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>A DESCRIPTIVE STUDY OF VERBAL PROBLEMS IN MATHEMATICS TEXTBOOKS, GRADES SEVEN AND EIGHT, FROM FIVE TIME PERIODS: THE EARLY-60'S, THE EARLY-70'S, THE LATE-70'S, THE EARLY-80'S, AND THE LATE-80'S.
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A DESCRIPTIVE STUDY OF VERBAL PROBLEMS IN MATHEMATICS TEXTBOOKS, GRADES SEVEN AND EIGHT, FROM FIVE TIME PERIODS: THE EARLY-60'S, THE EARLY-70'S, THE LATE-70'S, THE EARLY-80'S, AND THE LATE-80'S.
