The lesson focuses on teaching students about adjectives (ġettivi) in Maltese, using classroom activities and descriptive exercises. The teacher provides examples of how adjectives describe nouns, such as “karozza żgħira” (small car) and “skola kbira” (big school), and encourages students to identify adjectives within a Maltese song by Sammy Bartolo. The students are also engaged in listening exercises to further explore and identify adjectives.