APH Product Details

A Venn diagram or set diagram shows all possible logical relations between a finite collection of sets.

This kit includes 15 sheets with two-circle diagrams and 15 sheets with three-circle diagrams, sized to allow for braille labeling in all sections and in the outer margins. The outlines of the circles are made in contrasting lines styles so they are easily distinguishable, both visually and tactually. These heavy, consumable sheets may be tooled directly or used in a braillewriter. Includes 30 sheets total measuring 11.5 x 11 inches.