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Housekeeping
 Drop boxes – submit your scores
 Be sure to check out the pacing guide in the lesson folder!
 Need help?? – Stay after class or stop into the help session
Unit 1: Lesson 9 -Scientific
Notation
Learning Target:
• Write, add, and subtract numbers in scientific notation and
understand what is meant by the term leading digit
Let’s recall…….
 Lesson 7: Magnitude “How big or small”
 Fact 1: There is always a positive power of 10 that exceeds a
given number
 Fact 2: There is always a negative power of 10 that is smaller
than a given number
Scientific notation
Scientific notation
Consider this…
 The estimated number of stars in the universe: 6 x 1022
 This is a 23 digit whole number with the leading digit 6 followed by 22
zeroes.
 When it is written as 6 x 1022
, it is expressed in scientific notation
Scientific Notation
 d is a finite decimal ≥ 1 and < 10.
 n is an integer
 The integer n is called the order of magnitude of the decimal
𝑑 𝑥 10 𝑛
Example 1:
The finite decimal 234.567 is equal to every one of the following:
Which one is an example of scientific notation? Why?
Now you try!
Scientific notation
Scientific notation
Scientific notation
Scientific notation
Scientific notation
Scientific notation
Scientific notation
Scientific notation
Scientific notation
Scientific notation
Lesson Wrap Up
 Today we learned how to write
numbers in scientific notation.
 Scientific notation allows us to
determine the order of
magnitude of a finite decimal.
 Tomorrow we will look at how to
compute with numbers
expressed in scientific notation.
Today’s Independent Work:
• Complete the BSN Lesson
• Complete IXL practice skills G.1 &
G.2 – Submit your smartscores to
the dropbox
• Check out the virtual nerd videos
for more instructions on scientific
notation
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Scientific notation

  • 1. Housekeeping  Drop boxes – submit your scores  Be sure to check out the pacing guide in the lesson folder!  Need help?? – Stay after class or stop into the help session
  • 2. Unit 1: Lesson 9 -Scientific Notation Learning Target: • Write, add, and subtract numbers in scientific notation and understand what is meant by the term leading digit
  • 3. Let’s recall…….  Lesson 7: Magnitude “How big or small”  Fact 1: There is always a positive power of 10 that exceeds a given number  Fact 2: There is always a negative power of 10 that is smaller than a given number
  • 6. Consider this…  The estimated number of stars in the universe: 6 x 1022  This is a 23 digit whole number with the leading digit 6 followed by 22 zeroes.  When it is written as 6 x 1022 , it is expressed in scientific notation
  • 7. Scientific Notation  d is a finite decimal ≥ 1 and < 10.  n is an integer  The integer n is called the order of magnitude of the decimal 𝑑 𝑥 10 𝑛
  • 8. Example 1: The finite decimal 234.567 is equal to every one of the following: Which one is an example of scientific notation? Why?
  • 20. Lesson Wrap Up  Today we learned how to write numbers in scientific notation.  Scientific notation allows us to determine the order of magnitude of a finite decimal.  Tomorrow we will look at how to compute with numbers expressed in scientific notation. Today’s Independent Work: • Complete the BSN Lesson • Complete IXL practice skills G.1 & G.2 – Submit your smartscores to the dropbox • Check out the virtual nerd videos for more instructions on scientific notation