When dd was at preschool they could choose what they wanted to do most of the time. There was always a sandpit, water play, clay, painting, computer games, Lego, wooden blocks, jigsaw puzzles, dressing-up, Wendy house, a themed role-play area (changed every couple of weeks - vets, pet shop, cafe), quiet room with books, drawing, tracing.
They would then have something different set up every day that all the children would have a go at - a craft activity such as weaving, a sensory activity such as putting your hands into various different bowls of gooey stuff, baking cakes, singing. Plus they had a French teacher for one morning and one afternoon session a week, just for half an hour to learn French songs and some basic French words.
They would also do something "academic" every day - a little bit of writing, numbers, draw something and describe it, pencil control.
Plus they had circle time at the beginning of the session, where they would do something together - look at colours, talk about things they had done. There was a break for playtime morning and afternoon, and at the end of the day they had story time.
If you talk to the pre-school they will be able to tell you how they plan their day.