University of South Florida
Fcat: Using Proportions and Go Fish!
Students "go fishing" and use proportions to learn how estimating is used to determine the size of a population.
Other
Helping With math.com: Ratios and Unit Rates
This site contains a lesson about ratios and unit rates as well as guided and independent practice for learners to review the skills.
Cuemath
Cuemath: Proportion
A comprehensive guide for learning all about proportions with definitions, proportion formulas, types of proportions, properties of proportions, the difference between ratio and proportion, solved examples, and practice questions.
The Math League
The Math League: Ratio and Proportion
This tutorial provides definitions and examples of ratios and proportions and features comparing ratios and converting rates.
Discovery Education
Discovery Education: Web Math: Proportions
This WebMath site provides a general description of proportions. Content also includes a 'problem solver' which lists step-by-step instructions on how to obtain the correct answer.
McGraw Hill
Glencoe: Self Check Chapter Test Exploring Ratio, Proportions, and Percent
The interactive assessment examines ratios, proportions, and percents. Students complete 14 questions created by Glencoe. Hints and solutions are included.
McGraw Hill
Glencoe: Self Check Chapter Test Ratio, Proportion, and Percent
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...
McGraw Hill
Glencoe: Self Check Chapter Test Ratio, Proportions, and Percent 20 Questions
The interactive assessment examines ratios, proportions, and percents. Students complete 20 questions created by Glencoe. Hints and solutions are included.
BBC
Bbc Skillswise: Percent and Fractions: Ratio and Proportion
Activities and factsheets exploring ratios and proportions in everyday life. Interactive, colorful, and fun.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Ratio and Proportion
The Math Page tutorial explains and defines ratio and proportion and includes this practice section at the end of the lesson.
McGraw Hill
Glencoe Mathematics: Online Study Tools: Ratio, Proportion, and Percent
Students show comprehension of basic arithmetic skills. The online test assesses scholars on ratios, proportions, and percents.
Math.com
Math.com: Proportions
This lesson explains proportions along with the formula to determine if the ratios are equal. An interactive practice activity is included.
Other
Nm Learning Games Lab: Math Snacks
Games and videos, each accompanied by guidelines for teachers and students, cover math topics such as proportion, ratio, number line, scale, and measurement. Downloads are available for iPad, iPhone, and iPod Touch.
Rice University
Rice University: Cynthia Lanius: Golden Ratio
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...
National Council of Teachers of Mathematics
The Math Forum: Ratios and Fractions
A seventh-grade student is having trouble understanding ratios, fractions, and simplest form. Dr. Math to the rescue! Real-world, easy to grasp examples.
PBS
Pbs: Recognize and Represent Proportional Relationships Between Quantities: Ratio, Proportion, Cross Multiply, Divide
In this Cyberchase media gallery, learn about ratio and proportion and how to use an algebraic shortcut to solve proportion problems. In the accompanying classroom activity, students play a game called the "Pom-Pom Nose Push," in which...
Primary Resources
Primary Resources: Ratio and Proportion
A collection of teacher resources to aid in teaching and reviewing ratio and proportion in math. There are worksheets, PowerPoint presentations, activities, and smartboard activities available for the teacher to download.
Rice University
Rice University: Cynthia Lanius: All About Ratios
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.
PBS
Pbs: Human Tree: Ratios
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...
PBS
Pbs: The Lowdown: The Math of Trash: Percents and Proportions
Discover how percents and proportions help explain issues like climate change, composting, and zero waste in this video from KQED. In the accompanying classroom activity, students estimate the percentage of various types of trash that...
Math Drills
Math Drills: Fractions Worksheets
Download and print these worksheets to sharpen your skills working with fractions. Worksheets focus on modeling fractions, ratios and proportions, comparing, ordering, simplifying, converting, and order of operations.
Mangahigh
Mangahigh: Number: Working With Ratios
Deterime the ratios of amounts to one another and then simplify.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Solving a Ratio With & Without a Diagram
A student is searching for a solution to a ratio question without using a diagram. Dr. Math helps to break it down both with and without a diagram. An understanding of fractions, multiplication, and basic algebra is necessary to get this...
Wolfram Research
Wolfram Math World: Golden Ratio
Math World explains the Golden Ratio, gives the formula for finding the irrational number, and expresses this value as an infinite series. Also defines and represents the Ratio geometrically, its relationship to the Fibonacci numbers,...