1. Scientific Notation on a Graphing Calculator

2. Warm-Up What is the purpose of using scientific notation to express values of numbers?

3. How to tell a graphing calculator to automatically express numbers in scientific notation 1. Press the MODE key. MODE

4. 2. Highlight the SCI section by using the right arrow key. 3. Press ENTER to select. 4. To return to the home screen, press 2 ND and then MODE.

5. 5. Type the number 123,456 and press ENTER. The number will appear as a decimal with E 5 to show place value. 1.23456 x 10 5

6. Write each number in scientific notation. Example Problems 14,140,000

7. Write each number in scientific notation. 0.00876

8. Write each number in scientific notation. 0.114

9. How to express scientific notation numbers in normal mode 1. Press the MODE key and highlight NORMAL. 2. Press ENTER.

10. 3. Press 2 ND and then MODE key to return home. 4. Type 1.23 5. Press then 2 nd key and then the comma (,) key to access EE. EE,

11. 6. Type in the exponent 4. 7. Press ENTER. Your number should look like the picture below.

12. 7.42 x 10 Write each number in standard form 5 Example Problems

13. 6.1 x 10 Write each number in standard form - 2

14. 3.714 x 10 Write each number in standard form 2

15. Up Next… Activity 1: Scientific Notation in the Real World