How do concrete materials support Piaget's theory of preoperational intelligence?

Whats your theory on larger brains and intelligence?

• Scientists have been divided about what they're measuring and how they're measuring it. Anthropologists have long used a skull's interior volume and compared it against body size for a rough estimate of intelligence, measurements known as encephalization quotients. As brain-imaging techniques have improved, though, scientists have measured actual brains with greater precision. But is it size or is it neurons that we need to measure? Is it weight or circumference? Should encephalization quotients use total body weight or lean body mass? Should we correct for body size at all? How do you measure intelligence? With so many brains tackling these questions, it's hard to reach a consensus on what might be the most meaningful measure. That hasn't stopped researchers from drawing conclusions, though. In 2005, psychologist Michael McDaniel evaluated studies that used brain-imaging and standard intelligence tests and found that unequivocally, bigger brains correlated with smarter people Since males have the bigger brains, they must have the smarts, right? In one study, scientists converted the SAT scores of 100,000 17- and 18-year-olds to a corresponding IQ score and found that males averaged 3.63 IQ points higher than the females. The study, did, however, use about 10,000 more females than males, which may have affected the average, but the study's authors believe that the greater the brain tissue, the greater the ability for cognitive processing What's your opinion on the matter? Neanderthals had brains 17% larger than the average brain today but the parts that were more developed were parts related to motor skills they think.

• Answer:

  It's not the size that counts. Cuttlefish and octopi and squid have small brains but are highly intelligent. It's the neuron density and the folds which house them which make up intelligence.