In a Montessori classroom children engage in a constructive approach to education. Constructivism is when the learner constructs meaning through exploration and engagement with the environment around him. Constructive learning is a child centered process that promotes active learning, reflection, motivation, confidence, and interest. In a Montessori Environment self correcting materials are presented through demonstrations by the Directress, who Maria Montessori considered to be a guide, not an instructor. The goal is to introduce the child to a material, so that he may then explore it independently to construct his own learning. Materials are presented sequentially so that learning builds on itself and a student can be successful, developing confidence in one’s abilities and a desire to learn.