Key Stage 3 National Strategy Handling data: session 3

© Crown copyright 2002 KS3 Strategy Slide 3.1 Objectives for session 3 To consider how to teach pupils to: –design and use an appropriate data handling structure to answer questions and draw conclusions –design a questionnaire or data collection sheet to provide relevant data

© Crown copyright 2002 KS3 Strategy Slide 3.2 Organising and investigating: Year 7 In an investigation: design and use an appropriate data handling structure to answer questions and draw conclusions design a questionnaire or data collection sheet to provide relevant data check data efficiently for errors investigate relationships between variables use software to represent data in simple graphs, charts or tables, justifying the choice of representation derive new information from data check whether conclusions are plausible review and amend the structure and its data to answer further questions

© Crown copyright 2002 KS3 Strategy Slide 3.3 Organising and investigating In an investigation: design and use an appropriate data handling structure to answer questions and draw conclusions design a questionnaire or data collection sheet to provide relevant data check data efficiently for errors investigate relationships between variables use software to represent data in simple graphs, charts or tables, justifying the choice of representation derive new information from data check whether conclusions are plausible review and amend the structure and its data to answer further questions

© Crown copyright 2002 KS3 Strategy Slide 3.4 Steps in designing a questionnaire 1Select the investigation, question to be answered or hypothesis to be tested 2Decide what information to collect in order to answer the question 3Decide on the sample 4Frame and order the questions

Questionnaire Do you use public transport?

© Crown copyright 2002 KS3 Strategy Slide 3.6 Consider answers to these questions Are you male or female? Are you aged between 8 and 14? Does your family own a car? Would you stay in an expensive hotel? Do you own a computer or a mobile phone? Are you the head of the household?

Questions and responses QuestionPossible responses What is your name? two boxes for given name and family name Are you male or female? one box to enter choice of male or female two tick boxes labelled male, female How old are you? age in years as a number several tick boxes labelled with age ranges How do you usually travel to work? a box to enter free text one box to enter choice, e.g. car, train, bus, walk, other five tick boxes labelled car, train, bus, walk, other Slide 3.7

Responses and data types QuestionData type Your name?namefree text (alpha-numeric) Male or female? choice of male or female limited text (alpha-numeric) tick boxes options limited characters, e.g. M or F (alpha-numeric) How old?numberlimited range of numbers (numeric) Your travel to work? free textfree text (alpha-numeric) choice: car, train, bus, walk, other limited text (alpha-numeric) five tick boxes limited characters, e.g. a, b, c, d, e (alpha-numeric) Slide 3.8

© Crown copyright 2002 KS3 Strategy Slide 3.9 Practical issues Collecting data Entering data Teaching styles Pupil organisation

© Crown copyright 2002 KS3 Strategy Slide 3.10 Objectives for session 3 To consider how to teach pupils to: –design and use an appropriate data handling structure to answer questions and draw conclusions –design a questionnaire or data collection sheet to provide relevant data