The toddler years are a time when children are building skills in all areas. They remember what they learn and share it with others. They understand things more deeply, make choices, and engage with others in new ways. The changes in their physical, cognitive, and social-emotional development help them to build new skills that prepare them for school and later learning.

During the toddler years, children begin to use their large and small muscles in new ways. They like to go fast and practice running, jumping, kicking, and throwing. Although unsteady at first, with practice, many children begin to climb stairs by the time they reach age 2. By 2-and-a-half, most toddlers have generally mastered stairs and are ready to begin climbing more challenging playground equipment. But as their mobility increases, so do the safety hazards. Caregivers need to supervise their activity closely, especially when toddlers are climbing. As for children of all ages, playground surfacing in outdoor play areas must meet regulations so that it cushions toddlers' many falls. Safety gates are another important piece of safety equipment for children in this age group.