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Chunking

Chunking. By Sarah Barron. T he Aim Of The Presentation. The aim of this presentation is to teach others the division method of chunking in 4 simple steps. I hope you understand it! It is called ‘chunking’ because you ‘take easy chunks’ out of the starting number. #1. Say you have this sum:

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Chunking

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  1. Chunking By Sarah Barron

  2. The Aim Of The Presentation The aim of this presentation is to teach others the division method of chunking in 4 simple steps. I hope you understand it! It is called ‘chunking’ because you ‘take easy chunks’ out of the starting number.

  3. #1 • Say you have this sum: • 172 divided by 4. • Write 172 at the top of your page. 172 - 100 / 4 = 25 • Think of an easy multiple of 4 which is close to, but lower than 172 like 100 and write it underneath 172. (This is your first ‘chunk’.) • Next to 100 write… divided by 4 = 25. Then draw a line underneath. (Click mouse to continue.)

  4. #2 • Next subtract 100 from 172. You should get 72. Write 72 underneath. 172 - 100 / 4 = 25 • Think again of an easy multiple of 4 which is close to, but lower than 72, like 40, and write it underneath 72. (This is your second ‘chunk’.) 72 - 40 / 4 = 10 32 • Nearly there!.. • As before write… divided by 4 = 10. Then continue. (Click mouse to continue.)

  5. #3 • Now use your times tables to divide 32 by 4. 172 • You should get 8.So write divided by 4 = 8(This is your third ‘chunk’.) - 100 / 4 = 25 72 - 40 / 4 = 10 • Since 4 X 8 is exactly 32, there won’t be a remainder.(So there won’t be any more chunks.) 32 - 32 / 4 = 8 0 • Last step... (Click mouse to continue.)

  6. #4 • Down the side you should have a 25, 10 and 8. 172 - 100 / 4 =25 Chunk 1 • Add them together and you get your answer! 72 - 40 / 4 =10 Chunk 2 32 - 32 / 4 =8 Chunk 3 • The answer is 43! + 0 43 • So 172 / 4 = 43 (Click mouse to continue.)

  7. Thank you • Thank you for listening. • I hope you enjoyed the presentation and you understood it!

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