This lesson focuses on puberty and its various aspects, aimed at Year 7 students according to the PSD curriculum. Students are assigned homework to imagine creating a leaflet about puberty, outlining its importance and encouraging their peers to understand it better. Puberty is described as the time when children biologically, socially, and cognitively mature, driven by hormones such as estrogen and testosterone. It is noted that girls usually begin puberty earlier than boys, highlighting the physical, psychological, and social changes that occur during this period.