Explore geometric properties such as shape, size, congruence, similarities, and symmetry with Tangrams. The seven-piece puzzles come in red, blue, green, yellow, or orange and once assembled, the square, parallelogram, and five triangles make a 10cm square. The sturdy plastic pieces can be used to make thousands of geometric designs and are a great source for stimulating and challenging problem-solving explorations. Includes five sets of tangrams (one each of five colors) and an activity sheet.