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Course 3

4-4. Scientific Notation. Course 3. An ordinary quarter contains about 97,700,000,000,000,000,000,000 atoms. The average size of an atom is about 0.00000003 centimeters across. The length of these numbers in standard notation makes them awkward to work with.

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Course 3

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  1. 4-4 Scientific Notation Course 3 An ordinary quarter contains about 97,700,000,000,000,000,000,000 atoms. The average size of an atom is about 0.00000003 centimeters across. The length of these numbers in standard notation makes them awkward to work with. Scientific notationis a shorthand way of writing such numbers.

  2. 4-4 Scientific Notation Course 3 Vocabulary

  3. Scientific Notation Introduction video: https://www.youtube.com/watch?v=Wf-HlVqZPHY

  4. Is always a power of 10. The power of the exponent tells you how many places to move the decimal. A number that is greater than or equal to 1 and less than 10. It may or may not be a decimal.

  5. Write on p. 52 in MSGEx 1: Write 4,900,000 in scientific notation. Helpful Hint! If the number is getting SMALLER, the exponent is getting LARGER. If the number is getting LARGER, the exponent is getting SMALLER.

  6. Ex 2: Write 497.23 in scientific notation. Helpful Hint! If the number is getting SMALLER, the exponent is getting LARGER. If the number is getting LARGER, the exponent is getting SMALLER.

  7. Ex 3: Write 0.0043 in scientific notation. Helpful Hint! If the number is getting SMALLER, the exponent is getting LARGER. If the number is getting LARGER, the exponent is getting SMALLER.

  8. Ex 4: Write 90,080 in scientific notation. Helpful Hint! If the number is getting SMALLER, the exponent is getting LARGER. If the number is getting LARGER, the exponent is getting SMALLER.

  9. Do Now • Study for vocab check • After vocab check turn into my inbox & take out homework from last night and prepare to ask questions

  10. Ex 5: Write in standard notation. Helpful Hint! If the number is getting SMALLER, the exponent is getting LARGER. If the number is getting LARGER, the exponent is getting SMALLER.

  11. Ex 6: Write in standard notation. Helpful Hint! If the number is getting SMALLER, the exponent is getting LARGER. If the number is getting LARGER, the exponent is getting SMALLER.

  12. Ex 7: Write in standard notation. Helpful Hint! If the number is getting SMALLER, the exponent is getting LARGER. If the number is getting LARGER, the exponent is getting SMALLER.

  13. How to read scientific notation on calculator • Multiply 4,000,000 x 4,000,000 on calculator =1.6 E12 “E” Stands for “exponent” So, this is

  14. Practice:1. Front side of last night’s homework2. When you are finished, begin work in workbook. Problems listed under #4 on today’s agenda -----------------------

  15. Ticket out the door(write on a scratch sheet of paper and hand to me before you leave)Write 8,000 in scientific notation.Write in standard notation.

  16. Warm-up • Take out homework from last night and prepare to ask questions • Announcement: Timed skills check over perfect cubes and cube roots #’s 1-5 tomorrow!

  17. Do Now • Study for vocab check • After vocab check turn into my inbox & take out homework from last night and prepare to ask questions

  18. How to read scientific notation on calculator • Multiply 4,000,000 x 4,000,000 on calculator =1.6 E12 “E” Stands for “exponent” So, this is

  19. Work Session • Card sort – with table group, order numbers from least to greatest • After you are finished, call Mrs. Bullock over to check • For the remainder of class, work on the problems listed under #4 on today’s agenda.

  20. Ticket out the Door • Explain how to write a number that is between 0 and 1 in scientific notation. Use an example to illustrate your explanation.

  21. Warm-up • Turn in your vocabulary activity to my inbox. • Quickly review your perfect cubes and cube roots for today’s skills check!

  22. Cube & Cube Roots Skills Check • You will have 5 minutes exactly to complete. • After you are done, turn over on your desk & sit quietly.

  23. Review: • Multiply:

  24. Multiplying in SNExample at top of page • Multiply: *****ALWAYS: Double check to make sure your ANSWER is in scientific notation

  25. Multiplying in SN#1 • Multiply: *****ALWAYS: Double check to make sure your ANSWER is in scientific notation

  26. Multiplying in SN#3 • Multiply: *****ALWAYS: Double check to make sure your ANSWER is in scientific notation

  27. Review: • Divide:

  28. Dividing in SNExample at top of page • Divide: *****ALWAYS: Double check to make sure your ANSWER is in scientific notation

  29. Dividing in SN#6 • Divide: *****ALWAYS: Double check to make sure your ANSWER is in scientific notation

  30. Dividing in SN#10 • Divide: *****ALWAYS: Double check to make sure your ANSWER is in scientific notation

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