The guiding criteria that refer to the theoretical framework outlined above concern:

- Stimulating children to discuss different linguistic uses without prejudice;

- Discussing the pragmatic differences of the different languages of the children, presenting all the options as different and equally valid ways of conceiving of the world around us;

- Valuing the role of parents, who can be important sources of information about the social uses of language;

- Emphasizing the intrinsic cultural value of all languages: they are all (different or similar) ways of conceiving of oneself, others and the world.