New Mexico State University
Bad Date
Get the best ratio for a good date. The class watches a video where dates are rated based on the ratio of words spoken. Pupils then use the ratios in the video along with other given ratios to find equivalent ratios. Finally, they...
Curated OER
All About Ratios
Students investigate the use of multiplication and division of whole numbers to solve problems including equivalent ratios and rates.
Curated OER
Currency
Students investigate currency and exchange rates. In the middle school mathematics lesson, students use ratio and proportion to convert from one type of currency to another. Students solve problems involving currency exchange.
Curated OER
A Blast From The Past
Students investigate ratio and proportion as they solve problems. In this algebra lesson plan, students calculate the percent increase on salaries and convert between decimals and percents to calculate. They rate job positions from 1936...
Utah Education Network (UEN)
Linear Graphs Using Proportions and Rates
Using a TI-73 or other similar graphing calculator middle school math majors investigate the linear relationship of equivalent proportions. After a brief introduction by the teacher, class members participate in a timed pair share...
Curated OER
Proportion Problems
Seventh graders explore the concept of proportions. For this proportions lesson, 7th graders determine which offer is the better deal given two pizza offers. Students use cross products to solve proportions. Students write directions...
California Education Partners
Photos
Why do all sizes of pictures not show the same thing? Class members analyze aspect ratios of various sizes of photos. They determine which sizes have equivalent ratios and figure out why some pictures need to be cropped to fit particular...
Balanced Assessment
At the Supermarket
Grocery managers and chefs sure use lots of math. Scholars first use ratios and unit rates to determine a price for a can of corn. Once individuals have the pricing, they determine the amount of ingredients necessary to make brownies...
101 Questions
Thanksgiving Taters
What would a meal be without the taters? The question is, how long does it take to peel those potatoes? Given the rate of peeling one potato, scholars predict the time it takes to peel the bag. The twist is that the first potato was...
Curated OER
Ratio, Proportion And Percent Worksheet
In this math worksheet, students examine the answers to a formal assessment focusing on the concepts of ratio, proportion, and percent.
Curated OER
Ratio, Proportion And Percent
In this math worksheet, students evaluate and compare the ratios. They also compare the fractions by solving the proportions.
Helping with Math
Ratio and Proportion: Rates
Unit rates are introduced to your math minors on this printable worksheet, complete with answers. There are only three problems: the first involves biking speeds, the second the cost of bracelets, and the third the cost of apples....
Curated OER
Solving Problems Using Equivalent Ratios
In this equivalent ratios worksheet, students solve word problems when given an equivalent ratio of the answer. Students complete 7 problems.
Illustrative Mathematics
Buying Gas
A quick problem to test your middle schoolers' knowledge of dividing with decimals. Also a good practice of unit rates, they must compute the cost of one gallon of gas when given the total amount for a fill up. Can be used as a preface...
Lane Community College
Review Sheets: Basic Mathematics 2
A good mix of Pre-Algebra problems, learners tackle everything from proportions and equations, to polygons and circles. The sections are broken up by topic with a list of the skills that are required to complete the questions.
Curated OER
Is Bigger Always Better?
Explore rational numbers with the young mathematicians in your class. They will investigate decimals, fractions, and percents before ordering and comparing rational numbers. This multi-day unit includes differentiation activities and...
Curated OER
Rates and Proportions
Young scholars read a cookie recipe and complete a worksheet that asks them to establish ratios and proportions for various ingredients in the recipe.
Curated OER
Ratios, Proportions, and Cross-multiplication
Middle schoolers use cross-multiplication to find the unknown respiration rate of an astronaut. In this multiplication lesson plan, students also use the same process to find missing values in proportions.
Curated OER
Currency Exchange
Learners investigate the currency exchange rate. In this middle school mathematics lesson plan, student use proportions to exchange between the U.S. dollar and the euro. Students come up with a product they would like to buy and...
Curated OER
Comparing Ratios
In this comparing ratios activity, students solve and complete 3 different problems using the screens shown. First, they write a ratio that compares the shaded part to unshaded part illustrated. Then, students use the same grid to...
Noyce Foundation
Cereal
Find the best protein-packed cereal. The short assessment task covers equivalent and comparing ratios within a context. Pupils determine the cereal with the highest ratio of protein. A rubric helps teachers with point allotments for...
Noyce Foundation
Photographs
Scaling needs to be picture perfect. Pupils use proportional reasoning to find the missing dimension of a photo. Class members determine the sizes of paper needed for two configurations of pictures in the short assessment task.
101 Questions
Shower v. Bath
Which requires more water--a bath or a shower? Given some specific criteria, learners attempt to answer the question. A video shows how long it takes to fill a gallon container using a faucet and a shower head. Using that information and...
101 Questions
Pedestrian Countdown
You won't find yourself racing the clock on such a great task. Scholars use video information to predict the time left on a crosswalk signal after a pedestrian crosses. The video shows the time left on the counter, and individuals must...