ec1n tr\u01b0\u1edbc + 1 = s\u1ed1 li\u1ec1n sau. V\u00ec th\u1ebf, s\u1ed1 li\u1ec1n sau lu\u00f4n l\u1edbn h\u01a1n s\u1ed1 li\u1ec1n tr\u01b0\u1edbc 1 \u0111\u01a1n v\u1ecb. \u0110\u00e2y ch\u00ednh l\u00e0 ti\u1ec1n \u0111\u1ec1 \u0111\u1ec3 b\u00e9 h\u1ecdc ph\u00e9p t\u00ednh c\u1ed9ng sau n\u00e0y.<\/p>\n

\"\u0110\u00e2y
\u0110\u00e2y c\u0169ng l\u00e0 m\u1ed9t c\u00e1ch gi\u00fap b\u00e9 nh\u1eadn bi\u1ebft \u0111\u1ed9 l\u1edbn c\u1ee7a c\u00e1c s\u1ed1<\/figcaption><\/figure>\n

Ng\u01b0\u1ee3c l\u1ea1i, \u0111\u1ed1i v\u1edbi nh\u1eefng b\u00e9 ch\u1eadm hi\u1ec3u h\u01a1n, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u01b0a v\u00ed d\u1ee5. M\u1ed9t t\u00fai k\u1eb9o g\u1ed3m 2 vi\u00ean k\u1eb9o v\u00e0 m\u1ed9t t\u00fai k\u1eb9o c\u00f3 3 vi\u00ean k\u1eb9o, h\u1ecfi t\u00fai n\u00e0o nhi\u1ec1u h\u01a1n. Th\u00f4ng qua s\u1ef1 minh ho\u1ea1 n\u00e0y, b\u00e9 s\u1ebd hi\u1ec3u b\u00e0i d\u1ec5 h\u01a1n.<\/p>\n

B\u01b0\u1edbc 2: \u0110\u1ebfm xu\u00f4i, ng\u01b0\u1ee3c, nh\u1ea3y c\u00f3c<\/h2>\n

\u1ede b\u01b0\u1edbc 1 c\u1ee7a c\u00e1ch d\u1ea1y tr\u1ebb l\u1edbp 1 h\u1ecdc to\u00e1n \u0111\u00e3 n\u00f3i, b\u00e9 c\u1ea7n \u0111\u1ebfm xu\u00f4i \u0111\u01b0\u1ee3c d\u00e3y s\u1ed1 t\u1eeb 0 \u0111\u1ebfn 10. \u1ede b\u01b0\u1edbc n\u00e0y, b\u1ea1n d\u1ea1y b\u00e9 \u0111\u1ebfm ng\u01b0\u1ee3c 10,9,8,7,6,5,4,3,2,1,0. K\u1ef9 n\u0103ng \u0111\u1ec3 \u0111\u1ebfm ng\u01b0\u1ee3c tu\u1ef3 thu\u1ed9c v\u00e0o \u0111\u1ed9 th\u00f4ng minh c\u1ee7a t\u1eebng b\u00e9. Nh\u1eefng b\u00e9 th\u00f4ng minh s\u1ebd t\u1ef1 suy ra \u0111\u01b0\u1ee3c t\u1eeb d\u00e3y s\u1ed1 xu\u00f4i. Nh\u1eefng b\u00e9 k\u00e9m h\u01a1n s\u1ebd c\u1ea7n s\u1ef1 ki\u00ean nh\u1eabn v\u00e0 th\u1eddi gian h\u1ecdc thu\u1ed9c l\u00f2ng. Tuy nhi\u00ean, c\u00e1ch h\u1ecdc n\u00e0o mi\u1ec5n ph\u00f9 h\u1ee3p v\u00e0 hi\u1ec7u qu\u1ea3 \u0111\u1ec1u n\u00ean \u0111\u01b0\u1ee3c khuy\u1ebfn kh\u00edch.<\/span><\/p>\n

Sau khi b\u00e9 c\u00f3 th\u1ec3 \u0111\u1ebfm xu\u00f4i v\u00e0 \u0111\u1ebfm ng\u01b0\u1ee3c nhu\u1ea7n nhuy\u1ec5n, b\u1ea1n d\u1ea1y b\u00e9 \u0111\u1ebfm nh\u1ea3y c\u00f3c. \u0110\u00e2y l\u00e0 c\u00e1ch d\u1ea1y tr\u1ebb l\u1edbp 1 h\u1ecdc to\u00e1n \u0111\u01a1n gi\u1ea3n nh\u01b0ng r\u1ea5t hi\u1ec7u qu\u1ea3. \u0110\u1ea7u ti\u00ean, b\u1ea1n d\u1ea1y b\u00e9 \u0111\u1ebfm c\u00e1ch 2 \u0111\u01a1n v\u1ecb: 0,2,4,6,8,10 (c\u1ea3 xu\u00f4i v\u00e0 ng\u01b0\u1ee3c). Ti\u1ebfp theo, b\u1ea1n cho b\u00e9 hi\u1ec3u s\u1ed1 li\u1ec1n sau = s\u1ed1 li\u1ec1n tr\u01b0\u1edbc + 2 \u0111\u01a1n v\u1ecb v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. <\/span>C\u00e1ch \u0111\u1ebfm nh\u1ea3y c\u00f3c n\u00e0y gi\u00fap b\u00e9 nh\u1edb k\u1ef9 h\u01a1n d\u00e3y s\u1ed1 trong ph\u1ea1m vi 10. B\u00ean c\u1ea1nh \u0111\u00f3, b\u00e9 s\u1ebd h\u1ecdc ph\u00e9o c\u1ed9ng 2 \u0111\u01a1n v\u1ecb d\u1ec5 d\u00e0ng h\u01a1n.\u00a0<\/span><\/p>\n

B\u01b0\u1edbc 3: D\u00f9ng que t\u00ednh<\/h2>\n

L\u00fac n\u00e0y b\u00e9 \u0111\u00e3 n\u1eafm r\u1ea5t r\u00f5 d\u00e3y s\u1ed1 trong ph\u1ea1m vi 10, so s\u00e1nh \u0111\u01b0\u1ee3c c\u00e1c s\u1ed1 \u0111\u00f3. \u0110\u00e2y l\u00e0 th\u1eddi \u0111i\u1ec3m b\u1ea1n c\u00f3 th\u1ec3 d\u1ea1y b\u00e9 h\u1ecdc ph\u00e9p t\u00ednh c\u1ed9ng v\u00e0 tr\u1eeb trong ph\u1ea1m vi 10. \u0110\u1ec3 d\u1ec5 hi\u1ec3u nh\u1ea5t, h\u1ea7u nh\u01b0 c\u00e1c b\u00e9 \u0111\u1ec1u c\u1ea7n d\u00f9ng \u0111\u1ebfn que t\u00ednh. Que t\u00ednh ch\u00ednh l\u00e0 c\u00e1ch d\u1ea1y tr\u1ebb l\u1edbp 1 h\u1ecdc to\u00e1n b\u1eb1ng v\u00ed d\u1ee5 minh ho\u1ea1 cho \u0111\u1ed9 l\u1edbn v\u00e0 m\u1ed1i quan h\u1ec7 c\u00e1c ph\u00e9p t\u00ednh v\u1edbi c\u00e1c con s\u1ed1.\u00a0<\/span><\/p>\n

\"V\u00ec
V\u00ec ph\u00e9p t\u00ednh trong ph\u1ea1m vi 10 n\u00ean c\u00f3 th\u1ec3 \u0111\u1ebfm b\u1eb1ng tay thay cho que t\u00ednh<\/figcaption><\/figure>\n

V\u00ed d\u1ee5: mu\u1ed1n t\u00ednh 1 + 1, b\u1ea1n \u0111\u01b0a ra 1 que t\u00ednh v\u00e0 th\u00eam 1 que t\u00ednh n\u1eefa. B\u1ea1n y\u00eau c\u1ea7u b\u00e9 \u0111\u1ecdc s\u1ed1 que t\u00ednh t\u1ea5t c\u1ea3 \u0111ang c\u00f3. Khi \u1ea5y, b\u00e9 s\u1ebd \u0111\u1ecdc 1, 2. Nh\u01b0 v\u1eady, 2 ch\u00ednh l\u00e0 \u0111\u00e1p \u00e1n c\u1ee7a ph\u00e9p t\u00ednh 1 + 1. T\u01b0\u01a1ng t\u1ef1 nh\u01b0 v\u1eady, b\u1ea1n l\u00e0m nhi\u1ec1u ph\u00e9p t\u00ednh c\u1ed9ng, tr\u1eeb kh\u00e1c nhau. \u0110\u1ebfn m\u1ed9t l\u00fac n\u00e0o \u0111\u00f3, b\u00e9 s\u1ebd hi\u1ec3u m\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c s\u1ed1 v\u00e0 ph\u00e9p t\u00ednh. \u0110\u1ed3ng th\u1eddi, b\u00e9 s\u1ebd hi\u1ec3u th\u1ebf n\u00e0o l\u00e0 ph\u00e9p c\u1ed9ng, th\u1ebf n\u00e0o l\u00e0 ph\u00e9p tr\u1eeb. M\u1ed9t s\u1ed1 b\u00e9 th\u00f4ng minh h\u01a1n s\u1ec5 ghi nh\u1edb \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 c\u1ee7a nh\u1eefng ph\u00e9p t\u00ednh \u0111\u00f3.<\/p>\n

B\u01b0\u1edbc 4: L\u1ed3ng gh\u00e9p tr\u00f2 ch\u01a1i, th\u1eed th\u00e1ch v\u00e0o ph\u00e9p t\u00ednh<\/h2>\n

N\u1ebfu nh\u01b0 que t\u00ednh \u1edf tr\u00ean l\u00e0 d\u1ee5ng c\u1ee5 h\u1ecdc t\u1eadp th\u00ec b\u00e9 c\u00f3 th\u1ec3 nh\u00e0m ch\u00e1n sau khi ti\u1ebfp x\u00fac qu\u00e1 nhi\u1ec1u. Khi \u1ea5y, c\u00e1ch d\u1ea1y tr\u1ebb l\u1edbp 1 h\u1ecdc to\u00e1n hay h\u01a1n l\u00e0 thay que t\u00ednh b\u1eb1ng nh\u1eefng v\u1eadt d\u1ee5ng b\u00e9 y\u00eau th\u00edch h\u01a1n. Ch\u1eb3ng h\u1ea1n nh\u01b0 10 vi\u00ean k\u1eb9o, 10 chi\u1ebfc kep t\u00f3c, 10 m\u1ea3nh lego, 10 vi\u00ean s\u1ecfi m\u00e0u, 10 vi\u00ean bi…<\/span><\/p>\n

\"C\u00e1c
C\u00e1c ph\u00e9p t\u00ednh \u0111\u01b0\u1ee3c l\u00e0m m\u1edbi b\u1eb1ng nh\u1eefng \u0111\u1ed3 v\u1eadt \u0111\u00e1ng y\u00eau, g\u1ea7n g\u0169i<\/figcaption><\/figure>\n

S\u1ef1 thay \u0111\u1ed5i n\u00e0y gi\u00fap b\u00e9 h\u1ee9ng th\u00fa h\u01a1n. V\u00ec \u0111\u00e2y v\u1eeba l\u00e0 v\u1eadt y\u00eau th\u00edch v\u1eeba c\u00f3 th\u1ec3 thay \u0111\u1ed5i h\u00e0ng ng\u00e0y t\u1ea1o s\u1ef1 m\u1edbi m\u1ebb. Nh\u1edd \u0111\u00f3, vi\u1ec7c h\u1ecdc to\u00e1n c\u0169ng tr\u1edf n\u00ean th\u00fa v\u1ecb h\u01a1n. Kh\u00f4ng nh\u1eefng th\u1ebf, b\u00e9 t\u1eadp trung h\u01a1n s\u1ebd mau ti\u1ebfn b\u1ed9 h\u01a1n.<\/p>\n

N\u1ebfu c\u00f3 \u0111i\u1ec1u ki\u1ec7n, b\u1ea1n n\u00ean cho b\u00e9 thay \u0111\u1ed5i m\u00f4i tr\u01b0\u1eddng h\u1ecdc. V\u00ed d\u1ee5 nh\u01b0 b\u1ea1n ra v\u01b0\u1eddn v\u00e0 ki\u1ebfm 10 chi\u1ebfc l\u00e1, 10 b\u00f4ng hoa, 10 qu\u1ea3 nho… T\u01b0\u01a1ng t\u1ef1 nh\u01b0 v\u1eady, b\u1ea1n c\u00f3 th\u1ec3 c\u00f9ng b\u00e9 h\u1ecdc t\u00ednh \u1edf b\u1ea5t k\u1ef3 n\u01a1i n\u00e0o c\u00f3 nh\u1eefng m\u00f3n \u0111\u1ed3 nh\u1ecf nh\u1eafn, xinh x\u1eafn.<\/p>\n

Tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng c\u00e1ch d\u1ea1y tr\u1ebb l\u1edbp 1 h\u1ecdc to\u00e1n \u0111\u01a1n gi\u1ea3n nh\u01b0ng l\u1ea1i r\u1ea5t hi\u1ec7u qu\u1ea3. B\u1edfi v\u00ec c\u00e1ch n\u00e0y r\u1ea5t ph\u00f9 h\u1ee3p v\u1edbi t\u00e2m l\u00ed tr\u1ebb nh\u1ecf. C\u00e1ch ti\u1ebfp c\u1eadn \u0111i t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn ph\u1ee9c t\u1ea1p. C\u00e1c ph\u00e9p t\u00ednh li\u00ean t\u1ee5c kho\u00e1c \u00e1o m\u1edbi mu\u00f4n h\u00ecnh v\u1ea1n tr\u1ea1ng. \u0110\u1eb7c bi\u1ec7t, n\u1ebfu ng\u01b0\u1eddi l\u1edbn t\u1ea1o \u0111\u01b0\u1ee3c kh\u00f4ng kh\u00ed vui v\u1ebb, v\u1eeba ch\u01a1i v\u1eeba h\u1ecdc th\u00ec c\u00e1c b\u00e9 s\u1ebd c\u00e0ng mau ti\u1ebfn b\u1ed9 v\u00e0 h\u00e0o h\u1ee9ng h\u01a1n n\u1eefa.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

H\u1ea7u h\u1ebft nh\u1eefng b\u00e9 m\u1edbi v\u00e0o ti\u1ec3u h\u1ecdc th\u01b0\u1eddng ch\u01b0a l\u00e0m quen \u0111\u01b0\u1ee3c v\u1edbi vi\u1ec7c h\u1ecdc. V\u00ec th\u1ebf cha m\u1eb9 c\u1ea7n d\u00e0nh th\u00eam th\u1eddi gian m\u1ed7i ng\u00e0y \u0111\u1ec3 \u0111\u1ed3ng h\u00e0nh v\u00e0 gi\u00fap \u0111\u1ee1 con. Trong \u0111\u00f3, c\u00e1ch d\u1ea1y tr\u1ebb l\u1edbp 1 h\u1ecdc to\u00e1n l\u00e0 m\u1ed9t trong nh\u1eefng \u0111i\u1ec1u ph\u1ee5 huynh quan t\u00e2m nh\u1ea5t.\u00a0 M\u00f4n to\u00e1n<\/p>\n","protected":false},"author":1,"featured_media":6631,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3347],"tags":[7222],"class_list":{"0":"post-6618","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-nuoi-day-con","8":"tag-cach-day-tre-lop-1-hoc-toan"},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/kynaforkids.vn\/blog\/wp-json\/wp\/v2\/posts\/6618","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kynaforkids.vn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kynaforkids.vn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kynaforkids.vn\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kynaforkids.vn\/blog\/wp-json\/wp\/v2\/comments?post=6618"}],"version-history":[{"count":0,"href":"https:\/\/kynaforkids.vn\/blog\/wp-json\/wp\/v2\/posts\/6618\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kynaforkids.vn\/blog\/wp-json\/wp\/v2\/media\/6631"}],"wp:attachment":[{"href":"https:\/\/kynaforkids.vn\/blog\/wp-json\/wp\/v2\/media?parent=6618"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kynaforkids.vn\/blog\/wp-json\/wp\/v2\/categories?post=6618"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kynaforkids.vn\/blog\/wp-json\/wp\/v2\/tags?post=6618"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}