Assertion: thinking | /r/HasProperty | characterized by reversibility
Facets:
Source sentences:
text: Logical and systematic form of intelligence; manipulation of symbols related to concrete objects; thinking is now characterized by reversibility and the ability to take the role of another; grasps concepts of the conservation of mass, length, weight, and volume; predominantly operational thinking; nonreversible and egocentric thinking Formal operational stage Adolescence and Adulthood (12 years and on)