An unannounced inspection at Cookham Wood Prison in Kent found a rise in an already high number of violent incidents.
During a recent lockdown search of Cookham Wood, thirty weapons were found. But inspectors praised the quality of new accommodation.
Martin Lomas, Deputy Chief Inspector of Prisons, said there was a 'significant level of violence' at the institution.
Nick Clegg said that as part of his proposals, young offenders would be forced to go back to the classroom to help them develop skills for when they return to the community.
Currently, young offenders spend on average just 12 hours a week in education. That would be more than doubled.
Additionally a pioneering Secure College will be built in the East Midlands.
The fortified school will provide young offenders with strong discipline, while focusing squarely on rehabilitation and education.
Nick Clegg, the Deputy Prime Minister, has been in Kent to unveil radical plans to tackle youth reoffending.
On a joint visit with the Justice Secretary, Chris Grayling, to Cookham Wood Young Offenders Institute in Rochester, he said that better education and training would help with rehabilitation.
Currently, almost three quarters of youth offenders return to crime when they are released.