de trach bi can thi thi tu the ngoi hoc va khoang cach tu mat den sach phai hop li

- khoang cach tu mat voi sach vo la: 25cm-30cm

- khong ngoi o nhung noi bong toi de hoc bai.

- ngoi thang lung.

- dam bao anh sang du do khong sang qua hoac yeu qua de tranh gay can thi.

mayhat nuoc nho li ti.hoi nuoc.nuoc song,ho,bien.mua.nuoc song ho bien. vong tuan hoan nuoc:

- ha noi la thu do viet nam , la trung tam trinh tri - hanh chinh quoc gia co nen van hoa giao duc va koa hoc,ki thuat hang dau cua nuoc .

doi song vat chat

nguoi viet co su dung luong thuc chinh la gao nep , gao te ; pho bien la o nha san;nam thuong dong kho,minh tran,nu mac vay ,ao yem.ho di chuyen chu yeu tren song bang thuyen be.

doi song tinh than

nguoi viet co tin nguong tho cung to tien , nguoi co cong,cac vi than tu nhien nhu[ than song , than nui, than mat troi,.....]. trong nhung ngay le hoi ho thuong nhay mua , thoi ken , danh trong, dua thuyen ,.....

thuan loi la

dia hinh rat da dang ,khi hau voi mua dong lanh gia la dieu kien de phat trien cac loai cay , dac biet la cay xu lanh.tren cac cao nguyen co nhieu dong co de chan nuoi gia suc nhu [ trau,bo,de,lon,vit,....]. song ngoi tren dia hinh doc tao dieu kien phat trien thuy dien.day co la vung co nhieu canh dep de phat trien du lich.

kho khan la

dia hinh ,khi hau,song ngoi gay ra rat nhieu thien tai nhu[ lu quet , sat lo,ret dam ,ret hai,............].anh huong den doi song va san xuat. dia hinh doc, phuc tap la tro ngai trong giao thong.

90 l dầu