The council report said that officers had been aware for "some years" of support for the move.
It said it had been important to undertake a "comprehensive consultation" to find out the views of everyone involved.
"The level of engagement demonstrates that this is not an easy decision, and that people have strong views," it added.
However, it concluded that given the range of concerns raised it would be better to maintain the current structure of the week.
The move has been welcomed by the local branch of the teaching union the Educational Institute of Scotland (EIS).
Association secretary Andrew O'Halloran said: "There were too many unanswered questions for the proposals to have been rolled out across the authority."
He said the council had been unable to provide the union with clarity on the impact of a number of aspects of the plans.
He added that the union looked forward to working on other ways to improve education in the region.