Activity
The Math League

The Math League: Ratio

For Students 4th - 8th Standards
This site gives a definition of a ratio along with two word problems. Also shows the student how to compare ratios using fractions.
Handout
National Council of Teachers of Mathematics

The Math Forum: Ratios and Fractions

For Students 3rd - 8th Standards
A seventh-grade student is having trouble understanding ratios, fractions, and simplest form. Dr. Math to the rescue! Real-world, easy to grasp examples.
Unit Plan
Khan Academy

Khan Academy: Percent Word Problems

For Students 5th - 7th
Practice solving word problems involving percents. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Activity
National Council of Teachers of Mathematics

Nctm: Figure This: Vcr

For Students 3rd - 8th
This resource presents an interesting challenge for the serious mathematician with strong reasoning skills. Explore proportional reasoning, probabilities, fractions, and ratios in this challenge to figure out if you always get six hours...