Teachers who misjudge the Zone of Proximal Development risk undermining student learning through over-scaffolding or under-scaffolding. Over-scaffolding occurs when teachers provide excessive support, fostering learned helplessness and reducing autonomy, while under-scaffolding leaves students struggling with cognitive overload and feelings of incompetence. Vygotsky’s ZPD misjudgment over-scaffolding under-scaffolding emphasizes the delicate balance between what learners can do independently and what they achieve...