TWO KINDS OF INTELLIGENCE…

…have been identified. 1) Understanding problems and finding solutions: This “fluid” intelligence increases until around the age of 20, though some aspects may continue to develop as late as age 40. By age 25 the neurons (below) in the brain have fully developed. 2) Using skills and knowledge acquired through prior learning: Examples of this “crystallized” intelligence are remembering events, dates, and geographical locations, building vocabulary, and reciting memorized texts and poems. It also includes knowledge of how to reason, speak languages, and understand technology as well as such skills as riding a bike. This knowledge increases sharply in childhood but continues throughout life.