In the period of Kemal three aspects of knowledge should be taught to the child: the knowledge of the land, of the water, and of the sky.

• The knowledge of the land is the knowledge of what is produced in the land, in the mineral and vegetable kingdoms.
• The knowledge of the water is of the creatures that live in the water, the dangers of the water, and the way that men travel and have travelled over the sea.
• The knowledge of the sky is about the stars and planets, the sun and the moon and the effect of wind and storm.