Learning goals: Teacher Facing Explain (orally and in writing) that if two ratios have the same rate per 1, they are equivalent ratios. Justify (orally and in writing) comparisons of speeds or prices. Recognize that calculating how much for 1 of the same unit is a useful strategy for comparing rates. Express these rates (in spoken and written language) using the word “per” and specifying the unit. Full lesson plan (warm-up, activities, synthesis, cool-down prompt) from 6.3 Unit Rates and Percentages, Grade 6.