Activity
Curated OER

Carbon 14 Dating in Practice II

For Teachers 9th - 12th Standards
  Your archaeologists combine proportional reasoning with exponential functions in a real-life task centered on Carbon 14 dating.          
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...
Lesson Plan
Curated OER

Our Solar System - Comparing Planetary Travel Distances

For Teachers 7th - 8th
NASA presents a mini-unit on distances in our solar system. It incorporates scientific concepts of gravity, mass, density, and payload while your aspiring astronauts also employ mathematics skills. They calculate speed, they determine...
Worksheet
Yummy Math

Starbucks Drinks

For Students 6th - 8th Standards
The casual language and popular topic will make this assignment all the more engaging for your middle school math class. They use Starbucks beverage sales and nutrition values to practice ratios, proportions, statistics, and...
Lesson Plan
Illustrative Mathematics

Coffee by the Pound

For Teachers 7th - 9th Standards
This is a great exercise in graphing proportional quantities to interpret the unit rate as the slope of a graph. It is not easy for learners to understand what a unit rate is. When it is presented as the slope of a linear line graph,...
Lesson Plan
Illustrative Mathematics

DVD Profits, Variation 1

For Teachers 7th - 9th Standards
The idea in the resource is to understand the connections between proportional relationships, lines, and linear equations. To stay within the context of the standard, skip the part of the resource that solves with unit rates. Instead,...
Lesson Plan
Illustrative Mathematics

Find the Change

For Teachers 7th - 9th Standards
This exercise is an opportunity for algebra learners to understand the connection between the slope of a line and points found on the line. Use similar triangles to explain why slope m is the same between any two points. Discuss with the...
Lesson Plan
Illustrative Mathematics

Peaches and Plums

For Teachers 7th - 9th Standards
According to the resource graph, which costs more: peaches or plums? Algebra learners compare two proportional relationships and then throw in a banana. Leaving out the scale helps students become intuitive about graphing. 
Assessment
1
1
CCSS Math Activities

Smarter Balanced Sample Items: 8th Grade Math – Target C

For Teachers 8th Standards
Target C from the Smarter Balanced assessment for eighth grade is understanding the connections between proportional relationships, lines, and linear equations. A slide show includes items about graphing proportional relationships and...
Lesson Plan
Curated OER

Proportional Problems 1

For Teachers 8th
Eighth graders explore representing fractions as ratios and proportions. They model proportions through the use of blocks, LEGO gears and activities with bicycle gears and pedals. Students work with bicycle gear boxes to observe and...
Lesson Plan
Curated OER

Proportions

For Teachers 6th - 8th
Learners examine the mathematical concept of proportions in an attempt to apply them in various types of problems. The real application of proportions is often found in word problems which requires a them to also practice a systematic...
Worksheet
Curated OER

Ratio and Proportions

For Students 5th - 6th
In this ratio and proportion worksheet, students use pictures to understand that ratios are comparisons. Students solve 10 questions pertaining to ratios and proportions.
Worksheet
Curated OER

Ratio and Proportion 2

For Students 5th - 6th
In this ratio worksheet, students analyze the number of orders taken for different foods in a cafe. Students solve 8 ratio and proportion problems using the numbers in the data table. There are detailed examples on the page.
Lesson Plan
Curated OER

Savings Planning Using Tables, Line Graphs and Early Proportionality

For Teachers 4th - 7th
Students use proportional reasoning to make a chart of daily savings transactions and balances. In this accounting lesson, students read word problems and complete three handouts about a bidding and accounting problem. Students finish...
Lesson Plan
Curated OER

Proportion of the Human Form

For Teachers 3rd - 7th
Students discover proportions of the Human Body.  In this anatomy instructional activity, students create replicas of the Human body using nothing but paper and glue.  Students share their creations with the entire class.
Lesson Plan
Curated OER

Using Proportions to Estimate

For Teachers 8th - 10th
Students calculate ratio and proportion. In this unit rates lesson, students estimate using proportions and find their errors in doing so. They calculate unit rates and define the concept of unit rates.
Lesson Plan
Curated OER

Math and the Greek-Golden Proportions

For Teachers 4th
Fourth graders study math and the golden mean. In this math meets Greek history lesson, 4th graders study ratios and proportions in relation to the Greeks. The use of clay is incorporated ino this lesson. 
Worksheet
Curated OER

Ratio and Proportion 7.1

For Students 5th - 6th
In this calculating ratio and proportion worksheet, students write rations in their simplest form, write in the form 1:n for ratios, and solve word problems. Students solve 4 problems.
Worksheet
Curated OER

Ratio and Proportion 2

For Students 6th
In this evaluating knowledge of ratio and proportion worksheet, 6th graders complete the mental tests simplifying ratios, solving word problems, and converting foreign money. Students solve 24 problems.
Worksheet
Curated OER

Proportion Problems

For Students 5th - 6th
In this proportion worksheet, learners use work space provided and state whether rations are proportional. Answers are included on page 2.
Lesson Plan
Curated OER

Dragonfly

For Teachers 7th Standards
The speed of a dragonfly brings math into the real world as your learners collaboratively see the value in calculating unit rates in direct proportion problems. This six-phase lesson encourages you, as the teacher, to only ask questions...
Lesson Plan
EngageNY

Families of Parallel Lines and the Circumference of the Earth

For Students 9th - 10th Standards
How do you fit a tape measure around the Earth? No need if you know a little geometry! Pupils begin by extending their understanding of the Side Splitter Theorem to a transversal cut by parallel lines. Once they identify the...
Lesson Plan
EngageNY

Constant Rates Revisited

For Teachers 8th Standards
Find the faster rate. The resource tasks the class to compare proportional relationships represented in different ways. Pupils find the slope of the proportional relationships to determine the constant rates. They then analyze the...
Lesson Plan
Curated OER

Proportionality Using "Jack & the Beanstalk"

For Teachers 2nd - 4th
Learners apply ideas of proportionality from "Jack and the Beanstalk." They compare objects that are proportional to Jack with those that are in proportion to the Giant. They measure their hands and use those measurements to determine...

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