Mathematics, 31.03.2020 01:03 acrooks86
One hundred teachers attended a seminar on mathematical problem solving. The attitudes of representative sample of 12 of the teachers were measured before and after the seminar. A positive number for change in attitude indicates that a teacher's attitude toward math became more positive. The twelve change scores are as follows. 3; 7; −1; 1; 0; 5; −3; 2; −1; 6; 5; −2
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One hundred teachers attended a seminar on mathematical problem solving. The attitudes of representa...
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