Activity 01
Inquiry Circle: Proportion Mapping
In pairs, students use a pencil held at arm's length to measure the proportional relationships between facial features on a printed photograph: eyes to chin, nose to chin, ear placement relative to brow. They record their measurements as ratios, then compare results with another pair to see how closely different observers agree.
Explain the anatomical proportions that contribute to a realistic portrait.
Facilitation TipDuring Proportion Mapping, insist students use a straightedge only for measuring lines, not for drawing final edges, to prevent students from hardening the lines too early.
What to look forPresent students with a photograph of a face. Ask them to lightly sketch the primary proportional lines (eye line, nose line, mouth line) and label the midpoint of the head. This checks their understanding of basic guidelines.