Lesson 1: Isometric vs. Perspective
Duration of Days: 2
Lesson Objective
Students will differentiate between isometric and perspective drawings and set up an isometric axis
Why does an isometric drawing look "slightly off" compared to a photograph?
How do parallel lines behave differently in perspective vs. isometric?
Isometric Axis, Receding Lines, Vanishing Point, Parallelism.
CT CADD.04.01: Identify various types of pictorial drawings (Isometric, Oblique, Perspective).
Students compare a photo of a building (perspective) to an IKEA assembly manual (isometric). They will practice drawing the "Isometric Y" to establish height, width, and depth.
Purpose: To understand that isometrics maintain true scale along their axes, unlike perspective.
DOK Level: 2.
Provide "Starters" where the three primary axes are pre-printed. Use color-coded pencils for the X, Y, and Z directions.
A "Quick-Sketch" of a 2" cube on isometric grid paper with perfectly parallel receding lines.
Isometric grid paper