8.4 Modelling and Presenting Numeric Data

Introduction to Spreadsheets

Learning Objectives

• Pupils should be able to identify the main features of a spreadsheet including formatting and simple formula

• Pupils should be able to recognise the potential capabilities of spreadsheets

Lesson Outcomes

• Pupils should be able to correctly identify the features of a spreadsheet

• Pupils should be able to use formula correctly

Spreadsheet FeaturesColumn

Row

Cell Reference

Cell

Autosum Chart wizard

Sort

Formatting Cells

• We can format cells so that information is easier to interpret

Spreadsheets allow us to:•Add colour•Change the alignment (e.g. centre)•Add emphasis (e.g. bold, italic)•Change the font and size of text•Change the data type (e.g. currency, number)

Using Simple Formulae

• Spreadsheets allow us to calculate information quickly

• We use a formula so that if information changes, our calculations also change automatically

• Formulae always begin with an equals sign (=)

Using Simple Formulae

• To calculate the cost of buying each item once we would:

In cell B3 we need to write a formula that will include all of the data in column B

=(b2+b3+b4+b5+b6+b7)

Simple Formula

Command Key

Multiply *

Divide /

Subtract -

Addition +

Simple Functions

• Some spreadsheets have some pre-defined functions to make calculating data easier:

Function

Sum Adds together a range of numbers

Average Calculates the average of a range of numbers

Max Finds the highest number

Min Finds the lowest number

Functions

=sum(b2:b7)

A dialogue box will appear toguide you with the function values

This functions adds all of the values between b2 andb7