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.
National Council of Teachers of Mathematics
The Math Forum: Calculating Sales Tax
Dr. Math is asked about calculating sales tax. A quick and easy to follow explanation of how it works using fractions, decimals, ratio, and percent.
McGraw Hill
Glencoe: Self Check Quizzes 2: Ratios
Use Glencoe's Math Course 2 randomly generated self-checking quiz to test your knowledge of ratios. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the "Check It"...
McGraw Hill
Glencoe: Self Check Quizzes 1 Ratios
Use Glencoe's randomly generated self-checking quiz to test your knowledge of ratios. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the "Check It" button and the...
CK-12 Foundation
Ck 12: Interactive Middle School Math 7 for Ccss
A complete CCSS Grade 7 Mathematics course that includes interactives in every lesson, plus videos, hands-on activities, and questions with immediate feedback. Every lesson also has specifically chosen 'Related Modalities' that teach the...
Khan Academy
Khan Academy: Percent Word Problems
Practice solving word problems involving percents. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Math Planet
Math Planet: Pre Algebra: Solving Problems With Percent
Discover how to solve problems with percent by taking a look at examples and a video lesson.
Other
Center School District: Everyday Math Resources
Everyday Math Resources for 5th grade is an excellent resource for both students and teachers. Twelve math strands are linked to activities and interactive games that support the learning outcomes. Click on links at the top to access...
Khan Academy
Khan Academy: Converting Percents & Fractions
Practice writing percents as fractions and fractions as percents. For example, convert 30% to a simplified fraction. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Illustrative Mathematics
Illustrative Mathematics: 6.rp Dana's House
Students use ratio and rate to solve this real-world math performance task: The lot that Dana is buying for her new one story house is 35 yards by 50 yards. Dana's house plans show that her house will cover 1,600 square feet of land....
Education Place
Houghton Mifflin: Eduplace: Extra Practice Quiz Percent as a Ratio
Find the percent using a ratio and find a ratio using a percent. Read the interactive quiz rules and then click on the "Begin" ticket. If you answer incorrectly you get one more chance to try again then you are told the correct answer....
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: Percents Are Ratios
This Math Page tutorial explains how percents are ratios and then features a practice exercise.
University of Waterloo (Canada)
University of Waterloo: Ratios, Rate, & Percent [Pdf]
The mathematics resource explores number sense and numeration. Learners examine ratios, rates, and percentages.
PBS
Pbs: The Lowdown: Examining California's Prison System: Real World Ratio
In this infographic from KQED, examine age, gender, and race in California's prison population to note the inconsistencies between who is in the general population and who is serving time behind bars. In the accompanying classroom...
Khan Academy
Khan Academy: Finding Percents
Find a percent of a quantity as a rate per 100; solve problems involving finding the whole, given a part and the percent. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive...
Math Planet
Math Planet: Algebra 1: Calculating With Percents
Provides examples and a video lesson that illustrates how to solve percent problems.
Other
Nearpod: Percents: Finding the Percent
In this activity, students will learn how to find the missing percent when given the part and the whole.
Khan Academy
Khan Academy: Converting Decimals to Percents
Practice expressing a decimal like 0.546 as a percent. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Converting Percents to Decimals
Practice expressing a percent like 12.3% as a decimal. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
PBS
Pbs: Real Life Math: Physical Trainer
The general manager of a fitness center explains how numerical calculations, percentages, and ratios are critical to his job in this video from KAET. In the accompanying classroom activity, students explore percentages, fractions, and...
Other
Nearpod: Percents: Finding the Part
In this lesson, learners will learn how to find the missing part when given the percent and the whole.
University of Waterloo (Canada)
Ratio, Rates, and Percentages: Grade 8 [Pdf]
Learners learn about ratios, rates, and percentages. The resource consists of a percentage game and practice problems in pdf format.
Teaching Treasures Publications
Teaching Treasures: Year Seven Math (Page 2)
Explore fractions in geometric shapes using this interactive worksheet. Concepts include ratio, fractions to decimals, decimals to fractions, and percent. Immediate feedback is given to responses.
Illustrative Mathematics
Illustrative Mathematics: 7.rp.3 Lincoln's Math Problem
The purpose of this task is for students to solve a multi-step problem involving simple interest. The Aligns with 7.RP.A.3. The task provides both a problem and the solution.