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Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 761 · 40 questions
TalentJR

Remember (First, next, last): An algorithm = clear steps in the right order; a program = an algorithm written for a computer. To order steps, ask: what must happen before this step can happen? A mistake is a bug; finding and fixing it is debugging.

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  1. 1.🔢 To wash your hands, what comes right after “rub them with soap”? (a) wet your hands (b) dry them with a towel (c) rinse off the soap
  2. 2.🔢 To wash your hands, what comes right after “rinse off the soap”? (a) wet your hands (b) dry them with a towel (c) rub them with soap
  3. 3.🔢 To play with a balloon, which do we do first: “tie the end” or “blow air into it”? (a) tie the end (b) blow air into it
  4. 4.🔢 To play with a balloon, what comes right after “blow air into it”? (a) tie the end (b) take a balloon (c) play with it
  5. 5.🔢 To read a storybook, which do we do first: “pick up the book” or “read the story”? (a) read the story (b) pick up the book
  6. 6.🔢 To plant a seed, which is the LAST step? (a) dig a small hole (b) water it (c) put the seed in (d) cover it with soil
  7. 7.🔢 To play with a balloon, which do we do first: “tie the end” or “play with it”? (a) play with it (b) tie the end
  8. 8.🔢 To wash your hands, what comes right after “wet your hands”? (a) rub them with soap (b) rinse off the soap (c) dry them with a towel
  9. 9.🔢 To plant a seed, what comes right after “cover it with soil”? (a) water it (b) dig a small hole (c) put the seed in
  10. 10.🔢 To brush your teeth, which is the LAST step? (a) wet the toothbrush (b) rinse your mouth (c) put on toothpaste (d) brush all your teeth
  11. 11.📝 What do we call a list of steps to solve a problem? (a) a pixel (b) a folder (c) an algorithm (d) a mouse
  12. 12.🔢 To read a storybook, what comes right after “pick up the book”? (a) open the first page (b) read the story (c) close the book
  13. 13.🤖 A computer follows the steps of a program ___. (a) backwards always (b) only on Sundays (c) exactly as written (d) the way it likes
  14. 14.🔢 To brush your teeth, which do we do first: “put on toothpaste” or “brush all your teeth”? (a) put on toothpaste (b) brush all your teeth
  15. 15.🔢 To wash your hands, which is the LAST step? (a) wet your hands (b) dry them with a towel (c) rub them with soap (d) rinse off the soap
  16. 16.🐞 What do we call a mistake in a program? (a) a bug (b) a cell (c) a sprite (d) a byte
  17. 17.🔢 To brush your teeth, which do we do first: “rinse your mouth” or “wet the toothbrush”? (a) rinse your mouth (b) wet the toothbrush
  18. 18.🔢 To brush your teeth, what comes right after “brush all your teeth”? (a) wet the toothbrush (b) rinse your mouth (c) put on toothpaste
  19. 19.🔢 To wash your hands, which is the FIRST step? (a) dry them with a towel (b) rub them with soap (c) rinse off the soap (d) wet your hands
  20. 20.🔢 To play with a balloon, which is the LAST step? (a) take a balloon (b) tie the end (c) blow air into it (d) play with it
  21. 21.🔢 To brush your teeth, which do we do first: “wet the toothbrush” or “rinse your mouth”? (a) wet the toothbrush (b) rinse your mouth
  22. 22.🔢 To brush your teeth, what comes right after “put on toothpaste”? (a) wet the toothbrush (b) rinse your mouth (c) brush all your teeth
  23. 23.🔧 What is finding and fixing mistakes in a program called? (a) downloading (b) debugging (c) printing (d) scrolling
  24. 24.🔢 To plant a seed, which is the FIRST step? (a) dig a small hole (b) water it (c) put the seed in (d) cover it with soil
  25. 25.🔢 To brush your teeth, which do we do first: “brush all your teeth” or “rinse your mouth”? (a) rinse your mouth (b) brush all your teeth
  26. 26.🔢 To plant a seed, which do we do first: “cover it with soil” or “put the seed in”? (a) put the seed in (b) cover it with soil
  27. 27.🔢 To plant a seed, which do we do first: “cover it with soil” or “dig a small hole”? (a) dig a small hole (b) cover it with soil
  28. 28.🔢 To read a storybook, which is the LAST step? (a) open the first page (b) close the book (c) pick up the book (d) read the story
  29. 29.🔢 To brush your teeth, what comes right after “wet the toothbrush”? (a) rinse your mouth (b) brush all your teeth (c) put on toothpaste
  30. 30.🔢 To brush your teeth, which is the FIRST step? (a) put on toothpaste (b) rinse your mouth (c) wet the toothbrush (d) brush all your teeth
  31. 31.🔢 To plant a seed, which do we do first: “put the seed in” or “water it”? (a) put the seed in (b) water it
  32. 32.🔢 To read a storybook, which is the FIRST step? (a) read the story (b) close the book (c) open the first page (d) pick up the book
  33. 33.🔢 To brush your teeth, which do we do first: “brush all your teeth” or “wet the toothbrush”? (a) brush all your teeth (b) wet the toothbrush
  34. 34.🔢 To plant a seed, which do we do first: “dig a small hole” or “cover it with soil”? (a) cover it with soil (b) dig a small hole
  35. 35.🔢 To plant a seed, what comes right after “put the seed in”? (a) water it (b) dig a small hole (c) cover it with soil
  36. 36.🔢 To wash your hands, which do we do first: “dry them with a towel” or “rub them with soap”? (a) dry them with a towel (b) rub them with soap
  37. 37.🗺️ Which of these is an algorithm in everyday life? (a) a recipe (b) a pebble (c) a rainbow (d) a cloud
  38. 38.🔢 To play with a balloon, what comes right after “take a balloon”? (a) play with it (b) blow air into it (c) tie the end
  39. 39.🔢 To read a storybook, what comes right after “read the story”? (a) close the book (b) pick up the book (c) open the first page
  40. 40.🔢 In an algorithm, the steps must be in the right ___. (a) size (b) colour (c) font (d) order

Answer key

  1. rinse off the soap
  2. dry them with a towel
  3. blow air into it
  4. tie the end
  5. pick up the book
  6. water it
  7. tie the end
  8. rub them with soap
  9. water it
  10. rinse your mouth
  11. an algorithm
  12. open the first page
  13. exactly as written
  14. put on toothpaste
  15. dry them with a towel
  16. a bug
  17. wet the toothbrush
  18. rinse your mouth
  19. wet your hands
  20. play with it
  21. wet the toothbrush
  22. brush all your teeth
  23. debugging
  24. dig a small hole
  25. brush all your teeth
  26. put the seed in
  27. dig a small hole
  28. close the book
  29. put on toothpaste
  30. wet the toothbrush
  31. put the seed in
  32. pick up the book
  33. wet the toothbrush
  34. dig a small hole
  35. cover it with soil
  36. rub them with soap
  37. a recipe
  38. blow air into it
  39. close the book
  40. order

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