Media-rich module examines a terracotta figurine that embodies many characteristics of classical Greek sculpture. Expert commentary accompanied by animated overlays demonstrate details of the composition that give it harmony, balance,...

An interesting interactive slide show about perspective, including the horizon line and vanishing points.

This resource explores the diagonals of quadrilaterals. The interactive tool allows learners to examine intersecting line segments in a variety of ways. Topics discussed are perpendicular diagonals, congruent diagonals, and bisected...

In these problems, students are asked to find: point of intersection of two lines; coefficients that make two lines parallel; intersection of diagonals of a quadrilateral; and the point of intersection of three planes.