Sally Knox's son Rob died in 2008, when he was stabbed to death in a fight outside the Metro Bar in Sidcup, south-east London.
Speaking to Daybreak about the Government's plans to reward inmates on merit she said prisoners should be "should be spending more time in their cell thinking about what they did, and the other thing is there needs to be more education and training."
She added: "What are we achieving by giving prisoners satellite TV to behave?"
More top news
With heavy rain continuing across much of western Scotland the Met Office has issued an "amber" warning from 6pm today until 6am on Sunday.
As Liberia celebrates its 'last Ebola patient' Sierra Leone sees its hopes of being free of the disease dashed.
Ben Moynihan attacked three women in random stabbings when he was 17 because he could not lose his virginity.