本产品把测量功能和分数概念结合，既可以作为日常测量角度的工具，又能作为验证工具，学生通过主动思考后，对比数值，自己发现等值分数、约分、加减关系，然后用尺子验证自己的结论，将分数的抽象概念具象化表达，帮助学生理解知识点。学生通过操作形成对分数抽象概念的直觉，结合卡牌游戏用于课堂游戏，提升学习的主动性。适用于小学三年级到六年级阶段，帮助孩子构建分数的核心概念。

This product combines the measurement function with the concept of score, which can be used as a tool for daily measurement of angles and as a verification tool. After active thinking, students compare the values, find the relationship between equivalent score, approximate score, addition and subtraction, and then use a ruler to verify their conclusions, concretize the abstract concept of score, and help students understand knowledge points. Students through the operation of the formation of the fraction of the abstract concept of intuition, combined with card games for classroom games, to enhance the initiative of learning. It is suitable for the third to sixth grade stages of primary school to help children construct the core concept of scores.

研发小小玩具设计师、3d打印、IP设计、斐波那契数列等创意营活动，致力于青少年设计教育发展。

Research and development of small toy designers, 3d printing, IP design, Fibonacci series and other creative camp activities, committed to the development of youth design education.

玩具设计专业毕业，现就职于中国宋庆龄青少年科技文化交流中心任教师、设计师一职，致力于青少年设计教育发展。

Graduated from toy design major, he is now working in China Soong Ching Ling Youth Science, Technology and Cultural Exchange Center as a teacher and designer, committed to the development of youth design education.