True sensitive periods are generally found only during development, when they are used for constructing the man that the child will become. They are most in number and most obvious in the first plane, from conception to age six. They are observable and have been seen throughout history, but never clarified until recent years.
During the sensitive periods:
- the child will learn new skills with greater perfection and ease
- there is tremendous energy, compared to that of a mighty river having to squeeze through a narrow opening
- there is great concentration and repetition around the concept or particular acquisition upon which the child is focusing.