Nine out of ten second-level teachers believe their schools have limited or no capacity to implement proposed Junior Cycle reforms.
That is according to a survey carried out on behalf of the Association of Secondary Teachers, Ireland.
The survey found more than three quarters of teachers favour a one-year deferral of the reforms to give schools time to plan.
Almost 2,000 teachers responded to the survey, conducted by Millward Brown on behalf of the ASTI.
It was released ahead of next week's annual teachers' conferences where the minister's Junior Cycle reform proposals are sure to be a big talking point.
The survey found just 11% of teachers said their school was ready for the new programme.
Three quarters wanted deferral, more information and more training.
Compared to a similar survey carried out five years ago, the study also recorded a big drop in teacher morale.
The main issues affecting job satisfaction included an increase in the amount of administrative duties, marking and preparation, and frustration at not being able to spend enough one-on-one time with students.