British EnglishBrESES a teacher who works at different schools doing the work of other teachers who are ill, on courses etc 代课教师SYN American English substitute teacher
Examples from the Corpus
supply teacher• Second, ensure there is a supply teacher available and prepare a schedule of work for all your classes.• A wandering supply teacher came to our rescue.• Returned bus list to Office. 9.15: Checked with supply teacher if she needed my help while Welfare Assistant was out.