For preschool children, experimentation, along with play, is the leading type of activity. The child's perception of the world in this period of life is through feelings and sensations. Children are trusting and direct, easily included in joint practical activities with adults, with pleasure manipulate various objects. As practice shows, if a child at a younger age is not taught to explore actions, the ability to observe, then in the future he does not always show a stable interest in the activity, has a sense of fear when familiarizing with a new object.