Word: fractionating
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...studies are hard on teacher morale. Sociologist James S. Coleman's celebrated 1966 survey of pupil achievement seemed glum news for teachers. That study argued that family background made almost all the difference, and that qualities of schools and teachers, good and bad, accounted "for only a small fraction of differences in pupil achievement." Later researchers, examining Coleman's work, found that pupils do seem to learn more when they receive more hours of instruction...
...Radcliffe heavyweight crew displayed awesome raw power this spring in thundering to impressive victories over MIT, Dartmouth, BU, NU, Princeton, Cornell and Yale. But at the Eastern Sprints championships on Connecticut's Lake Waramug, the heavies' comeback effort fell just short and they wound up second a fraction of a second behind an upstart Penn boat...
...eruption of Mount Tambora in Indonesia was so dense that it made 1816 in much of the U.S. "the year without a summer." Nothing comparable is likely to happen because of Mount St. Helens. Meteorologists estimate that its cloud of ash will reduce world temperatures by only a tiny fraction of a degree Fahrenheit-a deviation that will be too slight for people to notice...
...year later, in 1950, the New York Times Magazine published a letter by Simon which questioned federal wiretapping policies. His FBI file expanded a fraction more. M.A. Jones of the FBI Washington office reviewed his case and "recommended that no action be taken in answer to Simon." A handwritten message at the bottom of the memo read, "I agree...
They ripped powerful Wisconsin. They left neighboring MIT, defending champ Yale and archrival Princeton staring into their Wake. But all that proved little consolation to the Radcliffe heavies yesterday, as upstart Penn stole the national crown from under Black and White oars by a fraction of a second...