Article Abstract 2

The Zone of Proximal Development (ZPD), originally theorized by Lev Vygotsky as the conceptual space between what a learner can accomplish independently and what they can achieve under guided support, has remained one of the most enduring constructs in educational psychology. However, Vygotsky formulated this theory within the context of face-to-face, dyadic interactions in structured learning environments. The proliferation of Social Networking Sites (SNS) — including WhatsApp, Instagram, YouTube, and Facebook — among adolescent learners in the contemporary era necessitates a fundamental rethinking of how peer interaction facilitates cognitive and academic development. This conceptual paper argues that SNS-based peer interaction constitutes a digitally extended ZPD, wherein learners co-construct knowledge, scaffold academic understanding, and regulate their learning through asynchronous and synchronous peer exchanges on digital platforms. Drawing on Vygotsky\'s sociocultural theory, Bandura\'s Social Cognitive Theory, and contemporary digital learning scholarship, this paper theorizes the mechanisms through which SNS-based peer interaction replicates, extends, and complicates the classical ZPD framework. The paper is grounded in the Indian higher secondary school context, with specific relevance to students preparing under WBCHSE and CBSE boards. Implications for pedagogy, curriculum design, and future research directions are discussed.
Keywords: Zone of Proximal Development, Social Networking Sites, peer interaction, sociocultural theory, personalized learning, digital scaffolding, higher secondary education