Mr Brown said that the reforms and cost blowouts under four education ministers had ranged from the Atelier Report, Essential Learnings and Tasmania Tomorrow with its separate Skills Institute, Tasmanian Academy and Tasmanian Polytechnic bodies.

However, Education Minister Nick McKim has said figures being quoted on the Tasmania Tomorrow reforms were ``absurd''.

On Tuesday Mr McKim announced a return to a TAFE model of post year-10 Vocational Education and Training with TasTAFE from July 1, 2013.

Mr Brown said millions of dollars have been wasted on start-ups and rebadging, multiple board and administration positions and the financial losses of each.

``There's been an abundant waste of money they do know about to implement education changes with no research or world's best practice to base it on,'' Mr Brown said.

``It's all been a bit of a political stunt.''

Mr Brown said the $200 million was made up of:

The Atelier Report's recommendations to address the needs of students with disabilities and the initial waste of the implementation of seven Learning Services areas, which have now been reduced to three.

Essential Learnings cost more than $20 million in one year and then ongoing costs.

Annual losses of between $10-$15 million of the Tasmania Tomorrow bodies.

Opposition education spokesman Michael Ferguson said that claims that as much as $200 million had been spent on ``education experiments'' demonstrated the government needed to take responsibility for the ``expensive and ego-driven'' mess. ``Tuesday's final nail in the coffin of the catastrophic Tasmania Tomorrow fiasco is simply the latest reason why the government can't be trusted to manage money or major policy reform,'' Mr Ferguson said.

Australian Education Union state president Terry Polglase said he wasn't sure about the $200 million figure but understood Tasmania Tomorrow cost the state up to $80 million.