Laws which mean schools have to teach "Christian focused" Religious Education (RE) and hold a daily act of collective worship should be scrapped, a University of Ulster (UU) research paper has said.
It says more "controversial issues" should be taught in classrooms.
There should also be "joint community schools" rather than religiously segregated ones.
Those are some of the suggested changes to NI's education system.
The paper, from UU's Unesco Education Centre, sets out a "vision" for a single education system.
It also said that Northern Ireland could not afford the current "costly, inefficient and unsustainable" system.
