Product Introduction The fractional pieces is composed of 12 rectangular pieces with the same length. The 12 rectangular pieces have different colors, representing 1, 1/2, 1/3, 1/4, 1/5, 1/6, 1/7, 1/8, 1/9, 1/10, 1/12, 1/16 respectively. Each piece has corresponding score values, which can be taken down and pasted on the blackboard independently.