Software (or webapps) for teaching kids statistics or probability?

Question

I would like (in the distant future) to teach statistics to kids. For that matter, I'd be happy to know of software (obviously I am tending towards FOSS), or webapps, that are helpful in explaining statistical/probabilistic ideas to kids (or adults for that matter).

This can be used either by the instructor, the kids, or both.

Suggested format of the answer: Software name, what it help teach, who should use it, link.

Answer 1

Videos and animations from Understanding Uncertainty website.

Answer 2

RcmdrPlugin.TeachingDemos: Rcmdr Teaching Demos Plug-In

Extending R with Rcmdr and give demos for probability and statistics ideas.

• Interactive: correlation and linear regression.
• Static: power of a test, confidence interval, central limit theorem.

Mostly for the teacher - less for the children

http://cran.r-project.org/web/packages/RcmdrPlugin.TeachingDemos/index.html

Answer 3

GGobi

Help teach interactive data visualization. Including - histograms, scatter plots (2d, 3d, multi-d), with brushing/linking etc.

Mostly for the teacher - less for the children (but still possible)

http://www.ggobi.org/

Answer 4

animation: A Gallery of Animations in Statistics and Utilities to Create Animations

An R package. Enables the teacher to create many animation that can be made into webapps.

Great for the teacher to create a children webapp.

http://cran.r-project.org/web/packages/animation/index.html

Examples: http://animation.yihui.name/