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A tutorial that models fractions.

Java applet that implements Integer bars or Cuisenaire Rods to visualize and learn fractions and much more.

"Use the display and the slider to see how shapes up made up from their nets." Nice visual showing one net for each solid 'fold' up to make it.

Weighted fraction bars can be used to help students visualize equivalency and sums.

This tool enables K-6 students to build visual models of word problems. There are hundreds of built-in math problems covering thirty-six different categories. Videos explain how to model each problem type. The full screen feature makes this application compatible with interactive white boards.

Chris Jordan's photo series, Running the Numbers: An American Self-Portrait, is mind blowing in so many ways.

Innovative and truly interactive resources for learning math and science.

Build a fraction using an area model to match the fraction in symbolic form.

"Each animation is embedded in a web page that elaborates on what you will see, but some web-browsers may not like those embeddings; for that reason I've provided direct links to each of those embedded animations on the web page in which it's supposed to appear. If clicking on a link from this page opens a page that fails to display a movie, click on the link to that movie."

Create and Collaborate on Online Diagrams