https://www.pyneberry.com/zone-of-proximal-development-zpd-was-introduced-by-russian-psychologist-lev-vygotsky-who-was-known-for-his-sociocultural-theory-vygotsky-was-born/ Wed, 08 Sep 2021 08:54:32 +0000 hourly 1 https://wordpress.org/?v=5.8.11