fraction sites

Explore Fractions Online!
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NLVM's Fractions Equivalent Applet
The computer selects a fraction and asks you to find an equivalent fraction as you use controls to place another layer of fractional pieces on top of the first fraction.
http://nlvm.usu.edu/en/nav/frames_asid_105_g_2_t_1.html

Math Playground's Fraction Bars
Compare up to four fractions of your choice by splitting each bar into parts and selecting the number of parts to color.
http://mathplayground.com/Fraction_bars.html

Illuminations' Equivalent Fractions
Find two equivalent fractions for a given fraction by dividing two other shapes into parts and coloring parts while arrows point to their values on a number line.
http://illuminations.nctm.org/ActivityDetail.aspx?ID=80

Fraction Bars Applet (Virtual Fractions)
This applet lets you compare up to five fractions, decimals, and/or percents, but it's a bit clumsy to set up.
http://www.arcytech.org/java/fractions/fractions.html

lesson to accompany the Virtual Fractions Applet
http://www.frontiernet.net/~mmankus/talks/bars/fbar1.htm

Math Playground's Equivalent Fractions
Find a fraction between two given fractions by using virtual fraction bars to visualize equivalent fractions with a common denominator.
http://mathplayground.com/visual_fractions.html
Illuminations' Fraction Game
Try to move your markers across fraction tracks using the fewest number of fraction cards.
http://illuminations.nctm.org/ActivityDetail.aspx?ID=18

NCTM Fraction Model Applet
(representing fractions, decimals, and percents):
http://my.nctm.org/eresources/repository/
2071/applet/FractionPie/index.html

Fractional Hi-Lo
Practice comparing fractions as you try to guess the mystery fraction and find out if each guess is too high or low.
http://www.theproblemsite.com/games/hilo.asp
Web Math:

What's a Fraction? - Enter a fraction and the page displays it in a fraction pie.
http://webmath.com/k8if.html
Comparing Fractions - Enter two fractions and the site shows how to compare them.
http://webmath.com/k8cf.html

Old Egyptian Math Cats Fractions
Solve fraction puzzles the way the Egyptians did - using only numerators of 1.
http://www.mathcats.com/explore/oldegyptianfractions.html

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