Table of Contents
Assessing Students’Understanding of Measurement Uncertainty
Schools Investigated to Date
List the following measurements in order from the most precise to the least precise and explain your reasoning:A: 9.7 m, 13 m, 1.45 m, 2.1 m, 0.005 mB: 9.7 s, 13 g, 1.45 m, 2.1 A, 0.005 N
What makes one measurement more precise than another?
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:A: 440.2, 421.7, 434.5, 523.4, 437.2, 428.9B: 440.2, 421.7, 434.5, 492.5, 437.2, 428.9What result should they report? Explain your answer.
Data Analysis for Question#2
How should data be treated?
How were answers reported?
Principle Student Findings
Further Research Questions
“It is better to be roughly right than precisely wrong.”