Voting for Three, Variation 1

This is an opportunity for young mathematicians to apply reasoning to solve real-world problems with ratios. Even though there are three candidates for class president, students will only consider two at a time, making the first problem straightforward. In the second and third problems, they need to read carefully and make connections between the new ratio and the larger pool of voters given. By the end of the lesson, pupils will be able to use a ratio to express the relationship between two quantities.