www.aaamath.com/fra.html All About Fractions from AAAMath INTERACTVE

http://www.mnemosyne.cc/MathMovie2.html 4 Short Movies on Dividing Fractions from Mnemosyne. INTERACTIVE

www.aplusmath.com/flashcards/fractions-mult.html Flashcard Fraction Problems from APlusMath INTERACTIVE

http://www.jamit.com.au/welcome.html Jamit Fractions (3-8) INTERACTIVE.  This site has Internet base activities, games and lesson plans. 

www.eduplace.com/math/mathsteps/3/b/index.html Math Steps. INTERACTIVE  Developing the concept of fractions addition.

www.arcytech.org/java/patterns Pattern Blocks:  Exploring Fractions with Shapes.  Hands-on manipulatives to learn the basic concepts of fractions, addition and subtraction of fractions, and more... 

http://teachers.net/lessons/posts/262.html Teaching fractions & ratios with M&Ms

http://visualfractions.com   Visual Fractions (4-8). INTERACTIVE This is a collection of activities that use pie charts, number lines, and other graphics to illustrate fraction operations.