The first phase of scribal education was aimed at teaching the basics of cuneiform signs and vocabulary to young scribes. It thus mostly comprises elementary sign-lists (syllabaries) and vocabularies (lists of proper names, gods, professions, trees, garments, etc.). The great majority of first-phase lexical lists in our corpus come from the āšipus' house(s) in Uruk, thus witnessing the importance of teaching in this place.
Marie-Françoise Besnier
Marie-Françoise Besnier, 'Lexical lists in the first phase of scribal education', The Geography of Knowledge, The GKAB Project, 2019 [http://oracc.museum.upenn.edu/cams/gkab/Scribalapprenticeship/Lexicallists/PhaseI/]