View the SILENT four minute video above and/or follow the text below... The video was made with Blender 2.5(?).
- Select the cube (right-click it)
- Scale the cube to double its width in the X direction (S, X, 2, Enter)
- Switch to Edit mode (press Tab or use the Mode menu)
- The whole cube should be selected. If not, select all by pressing A until the whole cube is selected.
- Subdivide all the selected faces by clicking the Subdivide button in the Toolbox at the left. Each face is split into four faces.
- Switch to edge select mode, as shown below left.