AAA Math
Aaa Math: Ratios
This lesson explains ratios and how to determine a ratio. Includes examples and games to practice this skill.
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.
AAA Math
Aaa Math: How to Determine a Ratio
Learners practice writing ratios in lowest terms. The resource consists of a tutorial and self-check practice problems.
University of Waterloo (Canada)
Centre for Education in Mathematics and Computing: Ratio and Rate [Pdf]
Learners explore the concepts of rate and ratio in a variety of problem-solving situations. Worksheets contain definitions and visual representations of concepts. Link to related ratio game. Other skills include measurement, data...
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.
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 students to review the skills.
Scholastic
Scholastic: Study Jams! Math: Algebra: Ratio
Explore word problems about ratios and watch and listen to all the steps needed to solve.
Mangahigh
Mangahigh: Number: Ratios
Test your knowledge of ratios by determining the equivalents and how to interpret the given ratio.
Mangahigh
Mangahigh: Number: Working With Ratios
Deterime the ratios of amounts to one another and then simplify.
Mangahigh
Mangahigh: Number: Solving Problems With Ratios
Solve ratios with only part of given information.
Khan Academy
Khan Academy: Basic Ratios
Choose the ratio that goes with a picture of two quantities like apples and bananas. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Math Playground
Dirt Bike Proportions: Race by Finding Equivalent Ratios.
Proportions where students determine the missing number to make the proportion true.
Math Playground
Ratio Stadium: Race by Finding Equivalent Ratios.
Practice finding the missing number that makes two ratios equivalent. This practice exercise is game based.
CK-12 Foundation
Ck 12: Arithmetic: Ratios
[Free Registration/Login may be required to access all resource tools.] In this lesson students write ratios, order ratios from least to greatest and greatest to least and compare ratio. Students examine guided notes, review guided...
Khan Academy
Khan Academy: Ratio Tables
Explains what ratio tables are. Includes simple examples and a few practice problems.
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...
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Ratios and Rates 2
Sixteen problems present a variety of practice simplifying ratios and writing ratios as unit rates. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View...
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Comparing Ratios and Fractions
Dr. Math helps a student see the connection between fractions and ratios using the names of Flintstone characters. A clever approach that requires an understanding of basic algebra concepts.
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.
BBC
Bbc Bitesize: Ratio
You can pick up some valuable ratio pointers here. When you finish working your way through the three instructional pages, go on to the Activity for some practice, or take an online "Test Bite" and check your understanding.
AAA Math
Aaa Math: Ratios
This short exercise gives the student a ratio in reduced terms, and then gives the students a replacement value for one part of the ratio. The student is then to input the other part of the replacement ratio so as to keep the two ratios...