Hi, I am trying to decide, before school starts in a couple of days, how I would like my students to switch centers. I will be meeting with small reading groups while my students are at centers and I will then pull them from their centers - I am not a center. I am thinking of making a work board and having a list of about 3 centers for each student to visit, but I am not sure if I want to use a timer and time 20 minutes for each center or if I should try to train them to be aware of what 20 minutes feels like and be responsible for switching their own centers. I have only used the timer method which I don't like because some kids may finish early and then interrupt other students and the timer interrupts my reading group who may run 2 minutes over the 20 minutes - however, once they hear the buzz, it destroys the wrap up of the reading group. My friend I taught with last year started the year timing and then stopped so the kids had to switch on their own. I am just thinking that perhaps a student will fly through each center and then be "done" or that a student will get "lost" in their activity and not be aware of the time. Sorry for the rambling and I hope I am making sense, but any advice on students switching centers would be most appreciative! Thanks!