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Tran Thanh Thuang vo O/^ Tap chi KHOA HOC & CONG NGHE \ \ N D l N f ; D A Y H O C P H A T H H N \ A G I A I Q l \ET \ M ) iy\\ Il4(l4i 03 108 \ AN DE H O C I T \ H O C L O P 11 T H P T Tran Thanh Thuong' Triln Oiic Han' Trinh Thi Phuong Than' •Dai hoc Thai \gine'i " y- (fllADI Iain l> ,' ': lirong DUI hot Sir pham - Dll Thai \gu\i i lOMT.AT Tren CO so kc ihira, van dung sang tao nhirng kei qua van dung day hoc phai hien va giai quyel van de Uong day hpc loan va cac mon hoc khac a truong THPT bai bao dc cap va minh hoa viec van dung day hoc phiit hien va giai quyet van de vao day hoc tin hoe lop I THPT Tir khoa: Phirong phdp day hoc lin hoc Day hoc phdl hiin vd gun c/inel vdn de, Ddi mdi PPDH tin hoc DAT VAN DL Day hgc phat hidi va giai q u y d van de (DH PII&GQ VD) la mot nhiTng p h u o n g phiip day hoe ma d giao vien (GV) la ngudi tao linh huong goi van de to chirc dieu khien hpc sinh (HS) phat hidi viin dc IIS boat dgng tu giac lich cue, chu dting va sang tao giai quycl van dc Thong qtiii trinh gihi quyet van de ma kien tao in Ihirc ren luyen ky nang nhiim dat d u o e nhung muc dich hgc tap khac | | , DH PH&CiQ VD bao liiuu cac dac irung co b;iii sau: - Huy dting nhirng tri thuc ky nang va kinh nghiem da tich lily duoc de dira duoc phuong phiiting giai quycl van de - Kiem tra tinh kha thi cua each giai quyel van de, - Dira ciich giai quyet viln dtJ - Tu ban thiin xiic dinh rti nluing kien thiic, k^C nang kmh nghieni thu tluoc sau giai quycl xong viln de Muc tlich ciitii cimg la IIS luini virng dutic In tluic Yen luyc'ii ky nang ky xao yii hoe duoc - HS dugc diit viio nuil tinh Inning gtri yfui dc chir khdng pluil hi dutyc von lluing biit) In thirc dudi dang eti siin - l i s hoat dting tu giiie tich cue chu dting Siing lao liln lire huy dgng In thitc Vii kha niing ciia minh t!c pluil Indi va giai tjiiycl van de chll khong phai chi nghe thiiy giang nuil each thu dting: - Muc dich day htic kluing chi ki IIS Imh luii ttuiTc kt;l qua eua t|Uii trinh pluil Inen vii giai quyel viin de nui cim tV cho lam cho IIS pluil tiii'ii khii niing lien hiinli nhung qua iriiiii nhu Viiy Ntii Ciich khiie, IIS dutrc hoe viec hoe liong qua Irinh day htic G \ ' can lui tro IIS hoiin Ihiinh ciic n h i d n v u sau - Phiil hidi duoc viin de (HS ciin xiic dtnh rti ban lliilii thing d u n g irutic iro ngiu ihiieli tluic lliil-)'' Villi dtj diii o diiy cu ihc hi gi'' Nay ciich ihue "Iir kham phii" In lluic \liinig iltiin cdn Iun i kin MIII ilitng ihn hoc phdt hiin vu gun qiiyel vim di - DII PIIoi MOC hmh phal men lu q u y d biii toan nhir siiu dii\ Ihiiiil giai cho HS Trjn Thanh Thuong lii 0/,t> Khai th,ac moi quan Tap chi KHOA HOC & CONG NGHE he giiJa \ iec DH 114(14): 103-108 \ iec co tinh chat lap K h o n g ft HS nhan dang P H & O Q V D voi vice hinh ky nang lam nham day la cau lenh re nhanh bai tap theo nhom cira HS, Thao tac nhap so N tir ban phim dien trircrc Vi du 4: ViSt c h u o n g trinh nhap tir ban phim ''^•'° '^'= ki^m tra s N co thoa man N < 100 s6 nguyen d i r o n g N (N < 100) [2|, '^"^ ^'™"S * = " " ' ' ' " • "T™"* '=''™"8 trinh Tin hoc 11 chi gidi ihieu cau lenh While., _^-,^ ,.,5 ^.,,^„ ^.,^„ ^,^; ^-^ j ^ , , ^ ^ ^.^, t^,,,^ Thuc te cho thay HS Ihudng gap kho khan cac hoat dong sau While iio de giai q u y d cong v iec nay, Viec nhap so N chi k d lluic ta da nhap Q y ^^ j | ^ ^ ^ , ^.|,„,, p]^uGng an van diing dam ^6 N thoa man N < 100 Vay dav la mgt cong ^ ^i^^^f p]^^t h i d i va giai q u y d v^n dc nhu sau Hoai ddng cua CV ]?J Lam Ihc nao dc bieu dien so nguyen duoiu; N ' Yeu cau ve khoane 2ia In cua N'^ I2J VicI cau lenh nhiip N tii biin phim Hoat ddng cva HS _^ ^ -N la bien kieu so nguyen -Khai bao bien N Var N inieuer -Boi vi N la so nguyen duang nho hon 100 nen: I/;(.' Tap chi KHOA HOC & CONG NGHE 114(14) 103- 108 \'i du 5, Mgl ngirdi gui tiet kiem khong kl han vdi so lien \ d o n g vdi lai suat 0.3 % moi thang Hoi sau bao nhieu thang, ngudi riit het lien vt; thi se nhan d u a c sd lien it nhal la B dong? Biet rang vtii viec giri t i d kiem khong ki han thi lai khong duac cong vao von [2] (,V huong d i n HS giai quySt bai tiip nav bang >i n l ' i giai q u y e t : - H a y ^er bai toan cich dua^ra ggi y v j thuat toan theo thuc tJ nhir sau: ' ™ * " g ' ' " P '=' '^'•'"^ '">"'i " ° " ' " • KET LUAN Goi th la so thang ciin giri titit kiem so tien ciin ci^ lat Wrileln ("se nhan duoc so lien dong): Readhu , b 16 End GV CO the neu Iinh hiionii ogi viin de dc IkS Phuong phap Dll PH&CjQ VD la mot irong nhirng p h u o n g phap day hoc tich cue, phat Budc 1: Ban d.au: th