Laboratory Introduction: Accuracy and Precision

Created Feb. 7, 2024 by Joy Cedarquist

Lab Introduction: Accuracy and Precision

Grade Level: High School

Subject: Chemistry 1

Duration: 1 class period

DOK Level: 3

SAMR Level: Substitution

Indiana Standard:

11-12.LST.2.3: Follow precisely a complex multistep procedure when carrying out experiments, taking measurements, or performing technical tasks; analyze the specific results based on explanations in the test.
11-12.LST.5.2: Write informative texts, including scientific procedures/ experiments or technical processes that include precise descriptions and conclusions drawn from data and research.
11-12.LST.7.1: Conduct short as well as sustained research assignments and tasks to answer a question, test a hypothesis, or solve a problem.

Objective:

Students will learn to differentiate between precision and accuracy.
Students will write the hypothesis for a lab.
Students will determine which laboratory equipment is appropriate for measuring liquids.
Students will calculate absolute error and percent error.

Procedure:

Have students watch this video as homework the previous night as background.
Discuss the definitions of precision and accuracy to ensure student understanding.
Have students complete a lab that teaches the correct laboratory equipment that should be used to accurately measure liquids.
Link to previous lesson.
Link to next lesson.

Materials:

Standards