Math · Intermediate · Lesson 1 of 7
Voting Methods
Plurality, runoff, Borda
An interactive lesson with 6 steps, about 5 minutes: you predict, drag and solve, with instant feedback on every answer. It runs in your browser and needs JavaScript.
What you’ll learn
- Plurality counts only first choices. Runoff and Borda use full rankings.
- The same ballots can produce different winners under different methods.
- A plurality winner can be ranked last by a majority.
Steps
- One election, nine voters
- Plurality
- Borda count
- Make the methods disagree
- Borda points
- Approval voting