Arnd Ludwig

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    Arnd Ludwig copied Polar graph (geogebra) #1 to Arnd's copy of Polar graph (geogebra) #1 6 years, 3 months ago

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    Arnd Ludwig copied Numbas demo: Create an equilateral triangle in GeoGebra to Arnd's copy of: Create an equilateral triangle in GeoGebra 6 years, 3 months ago

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    Arnd Ludwig copied Numbas demo: Create an equilateral triangle in GeoGebra to Arnd's copy of: Create an equilateral triangle in GeoGebra 6 years, 3 months ago

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    Arnd Ludwig copied emma's copy of Simplifying Numerical Fractions to Arnd's copy of emma's copy of Simplifying Numerical Fractions 6 years, 3 months ago