Maths Challenge
Maths challenge.net: Blonde Hair Brown Eyes
A problem involving fractions to determine the fraction of people in a class that have brown eyes.
Illustrative Mathematics
Illustrative Mathematics: 7.rp Cooking With the Whole Cup
In this lesson, 7th graders use knowledge of ratios of fractions to solve the word problems.
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.
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...
Alabama Learning Exchange
Alex: Cool Kool Aid Experiment
This lesson allows students to practice writing and solving rates by conducting an experiment to find the best tasting Kool-Aid mixture. It gives an assessment and ideas for remediation, extension as well as ways to manage behavior...
PBS
Pbs Learning Media: Engineer a Jetliner
In this interactive lesson, students will experience the engineering design process as an aerospace engineer assigned to design and test an airplane.
PBS
Pbs Learning Media: Kid Vid: Fractions and Scale
Students think about how fractional measurements relate to scale models, learn about alternate ways of expressing scale ratios, and demonstrate understanding of fractions and scale in this interactive from KET. After watching video...
Sophia Learning
Sophia: Measurement Comparisons: Lesson 3
This lesson explains how to compare measurements using ratios. It is 3 of 5 in the series titled "Measurement Comparisons."
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.
Calculator Soup
Calculator Soup: Ratio to Fraction Calculator
Convert ratios to fractions. The ratio to fraction calculator finds fraction equivalents of ratio terms and reduces the fractions to simplest form.