1. Spreadsheets and Simulation Software
GCSE

2. Spreadsheets
A spreadsheet is a computer program designed to display and process numbers.

3. Spreadsheets – Different uses
WHO
USES
SPREADSHEETS?

4. Spreadsheets – Cell Referencing

5. Spreadsheets – What if…?
If a number in one cell is changed, then the value in another cell may also change, if it uses the first number in the calculation.
EXAMPLE

6. Charts

7. Spreadsheet - Charts

8. Modelling
Modelling is when a computer program attempts to represent a real situation using mathematical equations

9. Simulation
Simulation programs are designed to predict the likely behaviour of a real-life system which is represented as a mathematical model

10. Modelling - Example
Weather forecasting – data is collected and calculations are made to forecast future weather.

11. Simulation - Example
A flight simulator is used to train pilots and consists of full-size cockpits mounted on hydraulic legs.

12. Flight Simulator

13. Flight Simulator – More Examples
Rides at theme parks are examples of simulators
Another form of simulator is virtual reality

14. Simulation software - Benefits
Safety; mistakes can be made in a simulator
Training is not affected by weather conditions
Emergency situations/rare situations can be simulated

15. Simulation software - Benefits

16. Simulation software - Drawback
The simulation is only as good as the rules the computer programmer has used to represent the real life event. Simulations can have their limitations.

17. Moodle

18. Absolute cell referencing
Absolute cell referencing tells the spreadsheet not to alter the formula as you drag or copy it to another cell.
Absolute cell references are represented by the $ sign.
EXAMPLE