Learning Goals
Students will be able to construct and justify formal geometric constructions using perpendicular bisectors, angle bisectors, parallel lines, and copied segments and angles.
Students will be able to inscribe an equilateral triangle, square, and regular hexagon in a circle using compass-and-straightedge methods.
Students will be able to analyze and compare at least three geometric design solutions using measurable criteria and constraints.
Students will be able to evaluate and revise a geometric construction based on accuracy, balance, and alignment evidence from peer and teacher feedback.
Students will be able to communicate the reasoning behind a final circle-based geometric design using precise mathematical vocabulary and labeled construction steps.
Products
Annotated Compass-and-Straightedge Construction Portfolio
Each student submits a portfolio of practice constructions, three distinct design concepts, a weighted decision matrix, and written justification for the selected plan. The portfolio shows individual mastery of the construction rules and the reasoning used to choose and refine a solution.
Polished Circular Geometric Design Board with Inscribed Polygons
Teams create a finished rose-window, tile, or medallion design that accurately inscribes an equilateral triangle, square, and regular hexagon in one cohesive circle-based composition. The board includes labeled construction steps, revision evidence, and a short designer statement explaining performance, trade-offs, and limitations.
No rubric has been generated yet.