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Here is an interesting question (not original with me):
A group of students are told to use a meter stick to find the length of a hallway.
They take 6 independent measurements (in cm) as follows: 440.2, 421.7, 434.5,
492.5, 437.2, 428.9 What result should they report? Explain your answer.
So, the actual questions for today are:
a) What result would you expect your students to report?
What explanation(s) would they give?
b) What result would *you* report in this situation?
What explanation would you give?
(b) Given the range of results, I should think that the students need more instruction on the proper use
of a meter stick for making such measurements. We also need to define where the hallway begins
and ends. Then, we try again. I expect the measurements should be much closer together for this type
of measurement.