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Continue to ChatAn Open Source Virtual Manipulative For Teaching 3 Dimensional Geometric Objects: Google Sketchup - https://avesis.yildiz.edu.tr/yayin/69cc4e8c-ce06-4e6a-bb4c-ef7da8fdf2ea/an-open-source-virtual-manipulative-for-teaching-3-dimensional-geometric-objects-google-sketchup