Transcript Accuracy Precision

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Objectives
◦ Today I will be able to:
 Differentiate between accuracy and precision
 Apply making accurate and precise measurements to a lab
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Informal assessment – monitoring student questions,
group interactions during the lab and responses to
the discussion after the lab
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Formal assessment – analyzing responses to the lab
calculations and results section and the exit ticket
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Common Core Connection
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Build Strong Content Knowledge
Attend to precision
Model with mathematics
Use appropriate tools strategically
Reason abstractly and quantitatively
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Evaluate: Warm-Up
Explain: Accuracy and Precision Notes
Engage/Explore: Accuracy and Precision Lab
Elaborate: Accuracy and Precision Lab
Discussion
Evaluate: Exit Ticket
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What does it mean to be accurate? What
about precise?
What are some techniques I can use to make
precise measurements in lab?
Why is it important to make accurate and
precise measurements?
 Measurement
is close to the
accepted value
 Having
more significant
figures in a measurement
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Today I will be able to:
◦ Differentiate between accuracy and precision
◦ Apply making accurate and precise measurements
to a lab
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Write the conclusion for the Accuracy and
Precision Lab
Signed syllabus due by Friday, August 29
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Warm-Up
Accuracy and Precision Notes
Accuracy and Precision Lab
Accuracy and Precision Lab Discussion
Exit Ticket
Take 2-3 minutes to read the lab
procedure. Put a box around
measurements you will record into the
data table.
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No closed toe shoes or aprons are required
Collect data for trial 1 and complete the trial
1 calculations at your desk. Do not complete
trial two calculations yet. Record your percent
error on the board.
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At your table discuss the following questions
and be prepared to share out:
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What was your percent error?
Were your measurements accurate?
Were your measurements precise?
How did the accuracy and precision of your
measurement affect the volume you calculated?
Collect data for trial 2 and complete the trial
2 calculations at your desk. Record your
percent error on the board.
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At your table discuss the following questions
and be prepared to share out:
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What was your percent error?
Were your measurements accurate?
Were your measurements precise?
How did the accuracy and precision of your
measurement affect the volume you calculated?
Using the data and the information used in
the discussion write your conclusion for the
lab. If you do not finish writing the conclusion
in class, it will become your homework.
What are important components to include in a
conclusion?
Icebreaker:
◦ If you could turn yourself into something different
(car, animal, plant, etc) for one week, what would it
be?
◦ Would you rather be 4 inches tall or 100 ft tall?