This series of articles tracks children's growth and development during infancy, toddlerhood, and the preschool years. During these years children grow at a pace unequalled at any other time in their lives. In addition to describing the milestones in the development of abilities in the areas of language, motor, emotional, social, and cognitive areas, common challenges of parenting are discussed.
It's important to keep in mind that milestones are approximate times when certain abilities are observable. There's a wide range of what's considered 'normal,' and every child explores and adjusts to the world at his or her own pace.