My interview day for pgce primary 5-11 went sort of something like this:
CRB form filling out (chance to talk to other interviewees, it will help calm you down!)
Maths test (10 questions, 10 minutes, fractions, percentages, shapes as well as addition subtraction multiplication etc..)
Introduction talk about the course
Group presentation - given a question to talk about and present
Written test - Write about the presentation you just did.
Group interview - interviewer raises questions about education/school/teachers role etc, it's just a general chat really.
Finish!
Good luck!