National Council of Teachers of Mathematics
Nctm: Illuminations: Fraction and Percent Tool
This tool allows you to explore fractions, decimals and percents by creating fractions with denominators up to 100.
University of Texas
Inside Mathematics: Percent Cards [Pdf]
This task challenges young scholars to demonstrate an understanding of the relationship between fractions, decimals and percents.
University of Texas
Inisde Mathematics: Sewing [Pdf]
This task challenges young scholars to demonstrate understanding of the relationships between fractions, decimals and percents.
Other
The Actuarial Foundation: Math Academy: Dining Out [Pdf]
Learners will understand and apply concepts of fractions, decimals and percents to count money, make change, figure tax/tips and participate in other restaurant-related activities.