Year 7 ICTYear 7 ICT
WBGSWBGS
Collecting Data Collecting Data and and
InformationInformation
•Understand the difference Understand the difference between between datadata & & informationinformation
• Evaluate methods of Evaluate methods of performing a performing a surveysurvey
•Perform a class surveyPerform a class survey•AnalyseAnalyse the data the data•Draw conclusions from the Draw conclusions from the
datadata
Today's Lesson…Today's Lesson…
How to do you collect How to do you collect data?data?
What methods are there of What methods are there of collecting data?collecting data?
SurveySurveySurveySurvey
QuestionnaiQuestionnairere
QuestionnaiQuestionnairere
Opinion Opinion PollPoll
Opinion Opinion PollPoll
VoteVoteVoteVote
InternetInternetInternetInternet
RadioRadioRadioRadio SensorSensorSensorSensor
Data & InformationData & Information
What is the difference between What is the difference between data and information?data and information?
Data is raw facts and figures.Data is raw facts and figures.Information has structure and Information has structure and
meaningmeaning
Data is raw facts and figures.Data is raw facts and figures.Information has structure and Information has structure and
meaningmeaning
Data & InformationData & Information
Is this data or information?Is this data or information?
150108150108150108150108
15/01/0815/01/0815/01/0815/01/08
DATADATA
INFORMATION
PROCESSINGPROCESSING
•PopulationPopulation–Year 7Year 7
•SampleSample–7?7?
Opinion PollOpinion Poll
•QuickerQuicker•FasterFaster•Difficult to get Difficult to get everyone taking everyone taking part?part?
Why Choose a Why Choose a Sample?Sample?
ThinThink of k of
5 5 typetypes of s of foodfood
Put in a Put in a tally for tally for
each each answeranswer
Total up Total up the the
tallys tallys when when
completcompleteded
Total up Total up the the
tallys tallys when when
completcompleteded