I am just a parent of two K-8 children so not entirely up to speed on the latest theory and practice of ZPD. But when I first read about this before my first wa

I am just a parent of two K-8 children so not entirely up to speed on the latest theory and practice of ZPD. But when I first read about this before my first was born I understood ZPD to be "empathetic tutoring" which seems increasingly difficult to execute correctly when student:teacher ratios exceed 4:1, and ideally 1-1 for maximum benefit. ZPD works, but nobody has been able to implement this at-scale, let alone in the K-8 public school system.