Kumon Publishing 3D Tangram Educational Toy for Exams, Math, 3D Puzzle, Ages 5 and Up, ST Certification, RT-10, Kumon Toy

This puzzle involves combining pieces using a three-dimensional diagram as a clue. It develops spatial awareness and the ability to read and think about diagrams. Using the silhouette seen from above and the diagrams seen from the front, back, left and right as clues, you combine the pieces to create a three-dimensional object. It develops advanced thinking skills, such as combining multiple pieces of information given by the diagram. Recommended age: 5 years and up / Set contents: 10 pieces (9 types), 1 base sheet, 1 workbook ST acquisition