When Science of Reading Policy Meets Classroom Reality: The Nonsense Word Problem

A central feature of many Science of Reading (SoR)-aligned curricula is the use of nonsense words in early literacy assessment to measure a student's ability to decode unfamiliar words using knowledge of letter-sound correspondences. However, the research base for using nonsense words as an instructional tool is much weaker and more contested. Through two narratives, we illustrate how the implementation of SoR instruction with nonsense words can be particularly problematic. We argue that effective literacy instruction demands what we call pedagogical clarity, the ability to integrate pedagogical practices with deep understanding of individual learners, their cultural and linguistic resources, and their developmental trajectories.