One of the problems read: Jean did a survey of ages of children in her block. She created this frequency table. Find the maximum, minimum, and range of the ages.
Ages | Frequency |
2 | 5 |
3 | 4 |
4 | 3 |
5 | 2 |
6 | 1 |
7 | 2 |
8 | 6 |
Total | 23 |
S2's answers were: min=1, range=5 and max=6, but there was evidence that she had first written down 2, 6, 8, then erased them and wrote down 1,5 and 6.
"These are not correct, S2," I told her, "you had it right the first time and it looks you erased the right answers and wrote these wrong answers."
"No," she protested, "the teacher said we always had to do things with the data that she collected, not with the first numbers."
"If that's what your teacher wants you to do, then her question is wrong. Because she asked for ages."
My third-grader then got down to the key issue at hand.
"I know that these answers are not right," she said, "but this is what my teacher said we have to do. When she gives these questions on the test, I have to do things her way. Otherwise, she will take points off."
"I know that these answers are not right," she said, "but this is what my teacher said we have to do. When she gives these questions on the test, I have to do things her way. Otherwise, she will take points off."
Sigh.
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