ClassFlow
Class Flow: Ratio
[Free Registration/Login Required] In this flipchart, students apply their understanding of ratio, percent, and direct proportion in various situations. Students solve problems involving ratio and proportion with similar figures and with...
Free Math Help
Free Math Help: Proportions and Ratios
The tutorial investigates proportions and ratios. The lesson includes explanations on solving problems with ratios using cross multiplication.
Math Is Fun
Math Is Fun: Ratios
After reading a simple definition of "ratios", you can explore many examples of ratio use in the real world.
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.
National Council of Teachers of Mathematics
The Math Forum: Height to Weight Ratio
A student asks Dr. Math, "If I have a friend that weighs 155 pounds and is five feet, four inches tall, what is his height-to-weight ratio?" Find out how Dr. Math solves this problem and get a better understanding of the concept of ratio.
Purple Math
Purplemath: Proportions: Introduction
Explains the basics and terminology of proportions.
![Macomb Intermediate School District: Mathematics: Ratios and Rates [Pdf] Unknown Type](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Macomb Intermediate School District: Mathematics: Ratios and Rates [Pdf] Unknown Type")
Other
Macomb Intermediate School District: Mathematics: Ratios and Rates [Pdf]
Activities for students that allow them to explore the concept of comparing ratios and unit rates using real-world scenarios.
Ducksters
Ducksters: Kids Math: Ratios, Fractions, and Percentages
This page explores how ratios can be written as fractions. The site also discusses proportions and reducing ratios with problems and examples.