What will show up on a crb check?

i have been offered a job as a lunchtime supervisor at a primary school. as usual i need a crb check done but what i am concerned about is a few years ago i was caught with theft in my old work place which i was only cautioned as i told the truth and owned up to it but also have a driving offence which i was fined. will these show up on my crb check and also would they affect my decision regarding my lunchtime supervisor job?