Thousands of teachers at almost 540 Catholic schools across NSW and the ACT are on strike as they call for pay increases and better conditions.
Teachers planned to march from Sydney's Town Hall to the head office of the Catholic Archdiocese of Sydney on Friday, one of several rallies taking place around NSW and Canberra.
Newcastle, Wollongong, Bathurst, Dubbo, Lennox Head, Port Macquarie, Tamworth and Wagga Wagga also held rallies on Friday morning.