This teaching module uses Maple Maplets to illustrate several different methods of estimating the area of the unit circle.

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This teaching module explores the time and distance of a bouncing ball and leads to a study of the geometric series.

This article describes an authoring tool that translates a simple, TeX-like input syntax into Content MathML. The MathML can then be copied and pasted into web pages.

In this article, we explain what we mean by an "interactive mathematics text"; we describe its goals, contents, and pedagogical methods; and we explain the thinking that went into in writing our text, Visual Linear Algebra.

In this article we present a collaborative environment of open source tools around the dynamic mathematics software GeoGebra that gives educators the freedom to create new and modify existing materials in an online community.

This article describes ZMap, an applet that helps students visualize the graphs of complex-valued functions.

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

This article illustrates the use of calculus, differential equations, and statistics in the analysis of enzyme kinetics.

In this article we examine several specific geometric phenomena in Euclidean space and calculate the asymptotics as the dimension gets large.

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.