You'll need a good degree, like a first class or upper second class, relevant to the subject you want to teach. You'll also need to have completed or be working towards a postgraduate master's or PhD, and have academic work published.
You'll be expected to do a teaching qualification soon after you start. This is usually offered by your own university and is done while working.
You may be able to get experience by taking on teaching duties while you're a postgraduate student. Some universities also offer work as a graduate teaching assistant.
You'll need several years' relevant work experience if you want to teach vocational subjects, for example art or engineering.
You'll usually need:
- 2 to 3 A levels for a degree
- a degree in a relevant subject for postgraduate study