Topic 3
Spreadsheets and Modelling
Lesson 1
Introducing the Unit
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What are we learning today?
We are learning to
use spreadsheet models to answer what if…? questions
What I’m looking for
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using spreadsheet features to find the answers rather than
working them out ourselves
This is because
spreadsheet models can be used to analyse data in
complicated ways so that we can find the answers to
questions
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Your Task
• Worksheet
• Answer the questions about the financial
model of a zoo
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Terminology Recap
A worksheet
Columns
(letters)
Text labels
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Numeric
data
Text labels
Rows
Column D
(numbers)
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Each cell has a
unique cell
reference e.g. D13
The formula can also
be viewed and edited
here in the formula bar
Formula
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Start with =
then
create formula
When you press Enter,
the formula will
automatically be
calculated.
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The data can be sorted in
alphabetical or numerical
order – using the AZ icons
The data can be
displayed on a
chart using the
Chart Wizard icon
By dragging the
fill handle,you can
copy and paste
the formula into
other cells
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What formula
should have
been
generated in
cell1101
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C7*D7
What is a model?
• (In ICT terms!)
• Tool that enables you to put different data
into a system and look at the outcomes it
produces
• Tool you can use to ask ‘what if…’
questions by changing variable or formulae
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Why use a spreadsheet?
•
•
•
•
Speed
Accuracy
Automatic calculations
Data can be changed easily
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In this unit you will learn:
• To use a spreadsheet to generate models
• To ask questions of the models in order to analyse
and present data
• To use techniques to generate more effective
models
• To understand the relationship between input and
output values in a model
• To discuss other types of modelling that can be
used to simulate different events
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Spreadsheet Exercises
• Go onto the VLE
• ICT > Years 7-9 > Year 8 > Topic 3 –
Spreadsheets and Modelling > Lesson 1
• Lesson 1 Spreadsheet Exercises.xls
• Follow the instructions on screen to
complete the exercises
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Imagine a School Fete
• Go onto the VLE
• ICT > Years 7-9 > Year 8 > Topic 3 –
Spreadsheets and Modelling > Lesson 1
• Lesson 1 Spreadsheet Practise.xls
• Use the worksheet to complete the
spreadsheet
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Plenary
• What is a model?
• What does a formula always start with?
• What is the symbol for multiplication in a
formula?
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Homework
Spreadsheet Crossword of key words
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