Structured Word Inquiry (Bowers and Kirby, 2010) is a way of working with language to show that spelling makes sense. In fact, our spelling system is so logical and well-ordered that it can be investigated and understood through scientific inquiry.
We all know that “sound it out” only works part of the time. This means that it is not a reliable method for determining the spelling of a word. Instead, when using SWI, we start by asking, “What does the word mean?”