I was under the impression that you did a bachelors degree (BA/BSc), then a masters was something you did after that for 2 years or so. I did know about the MMath (which is a 4 year masters-as-a-first-degree) but thought that was a one of.
DD1 now tells me that loads of subjects now offer a 4 year masters-as-first-degree, and that's now the norm for bright students. Is that right, or just in her (maths/science) circle? I'm sure I've read on here about people going on to do masters as a postgrad.