This article explains the importance of playing in childhood, especially in early years, with young kids. Vigotsky (1984), Piaget (1973), Winnicott (1971) and Kishimoto (2010), are the basis of this article. Play is a very important ally in teacher’s work. This practice is helpful for social and motor development skills, be in nursery or school. Handle a toy or play some game who needs effort, like crawl to touch the toy or raise the arms indicates motor efforts and improvement in his motor skills. Besides that it’s necessary focus when we choose the toy or game. What we need with this game? What ability we want develop? Planning is very important at this phase: is suitable for the kid’s age and their capacity? The kid have the minimum to handle the toy? Some issues need to be consider when we planning tis kind of activity: the size (because the kid can swallow pieces), if is toxic and have string who can asphyxiate the children. The kid will be progress passing by external object perception, possessiveness, function discover, rules and social interaction.