Ministers' plans to open free schools and extend the academies programme are unlikely to boost pupils' achievement, a survey of teachers suggests.
A poll of almost 2,000 teachers reveals that more than eight in 10 of those working in the state sector believe schools should be run by councils.
Just one in six (16.2%) state teachers think that parents should be allowed to run state-funded schools, while 11.5% think private companies should be allowed to take charge.
The survey, by the Association of Teachers and Lecturers (ATL), found that more than a third (34.4%) of state teachers think the Government's academy programme will have "no impact" on attainment at their school, with a further 45.9% saying it is "unlikely" to make a difference.
In addition, more than three in 10 (31.8%) said that the free schools initiative will have "no impact" on achievement, with a further 44.1% saying attainment is "unlikely" to rise.
Free schools - a key plank of the Tories' education reforms - are not-for-profit schools set up by parents, teachers and other groups, using public funding.
So far, more than 700 groups have expressed an interest, but only 16 have got to the stage of putting a full plan together.
Academies were originally set up under Tony Blair's Labour Government, and the coalition Government announced plans to extend the scheme shortly after the election.
Education Secretary Michael Gove wrote to every primary, secondary and special school in England inviting them to apply for academy freedoms.
In total, as of last month, 142 had been given the go-ahead to convert.