What Is Insertion
Insertion is a reading error where a reader adds a word that doesn't appear in the text. For example, reading "The cat is sleeping" when the text says "The cat sleeping" or adding "very" to make "The very cat is sleeping."
This error pattern differs fundamentally from substitution (replacing one word for another) and omission (leaving words out). Insertions reveal something specific about how a reader is processing text, whether they're guessing based on syntax patterns, relying on automaticity without tracking letters, or compensating for comprehension gaps.
Why Insertions Matter
Insertion frequency tells you something about a reader's decoding versus fluency issues. A reader who consistently inserts words may be compensating for weak phonics skills by filling gaps with contextually logical words. This is common in early readers (ages 5-7) as they learn to track left-to-right and match sounds to letters, and it typically decreases with explicit phonics instruction.
For struggling readers and those with dyslexia, insertions can indicate over-reliance on context clues at the expense of accurate word recognition. The Orton-Gillingham approach, which emphasizes sequential, multi-sensory phonics instruction, specifically targets this pattern by strengthening the visual-auditory-kinesthetic connection to letter sequences.
Tracking insertions through miscue analysis helps reading specialists distinguish between fluency issues (insertions that don't change meaning much) and comprehension problems (insertions that alter intended meaning). This distinction shapes IEP goals and intervention selection.
Practical Implications
- Assessment: During reading assessment, count insertions separately from omissions and substitutions. They're coded differently in running records and diagnostic reading inventories because they suggest different underlying issues.
- Phonics connection: Readers inserting words frequently often show gaps in decoding specific letter patterns. They may read around difficult words rather than attacking them systematically.
- Grade-level patterns: Insertions are normal in kindergarten and first grade (reading levels A-C) but should decline sharply by second grade. Persistence beyond age 7-8 warrants intervention.
- IEP planning: If insertions account for more than 10% of miscues, consider goals targeting sound-symbol correspondence and left-to-right tracking, not just fluency.
Common Questions
- Should I correct insertions immediately during reading? Not during initial reading instruction. Let the student finish the sentence or page, then use it as a teaching moment. Point to the text and ask, "Does that word appear here?" This builds self-monitoring without breaking comprehension.
- Why does my child insert the same words repeatedly? It's usually a favorite filler word ("like," "the," "and") that feels safe. Explicitly teach that some words are worth checking every time, using highlighters or finger-tracking to catch these patterns.
- How do insertions affect reading level placement? Reading level assessments (Fountas and Pinnell, Lexile) typically allow a 1-2% error rate. Frequent insertions can drop a student a full level, so it's important to address them before advancing.