Classrooms particularly those with young children need to have routines. These routines help you maintain order and also help the kids stay calm. If there is a set activity for every part of the day, you will be able to focus more on your teaching and less on giving instructions and generally controlling the class. This is just one of many reasons routines are important for teachers.
Using routines doesn't completely eliminate guesswork and the capacity for you to improvise. It does, however, allow you to focus more energy into the times you do need to guess and improvise, which makes your teaching more effective.
routines can be fun, too.
-routines in the classroom not only that you get through the things that need to be done each day, research has shown that the use of specific routines for classroom activities can increase time on task.