Transcript Sig Fig/Safety Quiz, Accuracy and Precision Lab

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Objectives
◦ Today I will be able to:
◦ Apply knowledge of significant figures to a quiz
 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
Evaluate: Significant Figures/ Safety Quiz
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 are some techniques I can use to make
precise measurements in lab?
Why is it important to make accurate and
precise measurements?
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Today I will be able to:
◦ Apply knowledge of significant figures to a quiz
◦ 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
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Warm-Up
Significant Figures Quiz
Accuracy and Precision Lab Trial 1
Accuracy and Precision Notes
Accuracy and Precision Lab Trial 2
Accuracy and Precision Lab Discussion
Exit Ticket
Take everything off of your desk
except for a writing utensil and a
calculator
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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No closed toe shoes or aprons are required
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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?
 Measurement
is close to the
accepted value
 Having
more significant
figures in a measurement
Take 2-3 minutes to read the lab
procedure. Put a box around
measurements you will record into the
data table.
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:
◦ Would you rather have legs as long as your
fingers or fingers as long as your legs?
◦ Would you rather win the lottery or live twice as
long?