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An article on the use of technology to stimulate mathematical thinking even by the least likely students

A Biological ESTEEM module from the Ecology Category. This worksheet compares user-input growth data with predictions under linear, exponential, and logistic models of growth.
This mathlet simulates a predator-prey system of foxes and rabbits over time.

This gallery of images and animations shows many examples of how the POVray ray-tracing software can be used to display examples in three-dimensional geometry.

Osslets (open source, sharable mathlets) are free and flexible interactive components you can easily add to your Web pages. The collection includes ready-to-use curriculum units.
A preparatory module for problem-solving in physics and calculus that covers systems of units, dimensional analysis, significant figures, estimation, and orders of magnitude

Marden's Theorem concerns the relative positions of the roots of a cubic polynomial and those of its derivative. This article gives a proof of Marden's theorem, along with dynamic geometry animations and some of the history of the result.

This Math Flash Forum Sharing Area applet provides students with practice with polar coordinates and the radian measure of angles through a simple, interactive game.
A Developers' Area article about reuse and interoperability of mathematical tools.
These applets provide interactive student activities to make connections between the graphical and analytical interpretation of "completing the square" and writing the equation of a parabola in general and standard form.