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What is Data Handling? An Introduction Bridging the gap to.

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1 What is Data Handling? An Introduction Bridging the gap to

2 Welcome to all learners! Click to read on … Do You …Do You … - know what IS data handling?- know what IS data handling? - think charts and graphs are hard?- think charts and graphs are hard? You need a slide show that is … - Short! - easy to follow - learner-friendly: 1 step at a time - for beginners AND revisers! This slide show will …This slide show will … - help you to understand WHY we handle data!- help you to understand WHY we handle data!

3 What is Data Handling? How to use this resource You can control how fast or slow you go, using: FORWARD: OR OR Enter OR Left-hand mouse BACK: OR OR Back Space TO START SLIDESHOW: F5 OR Slide Show > View Show TO END SLIDESHOW: Escape

4 What is Data Handling? Read the headlines! 50% of pupils vote for 100m Sprint Other field events faced the high jump, when half of sports-mad Birmingham pupils voted for the 100-metre sprint as their favourite event … But where did these headlines come from? What data do you think was collected? (What IS data?) … and … Do you think the headlines are always accurate? Do you believe them?!

5 What is Data Handling? First things first – what IS data? This is data … In Class 6J, Height Number of Pupils less than 150cm high 9 less than 150cm high 20 more than 200cm high 1 30 … and this … The temperature in 6M’s classroom: Monday 36 ° C Tuesday 29 ° C Wednesday 28 ° C Thursday 30 ° C Friday 31 ° C … and this … In Class 6J, 2 pupils prefer the High Jump 5 pupils prefer the Long Jump 15 pupils prefer the 100m Sprint 3 pupils prefer the Javelin 5 pupils prefer the 300m Relay (Total: 30 pupils) … and this … 6K’s bedtimes: 8:30pm, 8:00 pm, 7:45 pm, 9:30 pm, 7:00 pm, 10:00 pm, 7:20 pm, 8:15pm, 7:29 pm, 11:45 pm, 8:50 pm, 8:15 pm, 9:00 pm, 7:18 pm, 9:25 pm, 10:30 pm, 8:18 pm, 9:00 pm, 8:55 pm, 8:40 pm, 7:15 pm,7:00 pm, 9:32 pm, 7:59 pm,9:15 pm, 7:10 pm, 9:45 pm, 8:30 pm, 8:25 pm, 9:30 pm (Total: 30 pupils)

6 What is Data Handling? Data = Information ! So data is information about anything! … favourites … how hot …how many … how tall … what time …how heavy … Data can be numbers Data can be words

7 In Class 6J, 9 pupils are less than 150cm high 20 pupils are 150cm – 200cm high 1 pupil is more than 200cm high (Total: 30 pupils) In Class 6J, 9 pupils are less than 150cm high 20 pupils are 150cm – 200cm high 1 pupil is more than 200cm high (Total: 30 pupils) In Class 6J, 9 pupils are less than 150cm high 20 pupils are 150cm – 200cm high 1 pupil is more than 200cm high (Total: 30 pupils) In Class 6J, 9 pupils are less than 150cm high 20 pupils are 150cm – 200cm high 1 pupil is more than 200cm high (Total: 30 pupils) In Class 6J, 9 pupils are less than 150cm high 20 pupils are 150cm – 200cm high 1 pupil is more than 200cm high (Total: 30 pupils) In Class 6J, 9 pupils are less than 150cm high 20 pupils are 150cm – 200cm high 1 pupil is more than 200cm high (Total: 30 pupils) What is Data Handling? Where did the headlines come from? Someone collected data like this … In Class 6J, 9 pupils are less than 150cm high 20 pupils are 150cm – 200cm high 1 pupil is more than 200cm high (Total: 30 pupils) In Class 6J, 9 pupils are less than 150cm high 20 pupils are 150cm – 200cm high 1 pupil is more than 200cm high (Total: 30 pupils) In Class 6J, 9 pupils are less than 150cm high 20 pupils are 150cm – 200cm high 1 pupil is more than 200cm high (Total: 30 pupils) In Class 6L, Ash Primary 9 pupils are less than 150cm high 20 pupils are 150cm – 200cm high 1 pupil is more than 200cm high (Total: 30 pupils) In Class 6A, Oak Juniors 9 pupils are less than 150cm high 20 pupils are 150cm – 200cm high 1 pupil is more than 200cm high (Total: 30 pupils) … and organised it so they could... …interpret the data like this … In Class 6J, Firs Primary Height Number of Pupils less than 150cm high 9 less than 150cm high 20 more than 200cm high 1 30 Of course, not all conclusions are sensible!!!

8 What is Data Handling? Recap: 3 Steps in Data Handling 1. Collect the data Get the information you need 1. Collect the data Get the information you need H e i gh t N u m b e r l e ss t han 1 50 c m h i gh 9 l e ss t han 1 50 c m h i gh 2 0 m o r e t han 2 00 c m h i gh K’s bedtimes: 8:30pm, 8:00 pm, 7:45 pm, 9:30 pm, 7:00 pm, 10:00 pm, 7:20 pm, 8:15pm, 7:29 pm, 11:45 pm, 8:50 pm, 8:15 pm,9:00 pm, 7:18 pm, 9:25 pm, 10:30 pm, 8:18 pm 3.Interpret the data Explain it! … Say what it means! Draw some conclusions! 3.Interpret the data Explain it! … Say what it means! Draw some conclusions!

9 What is Data Handling? Recap: 3 Steps in Data Handling Step 1. Collect the data Step 2. Organise & display the data Step 3. Interpret the data Height Number less than 150cm high 9 less than 150cm high 20 more than 200cm high K’s bedtimes: 8:30pm, 8:00 pm, 7:45 pm, 9:30 pm, 7:00 pm, 10:00 pm, 7:20 pm, 8:15pm, 7:29 pm, 11:45 pm, 8:50 pm, 8:15pm, 9:00 pm, 7:18 pm, 9:25 pm, 10:30 pm, 8:18 pm

10 Interpret means: Can you explain it?… What does it mean ? What is Data Handling? Some data is easy to interpret … DATA: In Class 6M, There are 20 boys and 10 girls

11 Interpret means: Can you explain it?… What does it mean ? What is Data Handling? Some data is easy to interpret … 1 ST THOUGHTS: 6M is a mixed class with both boys and girls 1 ST THOUGHTS: 6M is a mixed class with both boys and girls EVEN BETTER! There are more boys than girls EVEN BETTER! There are more boys than girls EVEN BETTER! There are 10 more boys than girls EVEN BETTER! There are 10 more boys than girls OR … There are 10 fewer girls than boys OR … There are 10 fewer girls than boys OR … There are twice as many boys as girls OR … There are twice as many boys as girls DATA: In Class 6M, There are 20 boys and 10 girls OR … There are half as many girls as boys OR … There are half as many girls as boys

12 AND … There’s no easy pattern – they are all different AND … There’s no easy pattern – they are all different 1 ST THOUGHTS: There’s loads of numbers! 1 ST THOUGHTS: There’s loads of numbers! What is Data Handling? Some data is harder to interpret … 6K’s bedtimes: 8:30pm, 8:00 pm, 7:45 pm, 9:30 pm, 7:00 pm, 10:00 pm, 7:20 pm, 8:15pm, 7:29 pm, 11:45 pm, 8:50 pm, 8:15 pm, 9:00 pm, 7:18 pm, 9:25 pm, 10:30 pm, 8:18 pm, 9:00 pm, 8:55 pm, 8:40 pm, 7:15 pm, 7:00 pm, 9:32 pm, 7:59 pm, 9:15 pm, 7:10 pm, 9:45 pm, 8:30 pm, 8:25 pm, 9:30 pm Do more people go to bed before or after 9pm? Which is the most popular bedtime: 7 - 8pm or 8 - 9pm? How many pupils in 6K go to bed between 8pm and 9pm? Try these questions about 6K’s bedtimes. Click for the answers. Try these questions about 6K’s bedtimes. Click for the answers. Before! 8 – 9pm 10 How many did you get right? How long did it take? There are so many different numbers, it’s hard to picture … … and even harder to interpret! How many did you get right? How long did it take? There are so many different numbers, it’s hard to picture … … and even harder to interpret!

13 What is Data Handling? Some data is harder to interpret … 6K’s bedtimes: 8:30pm, 8:10 pm, 7:45 pm, 9:30 pm, 7:05 pm, 10:15 pm, 7:20 pm, 8:15pm, 7:29 pm, 11:45 pm, 8:50 pm, 8:15 pm, 9:20 pm, 7:18 pm, 9:25 pm, 10:30 pm, 8:18 pm, 9:10 pm, 8:55 pm, 8:40 pm, 7:15 pm, 7:10 pm, 9:20 pm, 7:59 pm, 9:15 pm, 7:10 pm, 9:45 pm, 8:30 pm, 8:25 pm, 9:55 pm BUT … If you handle this data the right way, you can answer these questions in seconds! BUT … If you handle this data the right way, you can answer these questions in seconds!

14 6K’s bedtimes: 8:30pm, 8:10 pm, 7:45 pm, 9:30 pm, 7:05 pm, 10:15 pm, 7:20 pm, 8:15pm, 7:29 pm, 11:45 pm, 8:50 pm, 8:15 pm, 9:20 pm, 7:18 pm, 9:25 pm, 10:30 pm, 8:18 pm, 9:10 pm, 8:55 pm, 8:40 pm, 7:15 pm, 7:10 pm, 9:20 pm, 7:59 pm, 9:15 pm, 7:10 pm, 9:45 pm, 8:30 pm, 8:25 pm, 9:55 pm What is Data Handling? Organise the data: organise into groups with a tally chart 7 – 8pm8 – 9pm9 – 10pm10-11pm11 – 12pm

15 What is Data Handling? This is what a tally chart does! 7:05 pm 7:10 pm 7:15 pm 7:18 pm 7:20 pm 7:29 pm 7:45 pm 7:59 pm8:15 pm 8:18 pm 8:25 pm 8:30pm 8:40 pm 8:50 pm 8:55 pm 8:10 pm9:10 pm 9:15 pm 9:20 pm 9:25 pm 9:30 pm 9:45 pm 9:55 pm10:15 pm 10:30 pm 11:45 pm 7:05 pm 7:10 pm 7:15 pm 7:18 pm 7:20 pm 7:45 pm, 7:59 pm 7:29 pm 8:15 pm 8:18 pm 8:25 pm 8:30pm 8:40 pm 8:50 pm 8:55 pm 8:10 pm 9:20 pm 8:30pm 9:10 pm 9:15 pm 9:20 pm 9:25 pm 9:30 pm 9:55 pm 10:15 pm 10:30 pm 11:45 pm 9:45 pm

16 What is Data Handling? Display the data: bar chart 6K’s Bedtimes Bedtime Number of pupils 7pm 8pm 9pm 10pm 11pm. to to to to to 8pm 9pm 10pm 11pm Midnight 7:05 pm 7:10 pm 7:15 pm 7:18 pm 7:20 pm 7:45 pm 7:59 pm 7:29 pm 8:15 pm 8:18 pm 8:25 pm 8:30pm 8:40 pm 8:50 pm 8:55 pm 8:10 pm 9:20 pm 8:30pm 9:10 pm 9:15 pm 9:20 pm 9:25 pm 9:30 pm 9:55 pm 10:15 pm 10:30 pm 11:45 pm 9:45 pm

17 Can you get this question in 10 seconds? Click to start. How many pupils in go to bed between 7pm and 8pm? What is Data Handling? Display the data: bar chart 6K’s Bedtimes Bedtime Number of pupils 7pm 8pm 9pm 10pm 11pm. to to to to to 8pm 9pm 10pm 11pm Midnight 9 9 Did you do it in 10 seconds? Easy, isn’t it? Charts and graphs make interpreting E-E-E-E-A-S-Y!

18 If you want to find out some astonishing facts about the world or people around you … then all you need to do is … Step 1. Collect the data eg: using surveys and questionnaires Step 2. Organise & display the data eg: using lists, charts, graphs, diagrams Step 3. Interpret the data What is Data Handling? Recap

19 What is Data Handling? The next step! Now you’ve learned about data handling – why not try some? YOU can become a champion chart-reading achiever! Or a grandiose graph-cruncher! So, if you’re looking for a REALLY EASY WAY to interpret nauseating graph nasties … Why not try the next PowerPoint: “Reading bar charts” ! (School Booster)


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