Art and woodwork teachers have raised concerns.
Teachers are raising concerns about how they will manage in scenarios where students need to share equipment.
The ASTI says its received calls from Art and woodwork teachers as schools prepare to reopen.
There's also questions being raised about whether students will be allowed off the school grounds for lunch, as they may congregate outside shops.
ASTI President Ann Piggott says some schools are planning to stagger lunch breaks.
''Some schools have decided that they're not going to have all of the students out at lunch time.
''I heard of a school yesterday with approximately 500 students, who are leading them out at three different times.
''So I guess you reduce the risk of big groups of so many people being together''.
