Interactive
National Council of Teachers of Mathematics

Nctm: Illuminations: Fraction Models

For Students 3rd - 8th Standards
Numerator values can be set for 0-20. Denominator values restricted to 1, 2, 4, 5, 8, 10 and 20. Use this interactive tool to show a fraction. Adjust both the denominator and numerator and see a visual representation as a part of a...
Activity
AAA Math

Aaa Math: Percents to Fractions

For Students 3rd - 8th
This site explains how to convert percents to fractions. Games and exercises are provided to practice the skill.
Interactive
Other

Interactive Learning Sites for Education: Decimals

For Students 4th - 6th
A large collection of links to interactive activities and games on the topic of decimals.
Unknown Type
Shmoop University

Shmoop: Ratios & Percentages: Converting Percents to Fractions

For Students 9th - 10th
The mathematics tutorial examines how to convert percents to fractions. Students learn about the concept through notes, examples, and practice problems.
Interactive
Calculator Soup

Calculator Soup: Percent to Fraction Calculator

For Students 9th - 10th
This online calculator converts a percent to a fraction. If the percent value is greater than 100% it is converted into a mixed number fraction. Enter percents to convert them into fractions. The number you enter can also have decimal...
Activity
National Council of Teachers of Mathematics

The Math Forum: Calculating Sales Tax

For Students 3rd - 8th Standards
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.
Activity
Texas Instruments

Texas Instruments: Rational Timer

For Teachers 6th - 8th
Students use the calculator to play a game that requires them to convert numbers to fractions, decimals, or percent quickly and accurately.
Activity
AAA Math

Aaa Math: Converting a Percent to a Fraction

For Students 6th - 8th
Learners practice percent conversions to fractions. The resource displays the percent score of correct answers, as well as running totals of correct and incorrect answers.
Interactive
Other

Quick Math: Numbers Percentages

For Students 9th - 10th Standards
This QuickMath activity changes percentages to decimals or fraction and vice versa. It also calculates a certain percent of a number or vice versa.
Activity
Ministry of Education and Universities of the Region of Murcia (Spain)

Ministerio De Educacion Y Ciencia: Fracciones, Decimals Y Porcentajes

For Students 9th - 10th
This interactive activity deals with the concepts of fractions, comparing fractions, all different arithmetic operations with fractions, converting a fraction to a decimal form and all different calculation with percents.
Unknown Type
Khan Academy

Khan Academy: Rational Number Word Problems

For Students 6th - 8th Standards
Practice solving multi-step word problems. The numbers in these problems may be fractions, decimals, and percents. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Comparison of Ratios in Decimal Form

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Write and compare ratios in decimal form
Unit Plan
CK-12 Foundation

Ck 12: Arithmetic: Decimal Addition

For Students 8th
[Free Registration/Login may be required to access all resource tools.] Add and subtract decimals with and without rounding
Activity
Math Is Fun

Math Is Fun: Percentages

For Students 3rd - 8th
The learning activity investigates percentages. Topics examined are converting percents to decimals, converting percents to fractions, and the percentage difference. Links to additional resources and a percentage calculator are included.

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