Welcome to Structured Word Inquiry.com
We are a website solely dedicated to all things Structured Word Inquiry (SWI). Our mission is to empower learners of all ages through the study, implementation, and support of SWI. We believe that every student—whether they face learning challenges or not—deserves access to the transformative power of literacy that SWI can bring.
We are committed to ensuring that parents, teachers, tutors, speech-language pathologists, and other professionals have the tools and knowledge they need to effectively support their students. By providing these essential resources, we aim to foster a deeper understanding of language and unlock each learner’s potential.
What is SWI?
Structured Word Inquiry (SWI) is an integrated linguistic-based approach to literacy instruction that focuses on understanding the meaningful structure of words by first analyzing their morphology, etymology, and and lastly their phonology.
Unlike phonics-based methods, which emphasize decoding words based on sound-letter correspondences, SWI teaches learners to investigate words by looking at their root, base, prefixes, suffixes, and origins before analyzing the sound-letter correspondences (grapheme-phoneme correspondence.)
Where did SWI come from?
Dr. Peter Bowers created the framework of “Structured Word Inquiry” (SWI) while pursuing his Ph.D. at Queen’s University (Canada). Inspired by a 2001 Real Spelling presentation, he introduced SWI to a Grade 4/5 intervention, resulting in generative vocabulary learning (Bowers & Kirby, 2010). This approach demonstrated how spelling, pronunciation, and meaning interrelate by using word matrices, word sums, and phoneme diagrams.
He and John Kirby introduced the “Morphology as a Binding Agent Theory,” emphasizing morphology’s role in uniting reading’s “triangle” of spelling, pronunciation, and meaning. Meta-analyses, including Bowers, Kirby, and Deacon (2010), showed that younger and less able learners benefit the most from morphological instruction– contrary to long-held predictions.
Currently, Dr. Bowers is a part of the Structured Word Inquiry Research Vanguard (SWIRV) which has presented at numerous conferences and is presently conducting its first SWI research project. Recently, Dr. Bowers collaborated with Marie Foley to produce a video titled “The Nested Combinatorial Structure of English Spelling: Binding the Pronunciation, Spelling, and Meaning of Words.”
The Core Elements of SWI
SWI emphasizes how words are constructed using meaningful units called morphemes (e.g., prefixes, free or bound bases, suffixes, connecting vowel letters). For example, in the word unkind, un- is a prefix meaning ‘not,’ and kind is the base. Children learn that spelling-meaning correspondence is just as important as grapheme-phoneme correspondence.
Words are often explored through their historical roots and origins, helping students understand why words are spelled the way they are. For example, the ph- spelling in phone can be explained through its Greek origin.
Although phonology is part of SWI, it is presented in the context of morphology and etymology because they govern phonology. Students learn about the relationship between graphemes and phonemes (sounds and spellings), but not first and not in isolation—instead it’s analyzed but only after the meaning and structure is understood.
How Does SWI Work
A core tenet of SWI is utilizing principals of the scientific method to study the meaning and structure of words. How is this done? Whether student or teacher led, when a new word is encountered the student is encouraged to come up with a hypothesis about how they think the word is spelled. Next, we test the hypothesis through a process of question and discovery using The Four Questions.
The Four Questions
Meaning Comes First: SWI starts with the meaning of words to ensure it is in the child’s oral language before exploring how spelling supports that meaning, rather than treating spelling as arbitrary. In other words, spelling is not just sounds written down.
Exploring the structure: Here, we break the word into its meaningful parts (morphemes), including the base and any prefixes or suffixes. This reveals how words are structured through morphology.
Exploring Connections: Students learn to find word families based on meaning and structure rather than just sound. For example, the words sign and signature belong to the same family, despite the difference in pronunciation of the < g > .
Exploring the phonemes: Lastly we analyze how the phonemes in the word relate to graphemes, the grapheme/phoneme correspondence. NOTE: SWI treats this as a secondary step, that is always governed by the morphological and etymological structure. In SWI we never lead with this step
- Order of importance: SWI prioritizes meaning and structure, while phonics often focuses on sounds and rules for grapheme-phoneme correspondence first and in isolation.
- Cognitive flexibility: SWI builds deeper understanding, making spelling more logical and accessible to dyslexic learners by showing consistency in meaning and spelling, even when sounds change.
Example of SWI in Action
Let’s consider the word “musician” using the Four Questions to break it down.
Definition: A musician is a person who performs music.
Morphemes: muse + ic + ian <muse> is a free base <-ic> and <-ian> are the suffixes.
Etymology: Music comes from the Greek root ‘mousike’, associated with the nine Muses of Greek mythology. This root passed through Latin as ‘musica’ before entering English.
Related Words: Music, musical, musically, and museum – These words can be put into a word matrix and can be analyzed with word sums.
Grapheme/ Phoneme Correspondence: Here we analyze the jobs the letters are doing or what sounds the graphemes make.
What are the benefits of the SWI approach?

Supports Dyslexic Learners: By focusing on meaning and structure before analyzing the sounds, SWI helps students who struggle with phonics-based methods to build literacy through more meaningful connections and giving them a scaffold on which to hang the phonology ( the most abstract and difficult piece).

Orthographic Consistency: English spelling is treated as a logical system that reflects both meaning and history, making sense when analyzed through SWI’s framework. In other words, English isn’t crazy, it’s predictitable and follows patterns. Pronunciation varies but spelling is consistent. This builds confidence in learners that “yes” they can make sense of word spellings!

Encourages Cognitive Flexibility: SWI helps learners understand the dynamic nature of language, promoting critical thinking and pattern recognition. In other words, many graphemes can spell more than one phoneme, words can have more than one meaning and use. For children who struggle with coming up with different examples of things, this is essential practice to expand their mental flexibility.

Reduces the Need for Drill-Based Methods: Since SWI focuses on meaningful exploration, it avoids repetitive phonics drills that many students (especially those with language-based learning disorders) find ineffective.
