The Geometry materials cover shapes and spatial reasoning, including visualization and recognition of basic shapes, identifying the basic attributes of shapes, and beginning to categorize shapes by their attributes. Many adult education students who lack concrete experiences with geometry and spatial reasoning need to work on recognizing what basic shapes can “look” like; for example, that a rectangle can be skinny or fat, or that a triangle can have equal sides, or be long and skinny, or irregular, and can point in any direction.
English versions last updated in 2025. Spanish versions last updated 2023.
*The Shape Set is now included in the Teacher’s Guide in the 2025 English version.