Dare to compare! In this BrainPOP movie, Tim and Moby introduce you to one particularly useful means of comparison: ratios. You’ll learn exactly what a ratio is and how division is used in writing one. You’ll find out the difference between a part and a whole, as well as how to know when a ratio is involved in a math problem or in real life! You’ll also discover the three ways to write ratios. Nothing compares to this excellent movie!
In this lesson plan which is adaptable for grades 2-5, students use BrainPOP resources (including an online game) to explore equal parts, equal splitting, fractions, equivalent fractions, and other math concepts. This lesson plan is aligned to Common Core State Standards. See more »
In this lesson plan which is adaptable for grades 3-8, students explore ratios and proportions using an online math game called Ratio Rumble. Students will identify ratios when used in a variety of contextual situations and explain why ratios and rates naturally relate to fractions and decimals. This lesson plan is aligned to Common Core State Standards. See more »
In this lesson plan which is adaptable for grades 4-8, students use BrainPOP resources to define and give examples of a ratio, proportion, and percent. Students then solve word problems and equations to find ratios, proportions and percents. See more »
In this lesson plan which is adaptable for grades 3-12, students work collaboratively to research selected math skills. Students then create, play, and assess a math game that is designed to apply and reinforce their selected math concept. This lesson plan is aligned to Common Core State Standards. See more »
Recent Ratios Quizzes
Note: Mixer quizzes are only available to school-wide BrainPOP subscribers.
Use the four operations to solve word problems involving distances, intervals of time, liquid volumes, masses of objects, and money, including problems involving simple fractions or decimals, and problems that require expressing measurements given in a larger unit in terms of a smaller unit. Represent measurement quantities using diagrams such as number line diagrams that feature a measurement scale.
Understand the concept of a ratio and use ratio language to describe a ratio relationship between two quantities. For example, “The ratio of wings to beaks in the bird house at the zoo was 2:1, because for every 2 wings there was 1 beak.” “For every vote candidate A received, candidate C received nearly three votes.”
Understand the concept of a unit rate a/b associated with a ratio a:b with b ≠ 0, and use rate language in the context of a ratio relationship. For example, “This recipe has a ratio of 3 cups of flour to 4 cups of sugar, so there is 3/4 cup of flour for each cup of sugar.” “We paid $75 for 15 hamburgers, which is a rate of $5 per hamburger.”1
Use ratio and rate reasoning to solve real-world and mathematical problems, e.g., by reasoning about tables of equivalent ratios, tape diagrams, double number line diagrams, or equations.
Compute unit rates associated with ratios of fractions, including ratios of lengths, areas and other quantities measured in like or different units. For example, if a person walks 1/2 mile in each 1/4 hour, compute the unit rate as the complex fraction 1/2/1/4 miles per hour, equivalently 2 miles per hour.
Recognize and represent proportional relationships between quantities.
Decide whether two quantities are in a proportional relationship, e.g., by testing for equivalent ratios in a table or graphing on a coordinate plane and observing whether the graph is a straight line through the origin.