Piaget theorized that children move through distinct stages of cognitive development, with each stage being qualitatively different from the one preceding. his theory reflects which aspect of developmental philosophy?

Piaget  theory reflects the discontinuity aspect of developmental philosophy.

Explanation:  

While other psychological approaches where development is seen as a smooth, linear and continuous process where people get better at certain skills during their lifetime, Piaget stages of cognitive development in children reflect the idea that this changes can be qualitative.

He then sees this development as a discontinuous process. When individuals change quickly and get into a new sage, the change can often last shortly but with that new step, a person will qualitatively adapt to the world.

Since there is a stable period versus a change, the experiences of infants demonstrate that the interaction of different factors in growing will enable these experiences to have a series of stages and an evolutive process where changes are qualitative.

These four stages of development he identified are:

they encountered severe weather for which they were poorly prepared.