In order to carry out the present study a school place representative of the entire Italian school have been identified, an Institute within Rome province have been selected. The first step has been the measurement of the dimensional and structural features of the classrooms considered, their furniture and work-posts, also considering the activities carried on in the classrooms and their environmental conditions. Pictures and videos have been shot so as to have a deep analysis of the ergonomic level of the work-posts and, at the same time, an inquiry to understand the needs of the students with respect to the environment "classroom", the work-posts and didactical tools utilized, by means of a multiple answers questionnaire, drawing, and the implementation of the shared design method. Applying with the young users the creative sharing design method it have been produced the "diagnosis paper", where the problems and the criticalities relevant to the well-being and healthiness of the users of the school environment have been listed, and which allow to identify patterns, useful basis for future re-designs. The data obtained have been then the subject of an exact and deep analytical and statistical examination carried on by the multi-discipline.