The Mathematics of Voting Systems: Plurality, Runoff and Ranked Choice

In this five-day interdisciplinary math and social studies unit, students use math to create informed opinions about the three most common voting systems in the United States: plurality, runoff and ranked choice. The unit ends with a student proposal for how student council elections should be conducted, illustrating how students can use mathematics as a tool to both understand and change their world.本五日跨学科数学与社会研究单元中，学生们运用数学知识，对美国三种最常见的投票系统——多数制、 runoff 及排序选择制——形成具有洞察力的观点。单元课程以学生对于学生会选举应如何进行的提案告终，展示了学生如何将数学作为一种工具，既理解又改变他们所处的世界。