Adolecence - Santrock

Reference: Adolescence by John W.Santrock

I have just been reading about the Nature of Development and making notes about the same. Something new I just read was about Continuity and Discontinuity as regards to development. As I understand it, it means:

Continuity – cumulative change – what seems like abrupt discontinous events are a result of learning (growth and practice) e.g. a child’s first word (practice of sounds) or puberty (biological changes occurring)

Discontinuity – distinct changes/abrubt – passing through a series of stages in which change is Qualitatively rather than Quantitatively different. E.g. child moves from not being able to think abstractly to being able to do so. This is a qualitative discontinuous change in development. From not understanding to understanding. Moving from one state of cognition to another.