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Hannes von Allwörden
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Aufgabe: Parkettierungen erstellen un…
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Penrose
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Wie funktioniert Dein Auge?
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Wie funktioniert ein Fotoapparat?
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Eigenschaften besonderer Vielecke
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Aufgabengenerator
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Ein Dokument präsentieren
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Bleiglasfenster
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