Pupils at Pelton Primary School in County Durham applied and were interviewed for the different roles within the 'Enterprise City'.
They are spending the day running their town and creating a vibrant economy.
Terry Coatham, the year six teacher at Pelton Primary School, believes the project is an important way for the pupils to learn about what careers they might want to go into in the future.
More top news
It looks like, for a change, the best of the weekend weather (and the week ahead) is coming through on Bank Holiday Monday itself
Kerrie brings you Saturday night's forecast
Cloudier later with some rain by evening. Slow improvement on Sunday. Drier, brighter and warmer on Monday