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Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 118 · 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 play with a balloon, which do we do first: “blow air into it” or “take a balloon”? (a) blow air into it (b) take a balloon
  2. 2.🔢 To brush your teeth, which do we do first: “rinse your mouth” or “wet the toothbrush”? (a) wet the toothbrush (b) rinse your mouth
  3. 3.🔢 To brush your teeth, what comes right after “brush all your teeth”? (a) rinse your mouth (b) put on toothpaste (c) wet the toothbrush
  4. 4.🔢 To plant a seed, which do we do first: “put the seed in” or “dig a small hole”? (a) dig a small hole (b) put the seed in
  5. 5.🔢 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
  6. 6.🐞 What do we call a mistake in a program? (a) a bug (b) a sprite (c) a byte (d) a cell
  7. 7.🔢 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
  8. 8.🔢 To play with a balloon, which do we do first: “take a balloon” or “blow air into it”? (a) blow air into it (b) take a balloon
  9. 9.🔢 To plant a seed, which is the FIRST step? (a) water it (b) cover it with soil (c) put the seed in (d) dig a small hole
  10. 10.🔢 To plant a seed, what comes right after “dig a small hole”? (a) cover it with soil (b) put the seed in (c) water it
  11. 11.🔢 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
  12. 12.🔢 In an algorithm, the steps must be in the right ___. (a) order (b) colour (c) size (d) font
  13. 13.🔢 To plant a seed, which is the LAST step? (a) put the seed in (b) water it (c) dig a small hole (d) cover it with soil
  14. 14.🔢 To brush your teeth, what comes right after “wet the toothbrush”? (a) brush all your teeth (b) put on toothpaste (c) rinse your mouth
  15. 15.🔢 To plant a seed, what comes right after “cover it with soil”? (a) dig a small hole (b) water it (c) put the seed in
  16. 16.🔢 To wash your hands, which do we do first: “dry them with a towel” or “wet your hands”? (a) wet your hands (b) dry them with a towel
  17. 17.🔢 To plant a seed, which do we do first: “water it” or “cover it with soil”? (a) cover it with soil (b) water it
  18. 18.🔢 To play with a balloon, which is the FIRST step? (a) play with it (b) take a balloon (c) tie the end (d) blow air into it
  19. 19.🔢 To plant a seed, which do we do first: “cover it with soil” or “water it”? (a) water it (b) cover it with soil
  20. 20.🔢 To read a storybook, which is the FIRST step? (a) pick up the book (b) open the first page (c) close the book (d) read the story
  21. 21.🔢 To play with a balloon, what comes right after “take a balloon”? (a) blow air into it (b) play with it (c) tie the end
  22. 22.🔢 To plant a seed, what comes right after “put the seed in”? (a) dig a small hole (b) water it (c) cover it with soil
  23. 23.🔢 To read a storybook, which do we do first: “pick up the book” or “open the first page”? (a) open the first page (b) pick up the book
  24. 24.🔧 What is finding and fixing mistakes in a program called? (a) printing (b) scrolling (c) downloading (d) debugging
  25. 25.🤖 A computer follows the steps of a program ___. (a) backwards always (b) exactly as written (c) the way it likes (d) only on Sundays
  26. 26.🔢 To read a storybook, which do we do first: “read the story” or “open the first page”? (a) read the story (b) open the first page
  27. 27.🔢 To wash your hands, which is the LAST step? (a) dry them with a towel (b) wet your hands (c) rub them with soap (d) rinse off the soap
  28. 28.🔢 To wash your hands, which do we do first: “wet your hands” or “rinse off the soap”? (a) rinse off the soap (b) wet your hands
  29. 29.🔢 To read a storybook, which do we do first: “pick up the book” or “read the story”? (a) pick up the book (b) read the story
  30. 30.🔢 To plant a seed, which do we do first: “dig a small hole” or “water it”? (a) water it (b) dig a small hole
  31. 31.🔢 To play with a balloon, which do we do first: “take a balloon” or “play with it”? (a) take a balloon (b) play with it
  32. 32.🔢 To wash your hands, which do we do first: “rub them with soap” or “rinse off the soap”? (a) rub them with soap (b) rinse off the soap
  33. 33.🔢 To read a storybook, which do we do first: “close the book” or “read the story”? (a) close the book (b) read the story
  34. 34.🔢 To read a storybook, what comes right after “open the first page”? (a) pick up the book (b) close the book (c) read the story
  35. 35.🔢 To read a storybook, which do we do first: “open the first page” or “read the story”? (a) read the story (b) open the first page
  36. 36.🔢 To wash your hands, which is the FIRST step? (a) rub them with soap (b) wet your hands (c) rinse off the soap (d) dry them with a towel
  37. 37.🔢 To wash your hands, which do we do first: “rinse off the soap” or “dry them with a towel”? (a) rinse off the soap (b) dry them with a towel
  38. 38.🔢 To wash your hands, what comes right after “wet your hands”? (a) rinse off the soap (b) rub them with soap (c) dry them with a towel
  39. 39.🗺️ Which of these is an algorithm in everyday life? (a) a pebble (b) a cloud (c) a recipe (d) a rainbow
  40. 40.🔢 To play with a balloon, which do we do first: “play with it” or “take a balloon”? (a) take a balloon (b) play with it

Answer key

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

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