She then observes the child completing the activity without interrupting or making corrections.
The Montessori materials and activities are presented to the children individually and in small groups. The guide first demonstrates how to handle the materials and do the activity.  She then observes the child completing the activity without interrupting or making corrections.  If the child exhibits an understanding of the material, he is free to choose it for use.  Materials may be presented again if the educator feels that it may enhance the child’s development. Teachers may also introduce variations to the activity once a child has mastered the materials in the initial phase.