The pattern block shapes are employed by students to create colorful concentric designs. Once the designs are complete, the shapes are tallied by category (triangles, rhombi, hexagons, etc.) and are expressed in fractional, decimal and percentage form for the entire design. Each piece counts as a unit fraction of the whole. By totaling the information in fraction, decimal and percent form, students can discover that in all three number systems, the sum of the fractions is 1, the sum for the d