This document contains a comparative organizer and design plan about Piaget and Vygotsky's theories of child development and learning. The comparative organizer outlines 4 rounds of comparison between Piaget and Vygotsky's views on topics like the role of internal/social knowledge, the learning environment, the relationship between learning and development, and the link between cognition and language. The design plan proposes using a prologue and main story format to illustrate Piaget and Vygotsky's theories, with the main story focusing on Vygotsky and employing his concepts of modeling, scaffolding, and fading within an authentic activity setting.