Finding the Better Buy / Better Deal ā one of the best demonstrations of the usefulness of ratios, rates, and unit rates in the real world. This product, which provides a warmup activity, guided notes, and a worksheet on the use of unit rates to determine which deal is the better buy, is a supplement to Ratios, Rates, and Proportions Galore! (a complete unit which introduces students to the basics of ratios, rates, and proportions). Purchasers of Ratios, Rates, and Proportions Galore! who wish