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Illustrative Math-Media4Math Alignment

 

 

Illustrative Math Alignment: Grade 6 Unit 3

Unit Rates and Percentages

Lesson 6: Interpreting Rates

Use the following Media4Math resources with this Illustrative Math lesson.

Thumbnail Image Title Body Curriculum Nodes
Math Example--Ratios and Rates--Example 29 Math Example--Ratios and Rates--Example 29 Math Example--Ratios and Rates--Example 29

Topic

Ratios and Rates

Description

This example explores time unit conversion in an IT context, specifically converting seconds to minutes for user session duration. The image shows a computer tower, providing a real-world scenario for the mathematical problem.

Understanding time unit conversions is crucial in many technological fields, especially in IT and user experience analysis. This example demonstrates how to use a conversion factor to change units, illustrating the practical application of division in time-related measurement scenarios. It also introduces the concept of mixed numbers in the result.

Ratios and Rates
Math Example--Ratios and Rates--Example 3 Math Example--Ratios and Rates--Example 3 Math Example--Ratios and Rates--Example 3

Topic

Ratios and Rates

Description

This example focuses on ratios using black and green socks. The image displays a collection of socks, and students are tasked with determining the ratio of black socks to green socks. The solution shows that there are 2 pairs of black socks and 6 pairs of green socks, resulting in a ratio of 2 : 6, which simplifies to 1 : 3.

Ratios and Rates
Math Example--Ratios and Rates--Example 30 Math Example--Ratios and Rates--Example 30 Math Example--Ratios and Rates--Example 30

Topic

Ratios and Rates

Description

This example focuses on time unit conversion in an IT context, specifically converting seconds to hours for user session duration. The image shows a computer tower, providing a real-world scenario for the mathematical problem.

Ratios and Rates
Math Example--Ratios and Rates--Example 31 Math Example--Ratios and Rates--Example 31 Math Example--Ratios and Rates--Example 31

Topic

Ratios and Rates

Description

This example focuses on temperature unit conversion, specifically converting Celsius to Fahrenheit for the boiling point of water. The image shows a beaker of boiling water, providing a visual context for the mathematical problem.

Understanding temperature unit conversions is crucial in many scientific fields, including chemistry, physics, and meteorology. This example demonstrates how to use a conversion formula to change units, illustrating the practical application of mathematical equations in real-world temperature scenarios.

Ratios and Rates
Math Example--Ratios and Rates--Example 32 Math Example--Ratios and Rates--Example 32 Math Example--Ratios and Rates--Example 32

Topic

Ratios and Rates

Description

This example explores temperature unit conversion, specifically converting Fahrenheit to Celsius for the freezing point of water. The image shows icicles, providing a visual representation of the freezing temperature for the mathematical problem.

Ratios and Rates
Math Example--Ratios and Rates--Example 4 Math Example--Ratios and Rates--Example 4 Math Example--Ratios and Rates--Example 4

Topic

Ratios and Rates

Description

This example explores ratios using purple and red socks. The image shows a collection of socks, and students are asked to determine the ratio of purple socks to red socks. The solution reveals that there is 1 pair of purple socks and 4 pairs of red socks, resulting in a ratio of 1 : 4, which is already in its simplest form.

Ratios and Rates
Math Example--Ratios and Rates--Example 5 Math Example--Ratios and Rates--Example 5 Math Example--Ratios and Rates--Example 5

Topic

Ratios and Rates

Description

This example focuses on ratios using black and green socks among a variety of colored socks. The image displays pairs of socks in black, green, orange, yellow, blue, and red. Students are asked to determine the ratio of black socks to green socks. The solution shows that there are 2 pairs of black socks and 10 pairs of green socks, resulting in a ratio of 2 : 10, which simplifies to 1 : 5.

Ratios and Rates
Math Example--Ratios and Rates--Example 6 Math Example--Ratios and Rates--Example 6 Math Example--Ratios and Rates--Example 6

Topic

Ratios and Rates

Description

This example explores ratios using geometric shapes of different colors. The image displays various shapes in yellow, blue, red, and green. Students are asked to determine the ratio of circular shapes to yellow objects. The solution reveals that there are 2 circular shapes and 1 yellow object, resulting in a ratio of 2 : 1, which is already in its simplest form.

Ratios and Rates
Math Example--Ratios and Rates--Example 7 Math Example--Ratios and Rates--Example 7 Math Example--Ratios and Rates--Example 7

Topic

Ratios and Rates

Description

This example focuses on ratios using geometric shapes. The image displays various shapes in yellow, blue, red, and green. Students are asked to determine the ratio of triangles to quadrilaterals. The solution shows that there are 4 triangles and 6 quadrilaterals, resulting in a ratio of 4 : 6, which simplifies to 2 : 3.

Ratios and Rates
Math Example--Ratios and Rates--Example 8 Math Example--Ratios and Rates--Example 8 Math Example--Ratios and Rates--Example 8

Topic

Ratios and Rates

Description

This example explores ratios using geometric shapes and colors. The image displays various shapes in yellow, blue, red, and green. Students are asked to determine the ratio of octagons to blue shapes. The solution reveals that there are 2 octagons and 5 blue shapes, resulting in a ratio of 2 : 5, which is already in its simplest form.

Ratios and Rates
Math Example--Ratios and Rates--Example 9 Math Example--Ratios and Rates--Example 9 Math Example--Ratios and Rates--Example 9

Topic

Ratios and Rates

Description

This example introduces the concept of ratios in genetics using a Punnett square. The image shows genetic combinations for a flower's color, including RR, Rw, and ww, with corresponding images of red and white flowers. Students are asked to determine the ratio of different gene combinations.

Ratios and Rates
Math Example--Ratios and Rates--Ratios with Fractions--Example 1 Math Example--Ratios and Rates--Ratios with Fractions--Example 1 Ratios with Fractions--Example 1

Topic

Ratios and Fractions

Description

In many scenarios, ratios are expressed using whole numbers, yet there are instances, like in recipes, where fractions play a significant role. This example illustrates a ratio involving fractions and demonstrates how to convert it into a ratio with whole numbers. Students will engage in understanding the process of converting these fractions to whole numbers, enhancing their comprehension of ratios and their practical applications such as cooking or mixing. The focus is on the fundamental skill of fraction conversion and applying it in a ratio context.

Ratios and Rates
Math Example--Ratios and Rates--Ratios with Fractions--Example 10 Math Example--Ratios and Rates--Ratios with Fractions--Example 10 +Ratios with Fractions--Example 10

Topic

Ratios and Fractions

Description

In many scenarios, ratios are expressed using whole numbers, yet there are instances, like in recipes, where fractions play a significant role. This example illustrates a ratio involving fractions and demonstrates how to convert it into a ratio with whole numbers. Students will engage in understanding the process of converting these fractions to whole numbers, enhancing their comprehension of ratios and their practical applications such as cooking or mixing. The focus is on the fundamental skill of fraction conversion and applying it in a ratio context.

Ratios and Rates
Math Example--Ratios and Rates--Ratios with Fractions--Example 11 Math Example--Ratios and Rates--Ratios with Fractions--Example 11 Ratios with Fractions--Example 11

Topic

Ratios and Fractions

Description

In many scenarios, ratios are expressed using whole numbers, yet there are instances, like in recipes, where fractions play a significant role. This example illustrates a ratio involving fractions and demonstrates how to convert it into a ratio with whole numbers. Students will engage in understanding the process of converting these fractions to whole numbers, enhancing their comprehension of ratios and their practical applications such as cooking or mixing. The focus is on the fundamental skill of fraction conversion and applying it in a ratio context.

Ratios and Rates
Math Example--Ratios and Rates--Ratios with Fractions--Example 2 Math Example--Ratios and Rates--Ratios with Fractions--Example 2 Ratios with Fractions--Example 2

Topic

Ratios and Fractions

Description

In many scenarios, ratios are expressed using whole numbers, yet there are instances, like in recipes, where fractions play a significant role. This example illustrates a ratio involving fractions and demonstrates how to convert it into a ratio with whole numbers. Students will engage in understanding the process of converting these fractions to whole numbers, enhancing their comprehension of ratios and their practical applications such as cooking or mixing. The focus is on the fundamental skill of fraction conversion and applying it in a ratio context.

Ratios and Rates
Math Example--Ratios and Rates--Ratios with Fractions--Example 3 Math Example--Ratios and Rates--Ratios with Fractions--Example 3 Ratios with Fractions--Example 3

Topic

Ratios and Fractions

Description

In many scenarios, ratios are expressed using whole numbers, yet there are instances, like in recipes, where fractions play a significant role. This example illustrates a ratio involving fractions and demonstrates how to convert it into a ratio with whole numbers. Students will engage in understanding the process of converting these fractions to whole numbers, enhancing their comprehension of ratios and their practical applications such as cooking or mixing. The focus is on the fundamental skill of fraction conversion and applying it in a ratio context.

Ratios and Rates
Math Example--Ratios and Rates--Ratios with Fractions--Example 4 Math Example--Ratios and Rates--Ratios with Fractions--Example 4 Ratios with Fractions--Example 4

Topic

Ratios and Fractions

Description

In many scenarios, ratios are expressed using whole numbers, yet there are instances, like in recipes, where fractions play a significant role. This example illustrates a ratio involving fractions and demonstrates how to convert it into a ratio with whole numbers. Students will engage in understanding the process of converting these fractions to whole numbers, enhancing their comprehension of ratios and their practical applications such as cooking or mixing. The focus is on the fundamental skill of fraction conversion and applying it in a ratio context.

Ratios and Rates
Math Example--Ratios and Rates--Ratios with Fractions--Example 5 Math Example--Ratios and Rates--Ratios with Fractions--Example 5 Ratios with Fractions--Example 5

Topic

Ratios and Fractions

Description

In many scenarios, ratios are expressed using whole numbers, yet there are instances, like in recipes, where fractions play a significant role. This example illustrates a ratio involving fractions and demonstrates how to convert it into a ratio with whole numbers. Students will engage in understanding the process of converting these fractions to whole numbers, enhancing their comprehension of ratios and their practical applications such as cooking or mixing. The focus is on the fundamental skill of fraction conversion and applying it in a ratio context.

Ratios and Rates
Math Example--Ratios and Rates--Ratios with Fractions--Example 6 Math Example--Ratios and Rates--Ratios with Fractions--Example 6 Ratios with Fractions--Example 6

Topic

Ratios and Fractions

Description

In many scenarios, ratios are expressed using whole numbers, yet there are instances, like in recipes, where fractions play a significant role. This example illustrates a ratio involving fractions and demonstrates how to convert it into a ratio with whole numbers. Students will engage in understanding the process of converting these fractions to whole numbers, enhancing their comprehension of ratios and their practical applications such as cooking or mixing. The focus is on the fundamental skill of fraction conversion and applying it in a ratio context.

Ratios and Rates
Math Example--Ratios and Rates--Ratios with Fractions--Example 7 Math Example--Ratios and Rates--Ratios with Fractions--Example 7 Ratios with Fractions--Example 7

Topic

Ratios and Fractions

Description

In many scenarios, ratios are expressed using whole numbers, yet there are instances, like in recipes, where fractions play a significant role. This example illustrates a ratio involving fractions and demonstrates how to convert it into a ratio with whole numbers. Students will engage in understanding the process of converting these fractions to whole numbers, enhancing their comprehension of ratios and their practical applications such as cooking or mixing. The focus is on the fundamental skill of fraction conversion and applying it in a ratio context.

Ratios and Rates
Math Example--Ratios and Rates--Ratios with Fractions--Example 8 Math Example--Ratios and Rates--Ratios with Fractions--Example 8 Ratios with Fractions--Example 8

Topic

Ratios and Fractions

Description

In many scenarios, ratios are expressed using whole numbers, yet there are instances, like in recipes, where fractions play a significant role. This example illustrates a ratio involving fractions and demonstrates how to convert it into a ratio with whole numbers. Students will engage in understanding the process of converting these fractions to whole numbers, enhancing their comprehension of ratios and their practical applications such as cooking or mixing. The focus is on the fundamental skill of fraction conversion and applying it in a ratio context.

Ratios and Rates
Math Example--Ratios and Rates--Ratios with Fractions--Example 9 Math Example--Ratios and Rates--Ratios with Fractions--Example 9 Ratios with Fractions--Example 9

Topic

Ratios and Fractions

Description

In many scenarios, ratios are expressed using whole numbers, yet there are instances, like in recipes, where fractions play a significant role. This example illustrates a ratio involving fractions and demonstrates how to convert it into a ratio with whole numbers. Students will engage in understanding the process of converting these fractions to whole numbers, enhancing their comprehension of ratios and their practical applications such as cooking or mixing. The focus is on the fundamental skill of fraction conversion and applying it in a ratio context.

Ratios and Rates
Math Example--Ratios and Rates--Trig Ratios--Example 1 Math Example--Ratios and Rates--Trig Ratios--Example 1 Math Example--Ratios and Rates--Trig Ratios--Example 1

This is part of a collection of math examples that focus on ratios and rates.

Trig Expressions and Identities
Math Example--Ratios and Rates--Trig Ratios--Example 2 Math Example--Ratios and Rates--Trig Ratios--Example 2 Math Example--Ratios and Rates--Trig Ratios--Example 2

This is part of a collection of math examples that focus on ratios and rates.

Trig Expressions and Identities
Math Example--Ratios and Rates--Trig Ratios--Example 3 Math Example--Ratios and Rates--Trig Ratios--Example 3 Math Example--Ratios and Rates--Trig Ratios--Example 3

This is part of a collection of math examples that focus on ratios and rates.

Trig Expressions and Identities
Math Example--Ratios and Rates--Trig Ratios--Example 4 Math Example--Ratios and Rates--Trig Ratios--Example 4 Math Example--Ratios and Rates--Trig Ratios--Example 4

This is part of a collection of math examples that focus on ratios and rates.

Trig Expressions and Identities
Math Example--Ratios and Rates--Trig Ratios--Example 5 Math Example--Ratios and Rates--Trig Ratios--Example 5 Math Example--Ratios and Rates--Trig Ratios--Example 5

This is part of a collection of math examples that focus on ratios and rates.

Trig Expressions and Identities
Math Example--Ratios and Rates--Trig Ratios--Example 6 Math Example--Ratios and Rates--Trig Ratios--Example 6 Math Example--Ratios and Rates--Trig Ratios--Example 6

This is part of a collection of math examples that focus on ratios and rates.

Trig Expressions and Identities
Math Example--Ratios and Rates--Trig Ratios--Example 7 Math Example--Ratios and Rates--Trig Ratios--Example 7 Math Example--Ratios and Rates--Trig Ratios--Example 7

This is part of a collection of math examples that focus on ratios and rates.

Trig Expressions and Identities
Math Example--Ratios and Rates--Trig Ratios--Example 8 Math Example--Ratios and Rates--Trig Ratios--Example 8 Math Example--Ratios and Rates--Trig Ratios--Example 8

This is part of a collection of math examples that focus on ratios and rates.

Trig Expressions and Identities
Math Example--Ratios and Rates--Trig Ratios--Example 9 Math Example--Ratios and Rates--Trig Ratios--Example 9 Math Example--Ratios and Rates--Trig Ratios--Example 9

This is part of a collection of math examples that focus on ratios and rates.

Trig Expressions and Identities
Video Transcript: Ratios and Rates: Converting Measurement Units Video Transcript: Ratios and Rates: Converting Measurement Units Video Transcript: Ratios and Rates: Converting Measurement Units

This is the transcript that goes with the video segment entitled Video Tutorial: Ratios and Rates: Converting Measurement Units.

This is part of a collection of video transcripts for the video tutorial series on Ratios. To see the complete collection of transcripts, click on this link. Note: The download is a PDF file. Video Transcript Library

To see the complete collection of video transcriptsy, click on this link.

Ratios and Rates
Video Transcript: Ratios and Rates: Rates and Slopes of Lines Video Transcript: Ratios and Rates: Rates and Slopes of Lines Video Transcript: Ratios and Rates: Rates and Slopes of Lines

This is the transcript that goes with the video segment entitled Video Tutorial: Ratios and Rates: Rates and Slopes of Lines.

This is part of a collection of video transcripts for the video tutorial series on Ratios. To see the complete collection of transcripts, click on this link. Note: The download is a PDF file. Video Transcript Library

To see the complete collection of video transcriptsy, click on this link.

Ratios and Rates
Video Transcript: Ratios and Rates: Rates from Data Video Transcript: Ratios and Rates: Rates from Data Video Transcript: Ratios and Rates: Rates from Data

This is the transcript that goes with the video segment entitled Video Tutorial: Ratios and Rates: Rates from Data.

This is part of a collection of video transcripts for the video tutorial series on Ratios. To see the complete collection of transcripts, click on this link. Note: The download is a PDF file. Video Transcript Library

To see the complete collection of video transcriptsy, click on this link.

Video Library

To see the complete collection of videos in the Video Library, click on this link.

Ratios and Rates
Video Transcript: Ratios and Rates: Ratios as Decimals Video Transcript: Ratios and Rates: Ratios as Decimals Video Transcript: Ratios and Rates: Ratios as Decimals

This is the transcript that goes with the video segment entitled Video Tutorials: Ratios and Rates: Ratios and Decimals.

This is part of a collection of video transcripts for the video tutorial series on Ratios. To see the complete collection of transcripts, click on this link. Note: The download is a PDF file. Video Transcript Library

To see the complete collection of video transcriptsy, click on this link.

Video Library

To see the complete collection of videos in the Video Library, click on this link.

Ratios and Rates
Video Transcript: Ratios, Proportions, and Percents: Calculating Percents Video Transcript: Ratios, Proportions, and Percents: Calculating Percents Video Transcript: Ratios, Proportions, and Percents: Calculating Percents

This is the transcript that goes with the video segment entitled Video Tutorials: Ratios, Proportions, and Percents: Calculating Percents.

This is part of a collection of video transcripts for the video tutorial series on Ratios. To see the complete collection of transcripts, click on this link. Note: The download is a PDF file. Video Transcript Library

To see the complete collection of video transcriptsy, click on this link.

Ratios and Rates
Video Transcript: Ratios: Rates Video Transcript: Ratios: Rates Video Transcript: Ratios: Rates

What Are Ratios?

A ratio is the relationship between two or more quantities among a group of items.

Ratios and Rates
Video Transcript: Ratios: Unit Rates Video Transcript: Ratios: Unit Rates Video Transcript: Ratios: Unit Rates

What Are Ratios?

A ratio is the relationship between two or more quantities among a group of items.

Ratios and Rates
VideoTutorial--Ratios13Thumbnail.jpg Video Tutorial: Ratios, Video 13 Video Tutorial: Ratios and Rates: Rates from Data

This is part of a collection of video tutorials on the topic of Ratios and Proportions. This series includes a complete overview of ratios, equivalent ratios, rates, unit rates, and proportions. The following section will provide additional background information for the complete series of videos.

What Are Ratios?

A ratio is the relationship between two or more quantities among a group of items. The purpose of a ratio is find the relationship between two or more items in the collection.

Let's look at an example.

Ratios and Rates
VideoTutorial--Ratios14Thumbnail.jpg Video Tutorial: Ratios, Video 14 Video Tutorial: Ratios and Rates: Rates and Slopes of Lines

This is part of a collection of video tutorials on the topic of Ratios and Proportions. This series includes a complete overview of ratios, equivalent ratios, rates, unit rates, and proportions. The following section will provide additional background information for the complete series of videos.

What Are Ratios?

A ratio is the relationship between two or more quantities among a group of items. The purpose of a ratio is find the relationship between two or more items in the collection.

Let's look at an example.

Ratios and Rates
VideoTutorial--Ratios15Thumbnail.jpg Video Tutorial: Ratios, Video 15 Video Tutorial: Ratios and Rates: Converting Measurement Units

This is part of a collection of video tutorials on the topic of Ratios and Proportions. This series includes a complete overview of ratios, equivalent ratios, rates, unit rates, and proportions. The following section will provide additional background information for the complete series of videos.

What Are Ratios?

A ratio is the relationship between two or more quantities among a group of items. The purpose of a ratio is find the relationship between two or more items in the collection.

Let's look at an example.

Ratios and Rates
VideoTutorial--Ratios16Thumbnail.jpg Video Tutorial: Ratios, Video 16 Video Tutorial: Ratios, Proportions, and Percents: Calculating Percents

This is part of a collection of video tutorials on the topic of Ratios and Proportions. This series includes a complete overview of ratios, equivalent ratios, rates, unit rates, and proportions. The following section will provide additional background information for the complete series of videos.

What Are Ratios?

A ratio is the relationship between two or more quantities among a group of items. The purpose of a ratio is find the relationship between two or more items in the collection.

Let's look at an example.

Ratios and Rates
Video Tutorial: Ratios: Visual Models for Ratios and Percents Video Tutorial: Ratios, Video 17 Video Tutorial: Ratios: Visual Models for Ratios and Percents

This is part of a collection of video tutorials on the topic of Ratios and Proportions. This series includes a complete overview of ratios, equivalent ratios, rates, unit rates, and proportions. The following section will provide additional background information for the complete series of videos.

What Are Ratios?

A ratio is the relationship between two or more quantities among a group of items. The purpose of a ratio is find the relationship between two or more items in the collection.

Let's look at an example.

Ratios and Rates
VideoTutorial--Ratios18Thumbnail.jpg Video Tutorial: Ratios, Video 18 Video Tutorial: Ratios and Rates: Ratios as Decimals

This is part of a collection of video tutorials on the topic of Ratios and Proportions. This series includes a complete overview of ratios, equivalent ratios, rates, unit rates, and proportions. The following section will provide additional background information for the complete series of videos.

What Are Ratios?

A ratio is the relationship between two or more quantities among a group of items. The purpose of a ratio is find the relationship between two or more items in the collection.

Let's look at an example.

Ratios and Rates
VideoTutorial--Ratios9Thumbnail.jpg Video Tutorial: Ratios, Video 9 Video Tutorial: Ratios: Unit Rates

This is part of a collection of video tutorials on the topic of Ratios and Proportions. This series includes a complete overview of ratios, equivalent ratios, rates, unit rates, and proportions. The following section will provide additional background information for the complete series of videos.

What Are Ratios?

A ratio is the relationship between two or more quantities among a group of items. The purpose of a ratio is find the relationship between two or more items in the collection.

Let's look at an example.

Ratios and Rates
VIDEO: Algebra Applications: Inequalities, Segment 1: Hybrid Cars. VIDEO: Algebra Applications: Inequalities, 1 VIDEO: Algebra Applications: Inequalities, Segment 1: Hybrid Cars

With the increasing demand worldwide for cars, the cost of gasoline continues to rise. The need for fuel-efficient cars makes hybrids a current favorite. An examination of the equations and inequalities that involve miles per gallon (mpg) for city and highway traffic reveals important information about hybrid cars and those with gasoline-powered engines. Students use the Graphs and Geometry features of the TI-Nspire.

This is part of a collection of videos from the Algebra Applications video series on the topic of Inequalities.

Applications of Equations and Inequalities and Inequalities
Worksheet: Unit Rates and Data Tables, Worksheet 01 Worksheet: Unit Rates and Data Tables, Worksheet 01 Worksheet: Unit Rates and Data Tables, Worksheet 01

This is part of a collection of math worksheets on the topic of unit rates.

To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.

Related Resources

To see additional resources on this topic, click on the Related Resources tab.

Worksheet Library

To see the complete collection of Worksheets, click on this link.
Ratios and Rates
Worksheet: Unit Rates and Data Tables, Worksheet 02 Worksheet: Unit Rates and Data Tables, Worksheet 02 Worksheet: Unit Rates and Data Tables, Worksheet 02

This is part of a collection of math worksheets on the topic of unit rates.

To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.

Related Resources

To see additional resources on this topic, click on the Related Resources tab.

Worksheet Library

To see the complete collection of Worksheets, click on this link.
Ratios and Rates
Worksheet: Unit Rates and Data Tables, Worksheet 03 Worksheet: Unit Rates and Data Tables, Worksheet 03 Worksheet: Unit Rates and Data Tables, Worksheet 03

This is part of a collection of math worksheets on the topic of unit rates.

To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.

Related Resources

To see additional resources on this topic, click on the Related Resources tab.

Worksheet Library

To see the complete collection of Worksheets, click on this link.
Ratios and Rates
Worksheet: Unit Rates and Data Tables, Worksheet 04 Worksheet: Unit Rates and Data Tables, Worksheet 04 Worksheet: Unit Rates and Data Tables, Worksheet 04

This is part of a collection of math worksheets on the topic of unit rates.

To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.

Related Resources

To see additional resources on this topic, click on the Related Resources tab.

Worksheet Library

To see the complete collection of Worksheets, click on this link.
Ratios and Rates