Ratio and Proportional Relationships (chaper 7)

Ratios and proportional relationships are essential to mathematics and to all of science, and they are useful in daily life. They are a foundation for understanding the rate of change, slope, linear relationships, and other relationships in mathematics and science. In this chapter, we will motivate and define the concepts of ratio and proportional relationship. We will then see ways of reasoning to solve proportion problems with the aid of tables, graphs, double number lines, and strip diagrams. We will see how unit rates arise from r...