This smart lesson uses simple recipes to apply equivalent ratio reasoning to a real world situation. The lesson includes a warm up review of writing ratios using the three notations, then uses Rice Krispies Treats recipes to identify ratios and create equivalent ratios for different situations such as doubling the recipe or dividing it in half. Students will be using tables to demonstrate their understanding of equivalent ratios as stated in 6th grade Common Core standard 6.RP.3. Students can follow along and take notes using the attached word document in the attachment tab. Lesson also includes a related homework assignment that can be printed from the smart lesson, and 2 challenge/extension slides.