This applet helps school going children learn and practice basic arithmetic operations like Addition, Subtraction, Multiplication and Division. LCM and HCF can also be practiced. At the end of the practice session (which lasts as long as you wish), you can see the score i.e. the number of problems correctly solved as well as the number of problems the child could not solve. Unless the child gets a problem right, the applet does not advance to another problem.
It is a great tool for teaching arithmetic.
Note: If the applet is not visible properly, just bring it in completely in view by scrolling, minimize and then restore the browser window
The various parameters of the applet also allow you to specify a lower and upper bound for the colour values (so that they will always remain within a certain range) and to specify a seed for the random number generator. By giving the same seed (and start colour) to two or more bars, you can ensure that they remain synchronized. The two lower bars on this page are synchronized.
Moon-Applet always shows the actual phase of the moon and generates an (optional and editable) text-message, including the number of days until full moon. Absolutely necessary for astrologers, moonstrucks, lunatics, werewolves and other creatures of the night ;-) Colors, text, additional gifs and size are free adjustable. more examples ...
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