Word: buts
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Dates: during 1960-1969
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Hansel was not the first to mount a scientific assault on elm disease. Experts have long known that it is caused by a fungus, carried by the elm-bark beetle, that clogs the tree's circulatory system. But ever since the disease hit the U.S. in the early 1930s...
IT is late afternoon, but the four-year-old insists: "It can't be. I haven't had my nap." Such is the mind of the child, by most indications illogical and full of nonsense. Not so, says Jean Piaget, a grumpy, mountain-climbing Swiss philosopher who is...
Dreams That Fly. As Freud found that slips of the tongue are keys to the unconscious, Piaget finds that the mental "mistakes" children make are clues to intellectual processes that are really precursors of grown-up thinking. An infant, for example, initially may suck at almost anything that comes near...
Between the ages of eleven and 15, the child begins to deal with abstractions and, in a primitive but methodical way, set up hypotheses and then test them, as a scientist does. In one experiment, Piaget handed children a weight at the end of a string and asked them to...
Classroom Hens. The timetable that seems to control the development of intellectual skills, Piaget is convinced, suggests that man's capacity for logical thought is not learned but is embedded, along with hair color and sex, in his genes. These innate rational tendencies do not mature, however, unless they...