Introduction, Sources & Citations
Introduction
The period from 18 to 24 months represents one of the most emotionally intense and socially dynamic phases of early childhood development. Often referred to as the height of the “terrible twos,” this period is characterized by significant emotional growth, the emergence of complex social awareness, and the development of early emotional regulation skills. Rather than viewing this time as simply challenging, understanding the remarkable developmental achievements occurring can help parents and caregivers provide appropriate support during this crucial period.
During these six months, toddlers experience an explosion in emotional complexity while simultaneously developing the foundational skills needed to manage these intense feelings. Their social awareness expands dramatically, leading to new forms of interaction, conflict, and cooperation. This chapter provides comprehensive, evidence-based guidance for understanding and supporting development during this transformative time.
The content is organized into two key developmental phases: 18-21 months (Emotional Complexity and Social Awareness) and 21-24 months (Regulation Skills and Social Competence), reflecting the natural progression from emotional emergence to beginning regulation and from social awareness to early social skills.
References
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