tu lic^u giang day dua tren nhirng tu lieu ngon ngfr dich thue ha\ ngon ngir tir euc^c song thue tc. Nhung tu lieu dieh thuc niu thucrng bao gi)m nhung tu lic:u true quan nhu dc^ diing day hgc, bicMi, bang, bieu, biio ehi, quimg eiio dua \ ao dc) nguoi da\ khai thac va hucrng dan nguiri hgc giao tiep biing tic}ng Anh.
Tir goc nhin ciia nhirng ngucri nghien cim ve day tieng Anh chuyen nganh, Hutchinson & Waters (2005) da chi ra sau chirc nang ciia tu lic^u giang day. Sau chirc nang nay co vai tro nhu la nhirng nguyen tac ca ban hucmg dan viec phat trien tu lieu giang day tieng Anh chuyen nganh. Nhirng nguyen tac nay cung co the ap dung dugc cho quy tiinh phat trien tu lieu tieng Anh noi chung.
a) Tu lieu giang day kich thich hgc tap. Theo Hutchinson & Waters (Ibid.) tu
lieu giang day tot khong day ma khuyen khich ngucri hgc hgc tap; va de thuc hien ducrc chirc nane khuven khich mzuiri hoc thi tu lieu eiana dav
phai ehira dung nhirng ngc^n ban (bai khoa) thu vi, cac boat dgng thu vj
khuyen khieh kha nang tu duy eiia nguai hgc, va cac ca hcri de ngucri hgc sir dung nhirng kien thirc va kT nang hg hien co.
b) Tu liciu giang day giiip to chirc qua trinh day va hgc, bang viec cung cap each tiep can (mc)t eon ducmg di qua) mcV ngon ngir phirc tap phai hgc.
llutehmson & Waters (Ibid.) gcri y rang tu liclm giang da\ ciin phai dugc
phiu trien theo hucrng ci) cau triic cac dcm vi bai giimg ehiit che va rC rang, hucTug clan ea ngucn da> \ a ngucn hcK su dung ducrc nhimg hoat dc)ng giao tiep eo hicju qua nhiit nhiim tc*>i da hoa eac ccr hc)i hgc tap; nghia la, no c6 the eiiip nguiri da\ \iet ducre giao im eiie hai giang \ a khu\en khieh nguai hc^ eo ducre cam giac thanh ccnig trong qua trinh hgc tap.
e) l u liim giang da> ehira dung quan diem \ e ban ehiit eiia ngon ngir va hgc
tap. Trong khi phat trien tu heu giang da\. nguoi thiet ke thucmg khong de \ nhiem den \ a n dc: nay \ e mill li thu\et nhung trong thue te thong qua viec lira chon tu heu dim \ a o \ a phat trien ciic boat dc>ng giao tiep, hg thuang the h\cn quan dieMU eua mmh \ e \iee ngi)n ngir ducre hinh thanh tir nhimg gi. \)o do lu lic}u giang da\ phai phan anh quan diem eiia ngucri phat men