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In this lesson, you will learn how to determine and apply significant digits within real-life contexts, enhancing your measurement skills. Discover the importance of precision in measurements, which is defined by the smallest unit of your measuring tool. We will cover vocabulary essential for understanding significant digits, complete examples, and guided practice to reinforce these concepts. Prepare for your homework and upcoming test with detailed reviews and exercises that will solidify your grasp on precision and accuracy in measurements.
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Lesson 12-6Pages 542-545 Precision and Measurement
What you will learn! How to determine and apply significant digits in real-life context.
What you really need to know! The precisionor exactness of a measurement depends on the unit of measure. The precision unitis the smallest unit on a measuring tool.
What you really need to know! Significant digitsinclude all of the digits of a measurement that you know for sure, plus one estimated digit.
Example 1: 1 second Identify the precision unit of the item.
Example 2: Identify the precision unit of the item. Fahrenheit 2° F
Example 3: State the measure of the piece of chalk using significant digits. 7.55 cm
Page 543 Guided Practice #’s 4-7
Read: Pages 542-543 with someone at home and study examples!
Homework: Page 544-545 #’s 8-20 all #’s 25-33 all
Study Guide and Review Pages 546-548 #’s 1-28 (Odd answers in back of book)
Prepare for Test! Page 549 #’s 1-16
Prepare for Test! Pages 550-551 #’s 1-18
Page 595 Lesson 12-6