2. Year 1 Credit Mathematics Thursday, 22 October 2015 Lesson Objective Chapter 1 Calculations and the Calculator Standard Form Scientific Notation - Calculator To be able to use the calculator to calculate values using scientific notation.

3. Standard Form Recap –

4. P la n e ta ry D a ta S u n Ma s s 2 000 000 000 000 000 000 000 000 000 000 kg

5. Planetary Data Jupiter mass 2 000 000 000 000 000 000 000 000 000 kg

6. Pl a n et a r y Data E art h mass 6 000 000 000 000 000 000 000 000 kg

7. Moon mass 70 000 000 000 000 000 000 000 kg Planetary Data

8. 2 000 000 000 000 000 000 000 000 000 000 2 000 000 000 000 000 000 000 000 000 6 000 000 000 000 000 000 000 000 70 000 000 000 000 000 000 000 Can you write these numbers in standard form?

9. 2 000 000 000 000 000 000 000 000 000 How did you do? × 10 27 6 000 000 000 000 000 000 000 000× 10 24 70 000 000 000 000 000 000 000× 10 22 × 10 30

10. Planetary Data Sun diameter 1 390 000 km

11. Planetary Data Jupiter diameter 143 000 km

12. Planetary Data Earth diameter 13 000 km

13. Moon mass 3476 km Planetary Data

14. 1 390 000 143 000 13 000 3476 Can you write these numbers in standard form?

15. You are here World Population: 6 450 000 000 = 6.45 billion = 6.45 × 10 9

16. Year 1 Credit Mathematics Thursday, 22 October 2015 C Write in Scientific Notation Starter (a) 3 x 9 Calculations and the Calculator (a) 2300 A Calculate the followingB Find the length of x (b) 0.00534 5 10 (b) 5 ÷ 5 Chapter 1 Standard Form Scientific Notation - Calculator 6 3 10cm 20cm x cm 10 2 = x 2 + 8 2 100 = x 2 + 64 100 - 64 = x 2 pythagoras 36 = x 2 6 = x 2 (c) 569200(d) 0.05060 27 50 1 5 x 3 6 5 2 2. 3 x 10 3 5.34 x 10 - 3 5. 692 x 10 5 5.06 x 10 - 2

17. Year 1 Credit Mathematics Thursday, 22 October 2015 Chapter 1 Calculations and the Calculator Standard Form Scientific Notation - Calculator We can use scientific notation on the calculator. Depending on your calculator you will use one of the following buttons. xyxy 10 x  EXPEE (you may have to use the shift button) Enter the 5.4x10 3 into your calculator Calculator Key Presses 5 4 0 xyxy 3

18. Year 1 Credit Mathematics Thursday, 22 October 2015 Chapter 1 Calculations and the Calculator Standard Form Scientific Notation - Calculator xyxy 10 x EXPEE  (you may have to use the shift button) Example: 6.25x10 -7 Calculator Keys 6 2 x xyxy 0 - 1 Example: 8.31x10 11 Calculator Keys 75 8 3 x xyxy 0 1 1 11 Not the subtraction button

19. Year 1 Credit Mathematics Thursday, 22 October 2015 Chapter 1 Calculations and the Calculator Standard Form Scientific Notation - Calculator Calculate: 4 x 10 6 ÷ 8 x 10 6 It is good practice to put each value in brackets ( 4 x1 0 xyxy 6) x ( 8 x1 0 xyxy 6) =0.5

20. Year 1 Credit Mathematics Thursday, 22 October 2015 NO CALCULATOR Now try p3 Ex 1.1 Q 1 to 7 Show your working Complete for Next Lesson Extension Investigation Questions Page 2 Q1 and Q2 Complete for Next Lesson Homework Complete Homework Sheet 1 on or before Monday Chapter 1 Calculations and the Calculator Revision Non calculator methods