In the first dawn of life, when memory and imagination are not yet functional, the child notices only that which affects his senses, and the experience of his senses is the raw material of ideas.Let, therefore, put the things he sees in a proper order, and the memory will someday furnish the material for his understanding in the same order.However, since he can only be aware of his feelings, it is enough at first to make him feel clearly the relationship between these feelings and the things that cause them.He wants to touch and fiddle with everything, and don't stop such actions. The learning these actions have brought him cannot be measured in value.