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What is Data Handling? An Introduction

What is Data Handling? An Introduction. Introduction to Data Handling . Bridging the gap to. L3. L4. Teacher Notes This resource is …. - A simple overview of Data Handling

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What is Data Handling? An Introduction

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  1. What is Data Handling?An Introduction Introduction to Data Handling Bridging the gap to L3 L4

  2. Teacher NotesThis resource is … - A simple overview of Data Handling What is data handling? Why do we do it? What IS data? The slideshow aims to connect the 3 stages of data handling: collection, presentation and interpretation, with the main focus on interpretation, using examples of charts/graphs. - An ideal introduction to ‘Reading bar charts’ - in the School Booster resource at www/bgfl.org/mathsbooster - User-friendly - With clear, stepwise examples and answers. - User-controlled - You can control how fast or slow you go using the mouse keys.

  3. Teacher NotesHow to use this resource You can control how fast or slow you go, using: FORWARD:OR OREnter OR Left-hand mouse BACK:OR ORBack Space TO START SLIDESHOW: F5 OR Slide Show > View Show TO END SLIDESHOW: Escape

  4. 1 in 30 Birmingham Pupils is a Giant! A Year 6 survey in the city has made the astonishing finding that 1 in 30 Year 6 pupils are over 2 metres tall … Brum Schools - Hottest of the Century! Temperature data collected over the last 100 years has revealed the hottest place you can be for a February is … 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 … England’s Worse Sleepyheads Found in Midlands! A recent survey by Beds R Us has discovered that Birmingham Year 6 pupils go to bed later than anywhere else in the country … … and … Do you think the headlines are always accurate? Do you believe them?! What data do you think was collected? (What IS data?) But where did these headlines come from?

  5. … 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) What is Data Handling? First things first – what IS data? … 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 … 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) 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

  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 words Data can be numbers

  7. What is Data Handling? Where did the headlines come from? 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) 1 in 30 pupils in Birmingham is a Giant! A Year 6 survey in the city has made the astonishing finding that 1 in 30 Year 6 pupils are over 2 metres tall … 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) 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) 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 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) … and organised it so they could ... 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) 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 …interpret the data like this … Of course, not all conclusions are sensible!!!

  8. “1 in 30 Birmingham Pupils is a Giant!” What is Data Handling? Recap: 3 Steps in Data Handling Interpret the data Explain it! … Say what it means! Draw some conclusions! Organise & display the data So it’s easier to see a meaning - lists … tables … charts … graphs … diagrams Height Number less than 150cm high 9 less than 150cm high 20 more than 200cm high 1 30 1. Collect the data Get the information you need 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. What is Data Handling? Recap: 3 Steps in Data Handling Height Number less than 150cm high 9 less than 150cm high 20 more than 200cm high 1 30 Step 1. Collect the data Step 2. Organise & display the data Step 3. Interpret the data 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 “1 in 30 Birmingham Pupils is a Giant!”

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

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

  12. 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 1ST THOUGHTS: There’s loads of numbers! 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! AND … There’s no easy pattern – they are all different Before! Try these questions about 6K’s bedtimes. Click for the answers. Do more people go to bed before or after 9pm? 8 – 9pm Which is the most popular bedtime: 7 - 8pm or 8 - 9pm? How many pupils in 6K go to bed between 8pm and 9pm? 10

  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!

  14. What is Data Handling? Organise the data: organise into groups with a tally chart 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

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

  16. 10 9 8 7 6 5 4 3 2 1 0 6K’s Bedtimes Number of pupils 7pm 8pm 9pm 10pm 11pm . to to to to to 8pm 9pm 10pm 11pm Midnight Bedtime What is Data Handling? Display the data: bar chart 8:10 pm 7:05 pm 8:15 pm 9:10 pm 7:10 pm 8:15 pm 9:15 pm 7:10 pm 8:18 pm 9:20 pm 7:15 pm 8:25 pm 9:20 pm 7:18 pm 8:30pm 9:25 pm 7:20 pm 8:30pm 9:30 pm 7:29 pm 8:40 pm 10:15 pm 9:45 pm 7:45 pm 8:50 pm 7:59 pm 9:55 pm 8:55 pm 11:45 pm 10:30 pm

  17. 10 9 8 7 6 5 4 3 2 1 0 6K’s Bedtimes Number of pupils 7pm 8pm 9pm 10pm 11pm . to to to to to 8pm 9pm 10pm 11pm Midnight Bedtime What is Data Handling? Display the data: bar chart Charts and graphs make interpreting E-E-E-E-A-S-Y! Did you do it in 10 seconds? Easy, isn’t it? 9 How many pupils in go to bed between 7pm and 8pm? Can you get this question in 10 seconds? Click to start.

  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-readingachiever! Or a grandiosegraph-cruncher! So, if you’re looking for a REALLY EASY WAY to interpret nauseatinggraphnasties … Why not try the next PowerPoint: “Reading bar charts” ! www.bgfl.org/mathsbooster (School Booster)

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