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1
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4Published 2006“...Teachers engaged in research....”
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6Published 1994Subjects: “...Mathematics teachers Training of....”
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8Published 2009Subjects: “...Mathematics teachers Training of....”
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9Published 1969“...Yearbook (National Council of Teachers of Mathematics) ;...”
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10Published 1964“...Yearbook (National Council of Teachers of Mathematics) ;...”
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12
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13Published 1977Subjects: “...Teachers In-service training....”
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15Published 1961Conference Proceeding Book
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16Published 1936“...Yearbook (National Council of Teachers of Mathematics) ;...”
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20