Perth and Kinross has dropped its opposition to teachers taking part in Higher Still developments. The council's SNP-run education committee on Wednesday agreed to revise the former Tayside Region's policy of non-cooperation.
Officials argued that schools would be disadvantaged if they were excluded and said the Scottish Office had provided Pounds 58,000 to carry out local consultations.
The new policy allows teachers and advisers to take part voluntarily in planning new units. There will also be an opportunity for whole-school developments.
Councillors, however, acknowledged teacher concerns about workload.