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

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

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Decimal Names of Points on a Number Line

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Up to three zooms into the number line.
The point can be dragged or assigned.
The start of the interval can be adjusted.
The point can be stepped by a relevant unit left or right, for predicting the 'next' number on the line at that scale.
Applet
Notes


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Number Line Readings

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