Discover how percents and proportions help explain issues like climate change, composting, and zero waste in this video from KQED. In the accompanying classroom activity, students estimate the percentage of various types of trash that...

Puzzle together with Adrian and his street band and learn about fractions, decimals and percentages.

Students are assessed on their math skills (knowledge of ratios, percentages, volume, and measurement conversions), as well as their ability to write equations, read tables, and analyze information. This quiz was designed to help...

Explore the math of worldwide food waste, with focus on percentage, in this infographic from KQED. In the accompanying classroom activity, students predict the percent of food in each of the various categories (e.g., grains, fruit, etc.)...

An interactive quiz which provides students with word problems involving a percentage to be solved. Students input their solution and have the program evaluate it. Hints are available if the student needs them, and explanations are...

Test your bargin shopping skills by figuring out which discount offers the greatest savings. A one page activity from the NCTM Math Challenges for Families series that focuses on understanding and calculating percentages. Connections...

This site provides shortcuts and hints on how to do more complicated percentages without a calculator. For others beside 2.5, scroll down the left column and click percentage of choice under "Percents."

"Rated 'M' for middle school," Math TV invites you to tune in each week for videos of word problems being solved. Back episodes are available in subjects such as percentages, number sense, and fractions. Watch a problem worked out, then...

Conversion calculators for English language learners. Includes calculators for converting temperature, currency, measurement, time, distances, and percentages. Java is required.

Get independent practice applying percent concept to real world situations. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.

This StudyCards stack enables students to review concepts in algebra, arithmetic, and geometry, in preparation for the Math A Exam held in New York. They solve problems involving scientific notation, factoring, linear equations, rate of...

This AAA Math tutorial covers calculating percents, relationships of percents to fractions and decimals, and uses of percents.

The King of Syracuse reportedly requested Archimedes' advice for determining if a crown was made with the appropriate mixture of gold and silver. The problem asks students to find the amount of water displaced in Archimedes' experiment...

Students use percentage and addition to answer this real-world math performance task: Kendall bought a vase that was priced at $450. In addition, she had to pay 3% sales tax. How much did she pay for the vase?

The Yale-New Haven Teachers Institute site contains various math exercises relating to percentage and consumer-related problems. An explanation of sales tax, a related problem and answer are given.

In this lesson, learners explore the concepts of fractions, percentages, and decimals by creating dances using locomotor and non-locomotor movements.

Use Glencoe's Math Course 2 randomly generated self-checking quiz to test your knowledge of the percent of change. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the...

Use Glencoe's Math Course 2 randomly generated self-checking quiz to test your knowledge of using percent equations to solve percent problems. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the...

In this video segment from TV 411, learn how to read nutrition labels on food containers and calculate the calorie content of different serving amounts.

In this Cyberchase video segment, the CyberSquad uses fractions and percents to compare the contest results of the Squitters, little creatures who love to jump.

Use Glencoe's randomly generated self-checking quiz to test your knowledge of estimating with percents. 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"...

Heres a comprehensive review of the basics of algebra. WyzAnt includes lessons on varied topics, calculators that show step-by-step solutions, and interactive worksheets for practicing and testing your skills. Just choose a topic and use...

Ari has collected data on how much her classmates study each week and how well they did on their recent math test. Here is part of the data showing the percentage of each group (divided according to hours spent studying) who got B's or...

This QuickMath activity changes percentages to decimals or fraction and vice versa. It also calculates a certain percent of a number or vice versa.