Whiteboard
ClassFlow

Class Flow: Math Ratio

For Teachers 3rd - 5th
[Free Registration/Login Required] The teacher will use this lesson plan flipchart to review simple problems.
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McGraw Hill

Glencoe: Self Check Chapter Test Ratio, Proportion, and Percent

For Students 6th - 8th Standards
Use Glencoe's randomly generated self-checking chapter test to assess your knowledge on ratios, proportions, and percents. Each question has a "Hint" link to help. After completing the test students can click the "Check It" button and...
Unit Plan
Khan Academy

Khan Academy: Identify Proportional Relationships

For Students 6th - 8th Standards
Practice telling whether or not the relationship between two quantities is proportional by analyzing word problems. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Activity
Rice University

Rice University: Cynthia Lanius: All About Ratios

For Students 1st - 5th
Make Texas chili as you learn about ratios in this interactive lesson. Students get immediate feedback on their responses and teachers have access to online assessment.
Activity
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Cake Recipe Ratio

For Students 9th - 10th Standards
Dr. Math has to go into the kitchen to solve this real-world problem. A student is looking for a solution to a ratio problem about baking a cake. You'll need to stir up your knowledge of ratios, fractions, decimals, proportions, and...
Unit Plan
PBS

Pbs: The Lowdown: Percents Combined: Proportional Relationships With Multistep Ratio and Percent Problems

For Students 6th - 8th
Learn how to calculate sale price when combining two "percent-off" discounts in this video from KQED. In the accompanying classroom activity, students develop and share a variety of strategies, including modeling with a 10 x 10 grid to...
Unit Plan
PBS

Pbs: Human Tree: Ratios

For Students 6th - 8th
Watch as the National Museum of Mathematics creates an interesting series of images using ratios. This video focuses on the proportional relationship observed in fractals and challenges you to do some critical thinking using ratios and...
Unit Plan
PBS

Pbs: Real World Proportional Relationships: Gender Wage Gap

For Students 6th - 8th
Using this infographic, learn how wage equity today compares with data from 50 years ago, at the dawn of the equal pay movement. The accompanying classroom activity invites students to explore the change in the gender wage gap from 1965...
Activity
Rice University

Rice University: Cynthia Lanius: Golden Ratio

For Students 9th - 10th
This site introduces students to the definition of golden ratio. It gives them a chance to estimate ratios and predict which figures are closest to the golden ratio. There is a link on this page that provides charts for students to...
Lesson Plan
Alabama Learning Exchange

Alex: Thirsty for Ratios

For Teachers 6th - 8th
In this lesson plan, the students will learn what a ratio is and how it can be used in a comparison. In this lesson plan, students will also determine how to combine a sports drink in powder form and water to make enough for a whole...
Unit Plan
E-learning for Kids

E Learning for Kids: Math: Dance Performance: Position on a Map

For Students 5th - 6th
This interactive website allows students to practice their map skills including scale factors on a map.
eBook
Math Planet

Math Planet: Algebra 1: Calculating With Percents

For Students 9th - 10th
Provides examples and a video lesson that illustrates how to solve percent problems.
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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.
Lesson Plan
PBS

Pbs: Jazz and Math: The Beat Goes On

For Teachers 9th - 10th
This lesson will require students to collect data through listening, counting and timing. They will use ratios, rates, and proportions to report data. They will also demonstrate an understanding of the concepts of rhythm and tempo in music.
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
Khan Academy

Khan Academy: The Sat Math Test: Problem Solving and Data Analysis

For Students 9th - 10th Standards
SAT Math questions fall into different categories; one of these domains is Problem Solving and Data Analysis. These questions might ask you to create an appropriate equation from a word problem, convert units, or understand the meaning...
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.
Website
Math Playground

Math Playground: Problem Solving Videos

For Students 6th - 8th
"Rated 'M' for middle school," Math TV invites you to tune in each week for videos of word problems being solved. Back episodes are available in subjects such as percentages, number sense, and fractions. Watch a problem worked out, then...
Handout
National Council of Teachers of Mathematics

The Math Forum: Ratios and Fractions

For Students 3rd - 8th Standards
A seventh-grade student is having trouble understanding ratios, fractions, and simplest form. Dr. Math to the rescue! Real-world, easy to grasp examples.
Website
Other

Mathpower: Math Fundamental Assignments

For Students 9th - 10th Standards
Math variety of concepts, this colorful website is sure to give your students the chance show what they know. Concepts covered include rounding, division with decimals, order of operations, ratio, percent, multiplication, and division of...