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Activity
University of Vienna (Austria)

Maths Online

For Students 9th - 10th Standards
This site consists of interactive lessons on a multitude of math topics including sets, drawing plane and coordinate system, variables, equations, and functions. You may also view this Vienna University site in German.
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Interactive
University of Vienna (Austria)

Maths Online: Drawing Plane and Coordinate System

For Students 9th - 10th Standards
Interact with these Applets on the Cartesian coordinates, the Coordinate system, the Polar coordinates, and the Oblique coordinates.