Assess students' ability to apply ratios and proportions to solve medium-difficulty, real-world problems: determine scale factors and compute lengths on scale drawings, scale recipes up or down (including fractional quantities and rounding as needed), compute and use unit rates, set up and solve proportions for missing values, convert units when required, and interpret answers with correct units and reasonable precision. Designed for grades 6–8; emphasizes applying proportional reasoning in multi-step contexts.