This article emphasizes the importance of understanding local contexts to provide appropriate education for teachers about literacy instruction. The author reviews general problems that follow from extrapolating from unrepresentative research samples and the errors and deficit conceptions that follow from assuming that all cognition takes place…

In this commentary, the author reconceives Vygotsky's zone of proximal development (ZPD), particularly its conflation with the notion of instructional scaffolding. The author reviews Vygotsky's description of the ZPD and how it has come to be misinterpreted; summarizes Wood, Bruner, and Ross's introduction of the scaffolding metaphor and how it…