Math Open Reference
Math Open Reference: Ratio
Learn about ratios with this handy reference site. Detailed explanations and examples are used to explain ratios. Also highlights common mistakes that can be made when learning about ratios.
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...
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...
Education Development Center
Tune in to Learning: Math Lesson Working With Ratios
Did you know that chefs must know how to use ratios in order to prepare meals? Learn the value of understanding how to write ratios, ratio proportionality, and ratios in lowest terms in this interactive lesson. Based on real world...
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.
BBC
Bbc Skillswise: Percent and Fractions: Ratio and Proportion
Activities and factsheets exploring ratios and proportions in everyday life. Interactive, colorful, and fun.
National Council of Teachers of Mathematics
Nctm: Figure This: Grape Juice Jungle
Are all juice grape juice concentrates the same? Find out when you explore ratio and fractions in this math challenge that compares juice recipes to identify strongest taste. A one page activity from the NCTM Math Challenges for Families...
Math Planet
Math Planet: Pre Algebra: Ratios and Percent: Rates and Ratios
Explains what rates and ratios are and how they are different. Shows how to solve an example problem about ratios and presents a video demonstrating how to show a ratio as a fraction or a decimal. [1:52]