Visual Arts in U.S. Geometry Textbooks Aligned with the Common Core Standards

This study investigates visual arts references in five U.S. high school geometry textbooks aligned with the Common Core State Standards for Mathematics. In all of the textbooks, architecture is the most commonly used context. More than half of the visual arts references are in the exercises. Congruence is the domain most often used, followed by Similarity, Right Triangles & Trigonometry. The visual arts references support the four traditional arguments justifying the geometry course but mostly support the goal of teaching geometry in ways that allow students to draw upon their intuition.