Kha nang ciia ngudi giao vien trong viec dua ra nhung Icri giai thich ro rang va dung trgng tam cho hgc sinh va lam ro nhiing ki vgng ciia minh doi v6i thanh tich ciia hgc sinh la mot khia canh quan trgng cua viec thirc hanh giang day hieu qua. NhOng giao vien hieu qua mong mudn hgc sinh minh cham hgc, va hg chiu trach nhiem dam bao hgc sinh hgc tot. H g dat ra nhiJng chuan mirc cao va bao dam mot chuong trinh thu thach nang lire hgc sinh. Mac dii thanh tich hgc tap ciia hgc sinh lien quan de'n cac phuong phap giang day ma ngudi giao vien ap dung, viec the hien ro sir ki vgng ciia giao vien va giai thich ro rang la mot k l nang khac khong kem phan quan trgng lam nen sir hieu qua ciia ngudi giao vien.
Giao tiep la mot yeu to co ban doi vdi bat k i nghe nao cd sir tuong tac giira ngudi vdi ngudi hay trong pham vi mot to chiic. Nghe day hgc khdng phai la ngoai le. Sir rd rang trong giai thich - mot kT nang giao tie'p quan trgng - dugc the hien theo hai each ca ban trong qua trinh giang day. Trudc tien, nd lien quan den kha nang ciia giao vien trong viec giai thich ngi dung rd rang va diing trgng tam, chi ra dugc cac khai niem va mdi quan he giiia chung..Thiir hai, kha nang dd lien quan den viec giai thich nhung yeu cau trudc khi hgc sinh tien hanh mot boat dong. Hon the niJa, cdng viec ciia giao vien ddi hdi phai truyen dat rd cho hgc sinh nhung k i vgng, su khich le va quan tam mot each rd rang. Nhung dieu tren khdng chi lien quan de'n hgc sinh ma ca phu huynh hgc sinh. Nhung giao vien hieu qua thong bao cho phu huynh hgc sinh nhiJng k i vgng cua hg ve su phat trien ciia hgc sinh va cho phu huynh biet each cac em dugc danh gia tien bd nhu the nao (Allington, 2002). Tuy nhien, quan trgng nha't v l n la kha nang truyen tai ngi dung giang day. De giang day hieu qua, giao vien phai hieu rd ngi dung kien thiic va biet each chia se thdng tin vdi hgc sinh de cac em hieu sau va tie'p thu dugc tot nhat (Phong danh gia giao due, 1998; Rowan, Chiang, & Miller, 1997).
Sir giao tiep hieu qua ve phia giao vien khdng chi bao gdm giao tiep mot chieu tir giao vien den hgc sinh ma ca giao tiep tir hgc sinh de'n giao vien va giira hoc sinh vdi nhau. Giao vien hieu qua tra Idi cac cau hdi va hdi dap nhung