Successfully reported this slideshow.
Upcoming SlideShare
×

# Scientific notation

1,795 views

Published on

• Full Name
Comment goes here.

Are you sure you want to Yes No
• Be the first to comment

### Scientific notation

1. 1. Thursday, August 25th<br /><ul><li>Please take out HW (Wks “section 1-3 Exponents”
2. 2. Write Down Homework
3. 3. Complete Warm Up</li></ul>Warm Up <br />Write in exponential form: 3 x 3 x 4 x 4 x 4 <br /> Write in standard form: 12 cubed <br />
4. 4. Corny Joke of the Day<br />What did the pretty rock say to the ugly rock?<br />You are not very gneiss looking<br />
5. 5. Tests <br />You will get back tomorrow  <br />
6. 6. Exponents<br />
7. 7. Raise your hand when you find the answer<br />If you blurt out an answer you’re disqualified<br />Candy Toss <br />
8. 8. Anything raised to the power of 0 =?<br />
9. 9. 1 = <br />
10. 10. Standard form<br />4 cubed<br />
11. 11. Exponential form form<br />1 x 3 x 3 x 1 <br />
12. 12. 5 = <br />
13. 13. 10 = <br />
14. 14. Table of contents<br />Unit #2 <br />Unit Name: Exponents, O of O, Scientific Notation, and Square Roots<br />Date: 8/24<br />Section: 1-3<br />Title: Exponents<br />Pages: 1-2<br />
15. 15. Table of contents<br />Unit #2 <br />Unit Name: Exponents, O of O, Scientific Notation, and Square Roots<br />Date: 8/25<br />Section: 1-3<br />Title: Scientific Notation<br />Pages: 3-4<br />
16. 16.
17. 17.
18. 18.
19. 19.
20. 20.
21. 21.
22. 22.
23. 23.
24. 24.
25. 25.
26. 26.
27. 27. Vocabulary<br />Scientific Notation: <br />Method of writing numbers that are very large OR Small. <br />Has two parts: <br />Decimal <br />x<br />2. Power of 10<br />1.8 x 10-3<br />
28. 28. I. The first part<br />There MUST be ONLY ONE digit to the left of the decimal. Between \$1.00 but less than \$10.00<br />Examples: 3.45, 1.320<br />Non-Examples: 11.56, .0565<br />We must move the decimal in order to meet this rule.<br />
29. 29. Write the width of the universe in scientific notation<br />210,000,000,000,000,000,000,000 miles<br />Where is the decimal point now?<br />Where would you put the decimal to make this number be between 1 and 10?<br />
30. 30. Write the width of human hair in scientific notation<br />.0018 cm <br />Where is the decimal point now?<br />Where would you put the decimal to make this number be between 1 and 10?<br />
31. 31. Reading Math<br />If you do not see a decimal point in a number, it is understood to be at the end of the number.<br />Helpful Hint #1<br />23 = 23.0<br />
32. 32. II. <br />Powers of 10<br />Positive Exponent<br /><ul><li>What you notice about the exponent and the number of zeroes?</li></ul>Negative Exponent<br /><ul><li>What do you notice about the exponent and the number of zeroes?</li></li></ul><li>Conclusion?<br />Positive Exponent<br />Move decimal point to the RIGHT<br />Exponent corresponds with the amount of zeroes after 1<br />Negative Exponent<br />Move the decimal point to the LEFT <br />Exponent minus 1 corresponds with the amount of zeroes before 1<br />
33. 33. You Try!<br />Find the value of each power of 10.<br />a. 10–2<br />c. 1010<br />b. 105<br />Start with 1.0 and move the decimal point five places to the right.<br />Start with 1.0 and move the decimal point ten places to the right.<br />Start with 1.0 and move the decimal point two places to the left.<br />10,000,000,000<br />100,000<br />0.01<br />
34. 34. Writing Powers<br />Write each number as a power of 10<br />A. 1,000,000 <br />B. 0.0001 <br />C. 1,000 <br />The decimal point is four places to the left of 1, so the exponent is –4.<br />The decimal point is three places to the right of 1, so the exponent is 3.<br />The decimal point is six places to the right of 1, so the exponent is 6.<br />
35. 35. III. Puttingit all together!Scientific to Standard<br />Steps <br />Look at EXPONENT<br />Positive=Right<br />Negative=Left <br />2. Move decimal that direction<br />3. Empty spaces fill in with a zero! <br />Just Watch!<br />Write in Standard form<br />2.34 x<br />Positive exponent= move DECIMAL to right<br />2340.0 <br />
36. 36. Reading Math<br />Standard form refers to the usual way that numbers are written—not in scientific notation.<br />Helpful Hint #1<br />
37. 37. You Try!!! <br />1. 23.5 x <br />2. .04 x <br />3. 9.2 x <br />4. .007 x<br />To the left, to the left….?<br />To the right, to the right….?<br />
38. 38. IV. Standard to Scientific <br />Steps: <br />Write the number with only one number to the left of the decimal<br /> Power of 10:<br />How do I get back to the original decimal?<br />Right=Positive<br />Left=Negative <br />3. Put it all together! <br />Just Watch! <br />Write in Scientific Notation<br />2345<br />2.345<br />Move to right to get to 2345.<br />3 to the right=<br />3. 2.345 x <br />
39. 39. You try!!!!!<br />Stuck?<br />Got notes!<br />.0023<br />233456<br />.0001234<br />12345<br />
40. 40. Any Questions?!?!?!?!<br />
41. 41. Worksheet <br />1-3 exponents<br />Homework<br />