Hi everyone! I just accepted a job offer yesterday to teach 3 year olds at a local preschool. They had a lot of enrollment for that age group this year and the director decided to open up a second class for the children that attend half-day. I am very excited! I am meeting with the existing teacher later this week to discuss the curriculum and to learn how she does things, but since I have my own room, I am allowed to do some things differently if I'd like. I am trying to think of the basics in how I want my room to run. One thing I would like to know is how you work centers in your classroom. What centers do you have and what is the structure for the children using them throughout the day and week? Do you assign children to a particular center for that day, or do you give the freedom to choose? I worry about if I let them choose, they will always go to the same center. Also, how often do you switch up centers to keep things interesting for the children? For instance, changing what materials are in the sensory table.