TAP and follow the link to the website that allows you to learn about various geometric solids and their properties. https://www.nctm.org/Classroom-Resources/Illuminations/Interactives/Geometric-Solids/ You can manipulate and colour each shape to explore the number of faces, edges, and vertices, and you can also use this tool to investigate the following question: Use the drop-down menu to choose from the possible solids: Tetrahedron, Cube, Octahedron, Dodecahedron, Icosahedron, or you can even make "My Own Net." Manipulate set shapes in the workspace. Click and drag the shape to move. Then TAP and answer this question For any polyhedron, what is the relationship between the number of faces, vertices, and edges?