Teachers are beginning to use augmented reality in the classroom to further allow students to simulate and explore 3D models, whether they are of the solar system, the skull, or an aquarium. Some great resources for this purpose include the Merge Cube and the CoSpaces app.
The Merge Cube is an inexpensive foam block that can be purchased on Amazon. I also found this printable one here. I have one as well so if you are interested in using it, just let me know.
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For further reading, check out this article with apps that can be used with the Merge Cube for AR and VR.