Nhat thuc nguyet thuc su trung phung ky la cua thien nhien
Mat trang quay quanh trai dat, dong thoi trai dat cung dem theo mat trang quay quanh mat troi. Khi mat trang quay den vi tri giua trai dat va mat troi, ba thien the nam tren mot duong thang hoac gan cung mot duong thang, luc do mat trang se che khuat mat troi va xay ra nhat thuc.
09:13 21/06/2001
Tai sao da so con trung khong the di duong thang
Voi 2 chan, ga di hoi lac lu, nhung vi khoang cach giua cac buoc kha deu, nen no di thang. Co 4 chi bang nhau, de, lon trau, bo, ngua cung di rat "nghiem chinh", do hai cap chan trai phai hoat dong an y. Tuy nhien, dai da so con trung lai di theo duong zic zac.
17:26 04/09/2002
Voi phan dao ham va khao sat ham so, hoc sinh can tap xac dinh, tap gia tri cua ham so. Dau nhi thuc bac nhat, dau tam thuc bac hai. Ham so chan, ham so le, ham so tuan hoan. Cac quy tac tinh dao ham.
15:45 12/04/2006
Chuong trinh on thi DH mon Toan
Mot trong nhung bi quyet de on thi tot la he thong hoa va nam vung duoc cac kien thuc co ban - quan trong nhat cua chuong trinh hoc. Duoi day la he thong hoa kien thuc cac mon thi DH. Phan dau tien se la mon Toan.
11:22 04/04/2006
Bo GD-DT vua ban hanh Huong dan on thi tot nghiep Bo tuc THPT nam hoc 2006-2007. Duoi day la huong dan on tap cua mon Toan.
14:27 17/04/2007
Bi an lon nhat trong lich su loai nguoi
Khong noi nao tren the gioi lai co the khuay dong tri tuong tuong cua con nguoi nhu sa mac Nazca. Du da co nhieu nghien cuu nghiem tuc cua cac nha khoa hoc, Nazca van tiep tuc la “hien tuong bi an nhat trong lich su loai nguoi”.
09:14 09/12/2005
Hoc sinh du thi tu tai chu y
Chi con hon mot tuan nua, cac em hoc sinh lop 12 se buoc vao ky thi tot nghiep THPT nam hoc 2005-2006. De giup cac em chuan bi chu dao va dat ket qua tot trong ky thi sap toi, thay Luong Mau Dung da co doi loi nhan nhu nhu sau:
09:06 17/05/2006
Pha khong gian hinh cau hay la tiem Vacxin mien nhiem
1. Da co lan toi dung lai that lau o mot suy nghi: Neu Van Quyen dau thai vao cai thoi 1960 - 1970, va nguoc lai, nhung ngoi sao san co cua cai thoi do (Tu Nhu Hien, Le Van Dang, Le Mai Tu…) dau thai vao cai thoi cua Van Quyen, lai dau thai o mot manh dat BD “lam nguoi nhieu..
11:17 08/03/2007
Huong dan on tap TN THPT 2005 mon Toan
TS tiep tuc gui den cac ban phan Huong dan on tap ki thi tot nghiep THPT nam hoc 2004 - 2005, mon Toan
18:25 16/05/2005
Mot trong nhung bi quyet de on thi tot la he thong hoa va nam vung duoc cac kien thuc co ban - quan trong nhat cua chuong trinh hoc. TS se lan luot giup cac ban he thong hoa kien thuc cac mon thi DH. Phan dau tien se la mon Toan.
20:24 03/04/2006
Huong dan on thi tot nghiep THPT ky 5 mon Vat ly Toan
Bo GD-DT da co huong dan noi dung on tap doi voi ky thi tot nghiep THPT nam hoc 2005-2006 danh cho HS lop 12 (huong dan rieng cho tung chuong trinh khong phan ban va phan ban).
07:14 10/04/2006
Hoc sinh du thi tot nghiep THPT chu y
Chi con hon mot tuan nua, cac em hoc sinh lop 12 se buoc vao ky thi tot nghiep THPT nam hoc 2005-2006. De giup cac em chuan bi chu dao va dat ket qua tot trong ky thi sap toi, toi co doi loi nhan nhu nhu sau:
10:33 17/05/2006
Khong gian va thoi gian
Nhung y niem cua chung ta hien nay ve chuyen dong cua cac vat bat nguon tu Galileo va Newton. Truoc ho, nguoi ta tin Aristotle, nguoi da noi trang thai tu nhien cua mot vat la dung yen va no chuyen dong chi duoi tac dung cua mot luc hoac mot xung luc. Tu do suy ra rang vat nang..
15:00 06/12/2006
Huong dan on thi bo tuc THPT nam 2007 mon Toan Vat ly
TS gui den cac ban hoc sinh huong dan on tap thi tot nghiep bo tuc THPT nam hoc 2006-2007 mon TOAN va VAT LY theo huong dan cua Bo GD-DT.
15:29 16/04/2007
Duong thang va duong vong
Khai niem "duong thang va duong vong, duong nao ngan va it chi phi hon?", thong thuong cau tra loi se la: duong vong thi lau hon va ton chi phi hon. Tuy nhien, cau tra loi tuong chung la chan ly ay lai co vo so nhung cau tra loi va nguy bien khac nhau.
23:45 24/07/2004
Bua tiec Truyen ngan cua Mai Son
Nang cam canh hoa hong dua len mui. Chiec mui nho hoi nghieng xuong, thay ro mot duong thang anh len giua khuon mat, hai canh mui khe dong day. Luc nay, chi voi khuu giac tham kin cua minh thoi, nang dang chiem huu anh tu tu. Nang hoi he moi nhu hop mot ngum khong khi. Bat giac..
16:57 26/11/2005
Hoc sinh du thi tu tai chu y
Chi con hon mot tuan nua, cac em hoc sinh lop 12 se buoc vao ky thi tot nghiep THPT nam hoc 2005-2006. De giup cac em chuan bi chu dao va dat ket qua tot trong ky thi sap toi, toi co doi loi nhan nhu nhu sau:
22:20 16/05/2006
Lam quen voi Coreldraw Bai 9 Cac cong cu ve duong
Nhung cong cu ve duong trong CorelDRAW 12 cho phep tao ra nhung duong thang hoac duong cong qua cac diem. Doi tuong duoc tao ra bang nhung cong cu ve duong co the thay doi mot so thuoc tinh nhu: do day, mau sac...
18:38 06/08/2006
Ve qua dia cau
Buoc 1- Chon cong cu ve hinh tron (Ellipse Tool), ve hinh tron co duong kinh la 10 cm bang cach nhan Ctrl + click chuot trai va keo cheo. - Tren thanh thuoc tinh o o Object(s) Size go so 10 cm, o o Nonproportional Scaling/Sizing Ratio chon bieu tuong hinh o khoa (dang khoa).
17:06 24/09/2006
Cong nhu duong thang
Ca ro va nhung duong soc von tao net nam tinh, manh me cho trang phuc. Nhung nhung duong net dut khoat ay co luc lai lam thanh nhung mang mem mai, diu dang, nhat la khi uon theo nhung duong cong quyen ru cua co the. TNTS xin gioi thieu cung cac ban bo suu tap nhung o vuong,..
14:34 12/01/2007
Huong dan on thi tu tai mon Vat ly Toan
Bo GD-DT da co huong dan noi dung on tap doi voi ky thi tot nghiep THPT nam hoc 2005-2006 danh cho HS lop 12 (huong dan rieng cho tung chuong trinh khong phan ban va phan ban).
10:07 12/04/2006
Cong bo cau truc de thi trac nghiem mon Toan
Nham tao dieu kien cho hoc sinh lam quen voi hinh thuc thi trac nghiem mon Toan, Bo GD-DT da dua ra cau truc du kien ve de thi. Theo do, so luong cau hoi trac nghiem mon Toan trong ki thi tot nghiem THPT nam toi la 40 cau, tuyen sinh DH, CD la 50 cau.
16:06 06/09/2007
Nhom bo loc DISTORT
Nhom bo loc Distort bao gom mot so bo loc co kha nang bien doi hinh anh cua ban thanh mot cum diem anh roi ram, lon xon. Chung uon luon thanh lan song, chay theo duong Zigzag, tao hinh cau,gon song,xe dich,va noi chung lam roi loan noi dung cua hinh anh de tao hieu ung dac biet...
10:43 20/03/2006
Nhip thang trong can nha hien dai
Nhung lam go song song tren tran va tuong, nhung duong thang dan xen vao nhau… tao cho can ho khac biet so voi chung quanh va noi bat, day ca tinh.
09:31 12/01/2007
Sa mac Nazca bi an lon nhat trong lich su loai nguoi
Khong noi nao tren the gioi lai co the khuay dong tri tuong tuong cua con nguoi den nhu vay. Do chi co the la sa mac Nazca.
08:24 09/12/2005
TP - Bo GD-DT vua co cong van gui cac So GD-DT, cac truong THPT truc thuoc Bo ve viec huong dan on thi tot nghiep THPT va on tap cuoi nam lop 9 THCS nam hoc 2005 – 2006.
22:42 05/04/2006
Duoi day la huong dan on thi tot nghiep THPT mon Toan nam hoc 2005 - 2006 cua Bo Giao duc va Dao tao danh cho hoc sinh thuoc Ban Khoa hoc tu nhien.
18:17 13/04/2006
Huong dan on tap thi tot nghiep THPT mon Toan ban khoa hoc xa hoi nhan van
Chuan bi cho ky thi tot nghiep THPT nam hoc 2005 - 2006, Bo GD-DT da co huong dan on tap mon Toan cho chuong trinh phan ban thi diem - Ban Khoa hoc xa hoi - nhan van.
17:35 13/04/2006
