If you don't have the wall space for all the stuff you want for "Calendar Time", this idea could work. You can find these tri-fold boards at Walmart. It can be easily tucked away to be pulled out at the beginning of each school day.
Great classroom organization tip! Put bulletin board numbers or words on large rings--everything flips. No more boxes/files to store extra numbers or words. Make a few blank cards on the rings too, so you can change things up when necessary.
10 Preschool Transitions- Songs and Chants to Help Your Day Run Smoothly