MSF teachers use inservice as a time to prepare the classroom environment for the children.
Montessori’s idea of the prepared environment was that everything the child came in contact with would facilitate and maximize independent learning and exploration. This calm, well-ordered environment has a lot of movement and activity. Children are free to choose and work on activities at their own pace. Here, they experience a combination of freedom and self-discipline, as guided by the environment.
In Maria Montessori's own words:
"The first aim of the prepared environment is, as far as it is possible, to render the growing child independent of the adult". Maria Montessori. The Secret of Childhood, 1966.