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Applet for constructing antiderivative graph
User can draw a function $f(x)$ using a nice smoothing algorithm, then a simple slide interaction draws a rectangle whose height is given by the average value of the function from $a$ to $b$
Worksheets are provided with sample questions on investigating the Fundamental Theorem of Calculus.
Exploraton of The Fundamental Theorem (both parts) using worked examples in applets.

A complete lesson on sinusoidal waves and acoustics. An embedded spreadsheet provides an interactive resource for phase shifts; otherwise, this is a static text-based webpage.

A thorough review of high school algebra presented as a series of HTML pages with some Flash applets and JavaScript modules embedded.

This graphic presentation illustrates the relationship between the shape of a function and the sign of the first derivative.

Wolfram's demo for the product rule, with dropdown menus for the functions. Users can download the free Mathematica Player to play a live version of the demo.
Java applet allows the user to visualize the washer method for finding the volume of a solid formed by revolving a specific region about the $x$-axis.

Three adjacent windows display graphs of (1) a function $f$  and its derivative, (2) a function $g$ and its derivative, and (3) a function $h$ and its derivative.