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This article examines the dynamic geometry package GeoGebra from the point of view of Euclidean Constructions.

A review of Tom Leathrum's "Mathlets: Java Applets for Math Explorations"

Users toss a virtual coin or die to investigate the law of averages. The outcomes of multiple experiments (consisting of 10000 tosses each) can be graphed on the same plot to facilitate visualization of trends. An activity is provided to facilitate thinking about the law of averages with the applet.

Fractal Fern Generator

This ESTEEM module in the Biometrics category creates graphical images of a certain type of fractals (Iterated Function Systems) that can be constructed by linear transformations.

Customizable Flash-Based Quiz

This article provides Flash files that will deliver a quiz made up of multiple choice and multiple answer questions that the instructor can create in a simple text file. No knowledge for Flash or programming required!

The SIR Model for Spread of Disease

This module develop the SIR Model for the spread of an infectious disease, including the concepts of contact number and herd immunity.

Expectation Maximization and Mixture Modeling Activity

This is a pair of (1D and 2D) SOCR Activities that demonstrate random sampling and fitting of mixtures of Gaussians to model complex data (e.g., multimodal).

Java Math Pad

This applet, designed as a limited computer algebra system, allows the user to evaluate mathematical expressions, including those of interest in a calculus class.

The Consumer Price Index and Inflation

A module to explore Consumer Price Index data by fitting an exponential curve to it in Excel

Animated Sequences

A mathlet that allows you to visualize a sequence (or series) of real functions.