A learner is believed to attain the Montessori teachings with the three main factors that are present.  The Montessori Prepared Environment, Trained Teacher, and Child.  Learning transpires through these factors. 

A Montessori Prepared Environment provides opportunities for the child to choose and work on the Montessori materials from all learning areas; Language, Math, Sensorial, Exercises of Practical Life and Cultural Studies.  The children have freedom to choose and work at their own pace.
The Montessori Trained Teacher is equipped to be models and guide in conducting Montessori didactics to the child.  As a trained teacher, precision of presenting materials is expected for the child to achieve learning. 
“The greatest sign of success for a teacher... is to be able to say, the children are now working as if I did not exist”- Dr. Maria Montessori

The normalized Child is a significant factor in the Montessori environment.  A trained teacher achieves its role once a child manages to work in class without being guided.