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Assessment
Mathematics Assessment Project

Ratios and Proportional Relationships

For Teachers 7th Standards
Time to see what they've learned. Seventh graders solve a set of seven short problems in the ratios and proportional relationships domain. Applications include photo negatives, washing machines, coffee powder, sleep, stamps, etc.
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Lesson Plan
Curated OER

Art Class, Variation 1

For Teachers 6th - 8th Standards
Student statisticians calculate ratios to determine how many shades of green were mixed by Ms. Baca's art class. They graph the number of blue parts against the number of yellow parts for each combination and discover that some produce...
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Lesson Plan
Mathematics Assessment Project

Classifying Proportion and Non-Proportion Situations

For Teachers 7th Standards
Proportions, proportions, everywhere. Class members complete an assessment task solving problems involving proportionality. They then complete an activity classifying given situations as proportional or non-proportional.
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Activity
1
1
PBS

The Lowdown — Exploring Changing Obesity Rates through Ratios and Graphs

For Teachers 6th - 9th Standards
Math and medicine go hand-in-hand. After viewing several infographics on historical adult obesity rates, pupils consider how they have changed over time. They then use percentages to create a new graph and write a list of questions the...
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Activity3:39
PBS

Scale City — Proportional Relationships in the Real World

For Teachers 6th - 7th Standards
Strive to determine your stride. Scholars first view an informative video on the Kentucky Horse Park and the 28-feet stride of the Man o' War. They then work together in groups to find the length of their own strides by using the number...
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Worksheet
Mathed Up!

Ratio

For Students 4th - 7th Standards
Practice makes proficient! Here, scholars practice their ratio skills to convert measurements while cooking. Nine problems make up a nine-page document equipped with clear instructions and advice for successful completion while working...
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Interactive
Curated OER

Ten Multiple-Choice Rate, Ratio, and Proportion Problems

For Students 7th
In this rate, ratio, and proportion worksheet, 7th graders solve ten multiple-choice problems.  The solutions are provided by clicking on the "show answers" on the bottom of the page.
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Worksheet
Helping with Math

Ratio and Proportion: Simplifying Ratios (1 of 2)

For Students 5th - 10th Standards
Here is a set of 24 pairs of numbers for which kids reduce the ratios to their simplest form. It is a simple and straightforward assignment, meant by the publisher to address CCSS.Math.Content.6.RP.3. Note, however, that it only requires...
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Worksheet
Curated OER

Solving for Missing Proportions

For Students 5th - 10th
In this missing proportions worksheet, students solve for the variables that appear in the proportions with one, two, and three digit numbers. Students complete 10 problems total.
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Worksheet
Kuta Software

Proportions

For Students 6th - 9th
In this pre-algebra worksheet, students check 6 pairs of ratios to determine if they are equivalent. In the final 16 problems, students solve for the missing value in the equivalent proportions.
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Interactive
Curated OER

Basic Proportions Worksheet

For Students 6th - 8th
In this middle school mathematics worksheet, students use cross multiplication to solve proportions. The interactive worksheet has a "step-by-step" link for an in-depth solution. The one page worksheet has twenty problems.
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Lesson Plan
Curated OER

Ratios, Rates, Percent and Nutrition

For Teachers 6th - 8th
Examine food labels to determine percentage of fat and sugar to total calories with middle schoolers. Daily nutritional guidelines are discussed and learners will decide how well their foods fit into a healthy diet. In the provided...
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Lesson Plan
Curated OER

Stock Swaps, Variation 3

For Teachers 6th - 8th Standards
More on the fictitious takeover of the Apple Corporation by Microsoft. For this scenario, Microsoft has $28.00 per share to spare, so how many do they need to offer to make an even trade? This is an engaging problem to solve when...
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Worksheet
Yummy Math

Glowing Rectangles?

For Students 6th - 8th Standards
Middle school math masters use ratios to determine the missing dimensions of various HD television screens. They also compare different dimensions of screens and determine whether or not they fit the same ratio. They perform similar...
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Lesson Plan
Curated OER

How Big Is That Star?

For Teachers 6th - 9th
Aspiring astronomers study stars. They compare stars and explain the relationship between radius, mass, and diameter. By creating a star simulation, they discover how a binary star system's orbit can cause changes in the observed...
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Assessment
Mathematics Assessment Project

100 People

For Teachers 6th - 8th Standards
It's a small world after all. In the middle school assessment task, learners use data that imagines there are only 100 people in the world to answer questions about population demographics. Young mathematicians use ratio and proportional...
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Activity
101 Questions

Leaky Faucet

For Teachers 6th - 8th Standards
A dripping faucet may be enough to drive you crazy, but it also teaches you a little about ratios. Presented with the volume of a sink and the rate the water is dripping, scholars must devise a plant to determine how long it will take...
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Activity
101 Questions

Gas Light

For Teachers 6th - 8th Standards
You don't want to leave any learners stranded! Explore ratios using an analysis of gas mileage and distance. Given a scenario, individuals must determine if a car has enough gas to make it to the next gas stop.
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Activity
101 Questions

Finals Week

For Students 6th - 8th Standards
What energy drinks have the highest concentration of caffeine? Pupils compare five energy drinks with different amounts of caffeine and different volumes. They must solve the ratios to understand the differences. An extension compares...
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Lesson Plan
Curated OER

Proportionality: Modeling the Future

For Teachers 4th - 8th
Students explore and examine how patterns, measurement, ratios and proportions are utilized in the research development and production of airplanes. They meet a pilot from the Federal Aviation Association who describes the growth of air...
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Lesson Plan
Curated OER

Relative Ratios

For Teachers 6th - 8th
Students discover that proportions are made up of equal ratios each containing the same building blocks. They, using the Internet, apply their knowledge of direct relationships and proportions to problems in planetary science.
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Worksheet
Curated OER

Working with Percentages and Proportions

For Students 6th - 8th
In this percentages and proportions activity, learners are given percentages, they express them as a proportions, they create an equivalent ratio using "x" for the unknown portion and they cross multiply and divide to find their answer.
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Lesson Plan
Curated OER

Quilting with Middle School Students: Using Proportionality to Develop Quilt Designs

For Teachers 7th - 9th
Students use quilt patterns to illustrate ratios. In this fractions activity, students color quilt patterns using given fractions and ratios of colors. A finished "quilt" is assembled from the work of the students. This is an...
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Worksheet
Curated OER

Proportional Reasoning

For Students 7th - 10th
In this proportional reasoning worksheet, students use proportions to solve discount and sale problems. This two-page worksheet contains 4 multi-step problems.

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