B Andracchio

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When one of two same-amount liquid quantities was actually, or proposed to be, altered by a very tiny (smidgen) amount, kindergartners and 2nd graders failed to recognize the resulting inequality, whereas 3rd and 4th graders were increasingly successful. Alterations larger than a smidgen, but still small, improved the judgments of 2nd, 3rd, and 4th graders(More)
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