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Warning: All Applets are in Cinderella, dynamic geometry and physics simulation software, which can be obtained free from Cinderella.de.
.html files may be able to be opened in a java-enabled browser such as Safari or Firefox |
See also Structured Variation Grids (SVGs)
Fraction Displays
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Displaying Fractions arithmetic as operators on rectangles
The applet has two modes: Choosing cells and displaying the corresponding fraction operator Choosing fraction operators and seeing them instantiated as actions on a grid. The arithmetic can be multiplication, addition or subtraction. Applet Notes on Applet use |
Decimal Names of Points on a Number Line
Number Line Readings
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The ends of the segment are adjustable
The precision of detail can be adjusted The point can be dragged The decimal name can be displayed The fraction name (mixed or vulgar) can be displayed. Metric Applet Imperial Applet Notes |
Number Line Fractions: Addition & Subtraction
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The brown and red segments can be dragged along their number lines; the numerators and denominators can be chosen by using the arrows or by dragging the end of the segment.
The idea is to provide a number line based image of how adding and subtracting of fractions works, by finding a common measure. The applet has notes about its use. The original Cinderella-Based applet is included with a webarchive file that should work on any browser. Applet |
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