This unique math toy by Marcia Cooke, a math teacher from New Orleans, functions as a puzzle and a tool for visualizing powers of two. The 10-inch square area is cut into colorful wood pieces … one-half, 1/4th, 1/8th, 1/16th, up to one one 128th. These fractions describe the portion of the whole represented by each region. The Powers of Two Puzzle puzzle offers opportunities to explore several important mathematical ideas, including fraction equivalents, fraction multiplication with a common factor of ½, proportional reasoning, area, powers of two, and more. A child does not need to articulate these ideas to benefit from interaction with this puzzle, as current research suggests that exploration of concrete representations can accelerate and deepen understanding of abstract ideas. WARNING: SMALL PARTS. May pose a choking hazard for children under 3 years. Made in Vietnam for children ages 3+.