Interactive
National Council of Teachers of Mathematics

Nctm: Illuminations: Fraction and Percent Tool

For Students 9th - 10th Standards
This tool allows you to explore fractions, decimals and percents by creating fractions with denominators up to 100.
Lesson Plan
University of Texas

Inside Mathematics: Percent Cards [Pdf]

For Teachers 5th - 7th Standards
This task challenges students to demonstrate an understanding of the relationship between fractions, decimals and percents.
Lesson Plan
University of Texas

Inisde Mathematics: Sewing [Pdf]

For Teachers 5th - 7th Standards
This task challenges students to demonstrate understanding of the relationships between fractions, decimals and percents.
Interactive
Other

Visnos: Fraction Wall

For Students Pre-K - 1st Standards
Interactive fraction bars allow practice with mixed and equivalent fractions, decimals, and percents. Use Safari and/or Chrome browser.
Activity
Help Algebra

Help algebra.com: Percents

For Students 9th - 10th
Converting percents to and from decimals and fractions is demonstrated in detailed examples. Once the concept is understood, you can use it to solve equations that contain percents.