Explore unit rate and constant of proportionality video lessons by finding the amount per one unit and identifying the constant multiplier that connects proportional relationships. Learn to calculate unit rates from tables, ratios, graphs, equations, and word problems, determine the constant of proportionality in situations represented by (y=kx), and interpret what (k) means in real-world contexts. Compare prices, speeds, costs, and rates, recognize proportional relationships, and use unit rates and constants of proportionality to solve problems using clear, step-by-step reasoning.