The battle is on in this game where you build your own potions! Create ratios to win this mixture mix-off! Ratio Rumble supports mathematical learning about equivalent ratios, and is relevant to Common Core topics such as: •Identifying ratios when used in a variety contextual situations •Providing visual representations of ratios •Solving common problems or communicating by using rate •Explaining why ratios and rates naturally relate to fractions and decimals. This app was developed as part of the Math Snacks initiative. Additional games, animations, and teacher support materials are available at http://mathsnacks.org. Developed by mathematics educators, researchers and game developers at the Learning Games Lab at New Mexico State University. Games developed by the Learning Games Lab undergo a rigorous instructional design process, extensive user testing, and input from learners, teachers, and researchers. For more information about the NMSU Learning Games Lab, visit http://learninggameslab.org. Math Snack materials were developed with support from the National Science Foundation (0918794). Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. Some materials were originally prototyped or discussed as part of a cooperative agreement from the U.S. Department of Education (U295A050004).