This will be my first year teaching first grade and I would like to know how you all go about managing your centers. I have a number of centers that I would like to implement inside of the classroom except I don't know how to execute them. How do you keep students from rushing through the centers? Are the students timed at each center? Do you hold each student accountable for each center? If so, do you have a worksheet in which they are to fill out? Thanks in advance for all of your responses!!