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This ESTEEM module in the Biometrics Category is a downloadable Windows program that allows the construction, analysis, and simulation of models in a simple spreadsheet format. The only programming required is the ability to construct formulas in Excel.
This paper describes a Flash-based OSSLET that we have used at the United States Military Academy with first year calculus students as a vehicle for motivating vectors, matrices, and linear and affine transformations.

A Developers' Area article on the construction and collection of quality mathlets.

This activity illustrates the process of random number generation and simulation. It is part of the Statistics Online Computational Resource (SOCR).
A mathematical model for the number of subscribers to two competing cable TV companies is presented. An applet is included, allowing the user to experiment with the model.
A mathlet that allows the user to input a sequence of 0's and 1's of length 20 and then tests the sequence for randomness using three different tests.

This article explores how mathematical techniques, digital images, and dynamic geometry software can be used to analyze a real-world situation originating from poultry science. The topic is mathematical modeling of the shape of an egg, where the underlying question is: What is the volume and surface area of a hen's egg?"

An interactive module to study numerical and graphical solutions of differential equations in first-semester calculus.
This utility uses the free Flash player plug-in resident in most browsers to allow the user to plot 3D curves and surfaces on a customized scale and dynamically rotate the picture.

A tribute to one of our authors, who died suddenly and unexpectedly while his second JOMA contribution was in preparation.