“偶数哥德巴赫猜想”实验学具,能够巧妙地把这一至今尚未最终解决的世界难题的概念直观地演示出来。实验学具的基本构成是“一个零件,两条直尺”,把每个大于6的偶数穷尽地拆成所有素数的和。实验中,对于每一个偶数的拆法,具有穷尽性,无一遗漏,为不争的事实。“一个零件,两条直 “Even Goldbach’s Conjecture” experimental device can skillfully demonstrate the concept of a world problem that has not yet been finally solved. The basic structure of experimental learning tools is “one part, two rulers”, and each even number of more than six is ​​broken down into the sum of all prime numbers. In the experiment, it is an indisputable fact that every even-numbered dismantling is exhaustive and has no omissions. "One part, two straight