This system is a great way to keep track of center/workshop groupings and still keeps the flexibility of groups and activities changing. Ideal for intermediate grades and open to different styles of management. This polka dot themed system is great to laminate and use velcro to create fluid flexible groups. I couldn't find anything that quite fit what I was looking for with open ended centers but rotation management and matched my class polka dot decor. Easily adapted for reading, math or both. I personally have reading groups velcroed to the left and math to the right so that I can just use one management system for all of my centers and rotations.