The aim of the present research is to assess the developmental pattern of the metacognitive knowledge of attention in Italian primary school students. Data were collected from 95 pupils divided into two age groups: the first (6-8 years) and second primary school cycles (8-10 years). The children were asked to perform two specific thematic drawings on attention vs. inattention in the school context. The drawings were coded on the basis of the Children's Awareness of Attention through Drawing, consisting of five scales which explore the behavioural, pragmatic, cognitive, emotional and social awareness of attention. The analysis of the thematic drawings reveals that from the early years of primary school, children are aware of some components of attention: behavioural awareness, pragmatic awareness and social awareness. Other components are instead acquired as of the age of eight.