The General Secretary of the ASTI has said there would be "a number of problems" associated with a hybrid Leaving Cert model this year.
His comments came after an online survey carried out by the Irish Second Level Students' Union found that 68% of Leaving Cert students want a hybrid State exam model this year.
Speaking on RTÉ's News at One programme, Kieran Christie said the ASTI does acknowledge that it is a difficult position for everybody, but they are "strongly of the view" that the established Leaving Cert should go ahead.
Mr Christie said adjustments have been made and "more could potentially be made" in relation to examination papers to account for the disruption to face-to-face teaching that has happened to this cohort of students.