To speak of an effective educational programme leads at once, however, to an important aspect of the Montessori system, quite aside from its relation to the kindergarten, with which this Introduction must now deal. This is the social aspect, which finds its explanation in Dr. Montessori's own story of her first school. In any discussion of the availability of the Montessori system in English and American schools--particularly in American public schools and English "Board" schools--two general conditions under which Dr. Montessori did her early work in Rome should be borne in mind. She had her pupils almost all day long, practically controlling their lives in their waking hours; and her pupils came for the most part from families of the laboring class. We cannot expect to achieve the results Dr. Montessori has achieved if we have our pupils under our guidance only two or three hours in the morning, nor can we expect exactly similar results from children whose heredity and experience make them at once more sensitive, more active, and less amenable to suggestion than hers. If we are to make practical application of the Montessori scheme we must not neglect to consider the modifications of it which differing social conditions may render necessary.
The conditions under which Dr. Montessori started her original school in Rome do not, indeed, lack counterpart in large cities the world over. When one reads her eloquent "Inaugural Address" it is impossible not to wish that a "School within the Home" might stand as a centre of hopeful child life in the midst of every close-built city block. Better, of course, if there were no hive-like city tenements at all, and if every family could give to its own children on its own premises enough of "happy play in grassy places." Better if every mother and father were in certain ways an expert in child psychology and hygiene. But while so many unfortunate thousands still live in the hateful cliff-dwellings of our modern cities, we must welcome Dr. Montessori's large conception of the social function of her "Houses of Childhood" as a new gospel for the schools which serve the city poor. No matter what didactic apparatus such schools may use, they should learn of Dr. Montessori the need of longer hours, complete care of the children, closer co-operation with the home, and larger aims. In such schools, too, it is probable that the two fundamental features of Dr. Montessori's work--her principle of liberty and her scheme for sense training--will find their completest and most fruitful application.