Final answer:
The non-spatial thinking example is A magazine article describing how to make a bookshelf, as it involves sequential instructions without the need for spatial visualization.
Step-by-step explanation:
The example of non-spatial thinking among the options provided is A. A magazine article describing how to make a bookshelf. Non-spatial thinking does not involve understanding the location or physical layout of objects in space. Rather, it relates to thinking about concepts, sequences, or instructions that do not necessarily require visualizing a physical space. This contrasts with the other options, which involve spatial understanding, such as a diagram of a dollhouse, a mental map to navigate from one place to another, or an actual map showing the location of homes.