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A Biological ESTEEM module in the Developmental Biology Category. This Excel workbook illustrates a number of allometric equations in animal growth.

A module that uses Riemann sums and other numerical methods to investigate of the area of a complex region, specifically, a map of Virginia

An article describing the WWW Interactive Mathematics Server (WIMS), designed for supporting intensive mathematics work via the Internet with server-side interactivity.

This interactive page allows readers to construct a Kuratowski 14-Set on the real line by selecting from among ten checkboxes, each representing a given set of real numbers.

This applet encourages students to use the mathematics of the motion of a projectile to choose angle and velocity necessary to hit a roving target. The source code is available from the link within the Sharing Area of the Flash Forum.
A suite of mathlets for interactive exploration of quadric surfaces

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

This mathlet simulates a predator-prey system of foxes and rabbits over time.
This dynamic Java applet developed with support from the NSF (Dynamic Visualization Tools for Multivariable Calculus, DUE-CCLI Grant #0736968)) allows the user to simultaneously graph multiple 3D surfaces, space curves, parametric surfaces, vector fields, contour plots, and more in a freely rotatable 3D plot. This tool is intended as a dynamic visualization and exploration environment for multivariable calculus. Use it to illustrate the geometric relationships of many of the concepts of multivariable calculus, including dot and cross products, velocity and acceleration vectors for motion in the plane and in space, the TNB-frame, the osculating circle and curvature, surfaces, contour plots and level surfaces, partial derivatives, gradient vectors and gradient fields, Lagrange multiplier optimization, double integrals as volume, defining the limits of integration for double and triple integrals, parametric surfaces, vector fields, line integrals, and more. See the corresponding web page for documentation and a list of guided explorations developed for students to use with this exploration applet.
This ESTEEM module in the Biometrics Category leads the user through several different methodologies for applying Bayesian probabilities to real life examples and problems.