Sphere From Four Folded Circles

Inspired by Buckminster Fuller's work on Great Circles and Bradford Hansen-Smith's Wholemovement Project, a sphere is formed by joining four folded circles. The circles are combined to form a sphere that contains what Fuller named the “vector equilibrium”.

This object allows the child to explore tactilely shape formation and to consider the relationship between two-dimensional circles and the three-dimensional sphere. Building the sphere fosters an intuitive understanding and appreciation of how circles and spheres are both built from radii emanating from a single point. 

Construction of the spheres using buttons and snaps allows for strengthening of the hand and finger muscles in preparation for more intricate tasks.