This article is based on a socio-cultural discourse model of literacy, whereby literacy events are regarded as being situated within social practices, creating various formal, informal, and non-formal literacy events that are part of multiliteracies. The aim of the research was to analyze primary pupils' literacy practices (8-12 years) from the perspectives of 1,354 primary pupils, 1,020 family members, and 96 teachers in Costa Rica, using an ex-post facto design and a survey method. The findings indicate that the three groups of participants (pupils, family members, and teachers) have different views on and conceptualizations of literacy practices in school and in the community. The results show that young learners develop their literacy practices according to their different communicative needs inside and outside school. A multimodal literacy is promoted outside school to meet students' daily communicative needs. However, the school promotes a monomodal literacy, which allows pupils to respond essentially to school needs.