As they develop and grow, children achieve certain developmental milestones in their daily activities and play. Children make developmental advances in language skills, physical skills, social and emotional skills, and cognitive skills. It is important to remember that every child is different. It is perfectly natural for even children from the same family to achieve different milestones at different times. However, the milestones help indicate how the child is developing over time. Typically developing children will reach many of the milestones at similar stages and times in their early years. These developmental stages help parents and early learning professionals recognize the types of activities and opportunities children need to continue healthy development.