Teacher question: I’ve read what you’ve written about the instructional level. You claim that there is no such thing. Haven’t you ever heard of the “zone of proximal development (ZPD)?” Shanahan responds: I’ve heard of it, but if you think what I’ve written is contradictory to it, then I suspect you don’t really understand the ZPD construct or its relationship to this aspect of reading. Let’s start with the “instructional level” idea first. A century ago, it was common practice for reading teachers to place children in different reading books based on their abilities. For instance, one Wisconsin survey from 1918 shows that the majority ...
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