Milton Keynes Teaching School Alliance is the first SCITT in the country to be able to offer a new, unique initiative:

Alternatively, if you already have some formal post-school qualifications (eg. HNDs or other similiar), that you can gain accreditation for prior learning and "top-up" to a degree with further modules of study through an organisation like the Open University, without necessarily having to do a three year degree from scratch.

This very much depends on individual circumstances and existing qualifications. You would need to get in touch with the Open University to discuss this further.