In 1999, Pierre Lévy stated that any reflection on the future of education should be based on a prior analysis of the alterations in the relationship between human beings and knowledge. Today, it is possible to observe that not only this link undergoes profound changes due to the technological advances, but there is also an intensification of the challenges for education. Current pedagogical discourses permeate ideas of changes in the school curriculum and in teacher training programs, along with the need for paradigms that engage with technological innovations. The emphasis of school practice on results, memorisation and marketing interests, to the detriment of the focus on knowledge and culture, is also questioned. However, by examining what is meant by knowledge or technology in the educational field, it is possible to notice a profusion of interpretations. This research aims to identify and analyse the perceptions of knowledge and technology that permeate the educational discourse and how these ideas relate to each other. For that, documents of the Public Policies in Education regarding the inclusion of the digital technologies in school are analysed through Critical Discourse Analysis. Specifically, the National Education Plan 2014-2024 and the Connected Education Innovation Program. Three categories are used to analyse the perceptions on knowledge: Cartesian, constructivist and systemic thinking. Along with them, there are two categories of analysis on technology: technical and sociocultural artefact. It is considered that, although there are indications towards systemic and sociocultural perspectives, the preponderant visions are more related to aspects of Cartesian thought and the perception of technology as a technical artefact.