Math Java Applets  
   About 15 applets covering a number of math problems and principles.
   http://www.mste.uiuc.edu/java/

Manipula Math with Java  
   Over 200 applets for middle school students, high school students, college students, and all who are interested in mathematics. Interactive programs and a lot of animation that helps with understanding mathematical ideas.
   http://www.ies.co.jp/math/java/index.html

Java Demos for Probability and Statistics  
   College professor's applets.
   http://www.math.csusb.edu/faculty/stanton/m262/

Chaos and Fractals Applets  
   Several java applets for use in exploring the topics of chaos and fractals.
   http://math.bu.edu/DYSYS/applets/index.html

Experimental Math Applets  
   Some applets covering Besicovitch sets, conformal compactifaction, honeycombs, exponent calculator, the complex plane, elementary complex maps, Möbius transforms, multi-valued functions, the complex derivative, the complex integral, Taylor and Laurent ex
   http://www.math.ucla.edu/~tao/java/

Euclid's Elements, An Introduction  
   Includes the entire 13 books on plane geometry, geometric and abstract algebra, number theory, incommensurables, and solid geometry. Uses java applets to illustrate the principles.
   http://aleph0.clarku.edu/~djoyce/java/elements/elements.html

Spirograph Applet  
   Makes a spirograph, just like the kid toy.
   http://www.wordsmith.org/~anu/java/spirograph.html

TenBlocks and IntegerZone  
   TenBlocks turns the times tables into a series of puzzles. IntegerZone lets users explore aspects of arithmetic and number theory using the integers themselves as the interface.
   http://www.1729.com/applets/

Graph It ! - The power of Javascript  
   This applet uses dynamically created pictures to draw the graph of your mathematical function. It is a good example of the possibilities of Javascript.
   http://www.geocities.com/SiliconValley/Heights/1700/graphit.htm

Graph Explorer  
   A Java applet for graphing functions, with smooth zooming and panning across graphs, and variable parameters which can be used for animation.
   http://www.langara.bc.ca/mathstats/resource/GraphExplorer/

HKCEE Mathematics  
   This web page contains 7 Java Applets for exploring Geometry and Trigonometry.
   http://chuwm.tripod.com/maths.html

Java Applets for Visualization of Statistical Concepts  
   These applets are designed for the purpose of computer-aided education in statistic courses. The intent of these applets is to help students learn some abstract statistics concepts easier than before. The approach taken here is based upon visualization an
   http://www.kuleuven.ac.be/ucs/java/index.htm

xFunctions  
   The xFunctions applet covers several aspects of calculus and pre-calculus mathematics, including graphs, parametric curves, derivatives, Riemann sums, and integral curves.
   http://math.hws.edu/xFunctions/

Online Tutor  
   on-line math tutor and science tutor for school age children - Place values to Probability, geometry, ratios, percentages, fractions and measurements, solar system, weather and human body
   http://www.infomath.com/html/online-tutor.asp

Famous Curves  
   About 60 famous mathematical graphs or curves drawn by applets.
   http://www-groups.dcs.st-and.ac.uk/~history/Java/index.html

The Mandelbrot Set  
   Examine and tweak Mandelbrot Set fractal images. [Displaying the Mandelbrot set requires a great deal of computation. The user is best off with a fast machine, drawing small pictures.]
   http://www.math.utah.edu/%7Ealfeld/math/mandelbrot/mandelbrot.html

Interactive Math Activities  
   More than 320 Java applets help illustrate topics in arithmetic, algebra, geometry, mathmagic, optical illusions, probability, calculus, combinatorics
   http://www.cut-the-knot.com/Curriculum/

WisWeb (subsite of Freudenthal Institute)  
   WisWeb is the website of the Freudenthal Institute for secondary education (students of 12 to 18 years old). The main focus of the site are applets; small computer programs that run over the internet.
   http://www.fi.uu.nl/wisweb/welcome_en.html

MathinSite - Math Insight from a Math Web Site  
   Mathematical Java applets with accompanying theory and tutorial sheets aimed mainly at undergraduate engineering students. Some applets also useful for K-12.
   http://mathinsite.bmth.ac.uk

Graphical Ruler and Compass Editor (GRACE)  
   An interactive ruler and compass construction editor for use in teaching the fundamental concepts of geometry to high school students. Java.
   http://www.cs.rice.edu/~jwarren/grace/

Interactive Mathematics Exploration  
   Interactive Java applets.
   http://www.analyzemath.com/