Devote Lesson VIII to a discussion of the methods of cleaning and to
various short tasks in connection with the school-room. In Lesson IX
have the pupils go through the entire process of cleaning a room. Assign
some portion of the task to each one of them, so that all may take part
in the work. Supervise the work carefully, assign home practice, and
have each pupil clean a room at home once a week for a month.