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| Discussion
Topics for Video #2 |
Measurement
Uncertainty
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Math Standard:
Measurement
Apply appropriate techniques, tools and formulas to determine measurements:
- select and apply techniques and
tools to accurately find length, area, volume, and angle measures to appropriate
levels of precision.
Math Standard: Representation
Create and use representations to organize,
record, and communicate mathematical ideas.
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Measurements
Each student should discuss what measurements
they plan to make in order to answer their Challenge Question.
- What are some examples of measurement
tools?
- How do you choose which tools to
use in your project?
- Why is it important to keep a log
book or data sheet?
- Are there challenges in making
your measurements? If so, what are they? How will you overcome the challenges?
Uncertainty
The concept of measurement uncertainty
is sometimes challenging to understand. Recall the activity in the first
DLN Event, where Marci asks the students to measure the length of the desk
with their hands. She then has the students measure their hands with a
ruler and calculate the length of the desk in centimeters.
- Why do the students
arrive at somewhat different answers for the length of the desk in centimeters?
- How would you quantitatively
express the uncertainty in the measurements? (How many significant figures
make sense?)
- What procedures might
be implemented to improve the measurements of the length of the desk?
- How do we know whose
answer is "correct"?
General Schedule of Events and NES Challenge Timeline
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