eBook
Math Planet

Math Planet: Algebra1: Ratios and Proportions and How to Solve Them

For Students 9th - 10th
Provides examples and a video lesson that explains ratios and proportions and shows how to solve them.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Proportion Properties

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to set up and solve proportions.
Handout
Purple Math

Purplemath: Ratios

For Students 6th - 8th Standards
Explains the basic terminology and formatting of ratios, and demonstrates how to solve typical exercises.
Unit Plan
Khan Academy

Khan Academy: Interpreting Graphs of Proportional Relationships

For Students 6th - 8th Standards
Practice reading and analyzing graphs of proportional relationships. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Khan Academy

Khan Academy: Writing Proportional Equations

For Students 6th - 8th Standards
Practice writing equations to describe proportional relationships. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Khan Academy

Khan Academy: Proportion Word Problems

For Students 5th - 7th Standards
Practice setting up and solving proportions to solve word problems. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Khan Academy

Khan Academy: Solving Proportions

For Students 6th - 8th Standards
Practice solving basic proportions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Khan Academy

Khan Academy: Writing Proportions

For Students 6th - 8th Standards
Practice writing proportions to describe real-world situations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
CK-12 Foundation

Ck 12: Chemistry: Mass Ratio Calculation

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Explains mass ratio definition and mass ratio calculations.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Proportion Properties

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Apply proportion properties.
Unit Plan
University of Minnesota

U Mn: Gender Ratios in Global Migration: Men Who Migrate, Women Who Wait?

For Students 9th - 10th
This resource uses a text and graph to show how the gender ratio of international migrants - the proportion of male to female migrants - has changed over time. Its goal is to stimulate thinking about shifting gender ratios in global...
PPT
Sophia Learning

Sophia: Equivalent Ratios: Lesson 5

For Students 7th - 8th Standards
This lesson will introduce the means and extremes of a proportion, and demonstrate how to use cross multiplication to determine if two ratios are equivalent. It is 5 of 8 in the series titled "Equivalent Ratios."
Unit Plan
Sophia Learning

Sophia: Equivalent Ratios: Lesson 8

For Students 7th - 8th Standards
This lesson will introduce the means and extremes of a proportion, and demonstrate how to use cross multiplication to determine if two ratios are equivalent. It is 8 of 8 in the series titled "Equivalent Ratios."
Interactive
Mocomi & Anibrain Digital Technologies

Mocomi: Ratio and Proportion

For Students 5th - 7th Standards
Gives examples of ratios and proportions and how to solve them.
Activity
The Math League

The Math League: Ratio

For Students 4th - 8th Standards
This site gives a definition of a ratio along with two word problems. Also shows the student how to compare ratios using fractions.
Unknown Type
Wyzant

Wyzant: Proportions Basics Worksheet

For Students 9th - 10th Standards
An interactive quiz from WyzAnt of 20 proportions are presented for the students to solve and then check their answers. All can be computed with simple cross-multiplying.
PPT
Sophia Learning

Sophia: What Are Ratios?

For Students 5th - 7th Standards
This lesson defines the term ratio. Students can look at a two-page presentation of notes and practice problems.
Activity
Other

All Elementary Mathematics: Proportionality and Ratio

For Students 9th - 10th
A brief explanation of the mathematical relationship between ratio, proportion, and proportionality. Examples are included.
Activity
Shmoop University

Shmoop: Ratios & Percentages: Ratios & Proportions

For Students 9th - 10th Standards
Students learn about ratios and percentages in the tutorial. The mathematics resource consists of examples and practice problems with answers.
Activity
Free Math Help

Free Math Help: Proportions and Ratios

For Students 9th - 10th Standards
The tutorial investigates proportions and ratios. The lesson includes explanations on solving problems with ratios using cross multiplication.
Whiteboard
ClassFlow

Class Flow: Proportions

For Teachers 6th - 8th Standards
[Free Registration/Login Required] This lesson contains notes and examples for instructing how to solve proportions. Begins with relations to equivalent fractions, and then gets into solving algebraically using cross products. It...
Unknown Type
Common Core Sheets

Common Core Sheets: Ratios and Proportional Relationships 7.rp.3 Worksheets

For Teachers 7th Standards
Print or create worksheets or flashcards to assess students' understanding of how to use proportional relationships to solve multistep ratio and percent problems.
Professional Doc
Louisiana Department of Education

Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Ratios and Proportional Relationships

For Students 7th Standards
A guide to support parents as they work with their students in ratios and proportional relationships.
Unknown Type
Common Core Sheets

Common Core Sheets: Ratios and Proportional Relationships 6.rp.3c Worksheets

For Teachers 6th Standards
Print or create worksheets or flashcards to assess students' understanding of ratio concepts, useage of ratio reasoning, and percentages.

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