After about a year of life, when a child consistently -- and independently --gets from point A to B on her own two feet, she's made the initial transition to toddler. Learn about the physical characteristics of toddlers, and how gross and fine motor skills are developed. Understand the milestones children achieve at this age by observing toddlers in learning centers and at home. Hear from the experts about nutrition, sleep, toilet training, and developmental differences among toddlers.