How does he achieve this independence? He does it by means of a continuous activity. How does he become free? By means of constant effort. we know that development results from activity. The environment must be rich in motives which lend interest to activity and invite the child to conduct his own experiences.
Maria MontessoriPraise, help, or even a look, may be enough to interrupt him, or destroy the activity. It seems a strange thing to say, but this can happen even if the child merely becomes aware of being watched. After all, we too sometimes feel unable to go on working if someone comes to see what we are doing. The great principle which brings success to the teacher is this: as soon as concentration has begun, act as if the child does not exist. Naturally, one can see what he is doing with a quick glance, but without his being aware of it.
Maria Montessori