Unit 12 · Weeks 32, 33, 34

CAD, Scale Drawing & Spatial Design

How can precise digital drafting turn geometric constraints into measurable, printable, and defensible designs?

Lesson sequence

7 visual, printable lessons

Configure OHMIC units, sheet size, grid, snap, scale, and project recovery before drawing.

Report measurement, absolute error, relative error, and appropriate significant figures.

Separate walls, dimensions, annotations, and symbols into purposeful layers and object groups.

Draft rooms and openings at scale and justify dimensions, accessibility, and circulation constraints.

Use live length and area analysis to estimate quantities and document assumptions.

Create modular or radial designs using repeated, rotated, reflected, or translated components.

Prepare technical outputs as Print/PDF, SVG, PNG, simplified DXF, JSON, and CSV while explaining the role of each format.

Connected laboratories

Draft, measure, dimension, layer, analyze, print, and export precise geometric designs.

Vocabulary, marked diagrams, guided constructions, and reduced-complexity practice.

Complete grade-level reasoning, calculation, proof, and printable evidence.

Generalization, proof revision, optimization, design, and transfer.