January 16, 2012
by shrmunrl1
Working with structured data – Functional Skills Module 4 – Lesson 8
In this lesson students are learning how to:
- present information to meet requirements
- validate data
STARTER
The Loyalty Card Scheme is planning to offer a Welsh language service. Mr Baker (Card no 11500), Mr King (Card no 129887), Mr Brennan (Card no 182344) and Ms Hughes (Card no 209889) all want to take advantage of this service. Produce a one page report showing their membership details (apart from street, postcode and telephone number) plus:
- the length of their membership (in number of days)
The report must also show:
- a title, the author of the report, the date it was created, number of pages, and its file name.
What needs to be done to meet these requirements?
You need to:
- search for the FOUR records
- save them as a sub-set
- create a new date field
- calculate the difference in days between the “JoinedDate” and today’s date
- decide where and how to provide the contextual information.
READ – Making tables clear and easy to understand on.
Use titles that make it clear what the table is about.
Make sure column headings are meaningful and displayed in full.
Check column alignment. This can cause problems if you have a right-aligned column next to one that is left-aligned.
Use the date function to insert the date into the page footer.
Switch on grid lines.
Hide columns that contain unnecessary information.
Use landscape orientation and adjust the margins to fit everything onto one page.
TASK 1 Calculating with Dates
Grab a white board pen and cloth.
Write down today’s date, then 14 February 2008 (the date when Mr Barker joined the Loyalty Scheme). What do you need to find out? Draw a line under 14 February 2008 and write “??? number of days” underneath it.
Put a minus symbol in front of 14 February 2008. Do you think a spreadsheet can calculate the difference between dates by subtracting the older from the newer?
How many days in a year? What is the number of days between 14 February 2008 and one year later, 14 February 2009? Open a spreadsheet and then find out whether or not it works.
Enter the 2009 date into cell A1, the 2008 date into cell A2, and the formula =A1-A2 into cell A3.
What do you think of the result?

If you are puzzled, what did you expected and need? – A number! What is actually shown – a date! Format the result in cell A3 as a number without any decimal places.
366 not 365? – 2008 was a leap year with 29 days in February!
REMEMBER the importance of:
- appropriate formatting
- checking the accuracy of a formula with easy numbers (for mental arithmetic or calculator in accessories).
TASK 2 Using Data Validation to Keep Rubbish Out.
The information you get out of a table is only as good as the data you put in.
What can be done to minimise risks of entering wrong data or entering data into the wrong place.
Spreadsheets have facilities which help users to minimise risks. A spreadsheet can check data entered against criteria set by the user: it accepts data that meets the criteria, e.g. a date for JoinedDate fields, and rejects all that does not, e.g. text for Points fields. The process of checking data on entry is called validation. You should test any data validation rules you set – just as you tested calculating days between two dates earlier in the lesson.
You have 5 minutes to explore the options under Data, Data Validation.

One way of controlling what goes in is to create a drop-down list of options.
TEST YOURSELF
At the end of you should be able to:
- enter and format numeric data
- perform calculations using data in two fields
- use a drop-down list for data-entry
- produce print-outs to meet requirements
SKILLS CHECK – Make sure that you can
enter suitable field names
adjust column widths
use the wrap text and text orientation features
enter and edit records
limit entries into a field
add a field to a table
sort on one field
sort on two fields
search on a single field
search on more than one field
use relational and logical operators in a search
use wild cards in a search
hide columns
enter information into a footer
use the date function
Extension Work – Complete SAM L2 , Task 2
Section B
You must not use the internet from this point onwards.
Task 2 – Visitor survey
Carbon dioxide (CO2) emissions from cars harm the environment. The New Forest National Park Authority wants to reduce the damage caused to the environment by cars. If the number of visitors who use cars to get to the forest could be reduced, less damage would be done.
The VisitorSurveyL2 file contains data from a survey. A sample of visitors to the New Forest were asked:
- How far have you travelled?
- How many times a year do you visit the New Forest?
- How did you get here?
- What incentive can we offer that would persuade you to leave your car at home?
A green, amber, red rating system was used to classify their vehicles according to how much carbon dioxide (CO2) they produce.
Green = 0.12 kg per mile
Amber = 0.20 kg per mile
Red = 0.30 kg per mile
(a) Open the VisitorSurveyL2 spreadsheet.
Enter your name, candidate number and centre number in the footer.
Use the spreadsheet to calculate the total amount of carbon dioxide (CO2) produced by cars in a year by each of the people surveyed. (6)
(b) Order the spreadsheet so that it ranks the people surveyed according to how much carbon dioxide (CO2) they produce. (2)
(c) Calculate the average amount of carbon dioxide (CO2) produced by a visitor in
a year.
Add this to the VisitorSurveyL2 spreadsheet. (1)
(d) Format the spreadsheet so that it is clear and easy to read. (1)
Evidence
A printout of your spreadsheet showing the data.
A printout of the spreadsheet showing the formula you used.
Remember
Insert your name, candidate number and centre number on both printouts.
Resave the file.
(e) Most of the people surveyed used their car to travel to the New Forest. They were asked what incentive would persuade them to leave their car at home on their next visit to the New Forest. The choices were:
- discounts on cycle hire
- vouchers for food and drink
- reduced admission to attractions
- free transport from bus/railway stations to their holiday accommodation.
The choices are recorded in VisitorSurveyL2.
Produce a chart showing the popularity of each incentive.
The chart must be clear and easy to read. (5)
Evidence
A printout of your chart.
Remember
Insert your name, candidate number and centre number on the printout.
Save the chart. (Total for Task 2 = 15 marks)