Toddler development refers to the growth and changes that occur in children aged 1 to 3 years. During this stage, toddlers experience rapid physical, cognitive, and emotional growth. They learn to walk, talk, and explore their environment, which helps them develop important skills like problem-solving and social interaction. Language development is a key aspect of toddler growth, as children begin to expand their vocabulary and form simple sentences. Social skills also emerge as toddlers engage in play with peers, learning to share and take turns. Overall, this period is crucial for laying the foundation for future learning and relationships.