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Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 590 · 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, which is the LAST step? (a) wet your hands (b) rinse off the soap (c) rub them with soap (d) dry them with a towel
  2. 2.🗺️ Which of these is an algorithm in everyday life? (a) a cloud (b) a rainbow (c) a recipe (d) a pebble
  3. 3.🔢 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
  4. 4.🔢 To brush your teeth, which is the LAST step? (a) rinse your mouth (b) brush all your teeth (c) put on toothpaste (d) wet the toothbrush
  5. 5.🔢 To read a storybook, which do we do first: “close the book” or “pick up the book”? (a) pick up the book (b) close the book
  6. 6.🐞 What do we call a mistake in a program? (a) a cell (b) a bug (c) a sprite (d) a byte
  7. 7.📋 What do we call the steps written in a language a computer understands? (a) a password (b) a painting (c) a poem (d) a program
  8. 8.🤖 A computer follows the steps of a program ___. (a) exactly as written (b) backwards always (c) only on Sundays (d) the way it likes
  9. 9.🔢 To brush your teeth, what comes right after “wet the toothbrush”? (a) brush all your teeth (b) put on toothpaste (c) rinse your mouth
  10. 10.🔢 In an algorithm, the steps must be in the right ___. (a) size (b) order (c) font (d) colour
  11. 11.🔢 To read a storybook, which do we do first: “close the book” or “read the story”? (a) close the book (b) read the story
  12. 12.🔢 To plant a seed, which is the FIRST step? (a) water it (b) dig a small hole (c) put the seed in (d) cover it with soil
  13. 13.🔢 To plant a seed, which is the LAST step? (a) cover it with soil (b) dig a small hole (c) put the seed in (d) water it
  14. 14.🔢 To play with a balloon, what comes right after “take a balloon”? (a) play with it (b) tie the end (c) blow air into it
  15. 15.🔢 To brush your teeth, which do we do first: “rinse your mouth” or “brush all your teeth”? (a) brush all your teeth (b) rinse your mouth
  16. 16.🔢 To wash your hands, which do we do first: “rinse off the soap” or “dry them with a towel”? (a) dry them with a towel (b) rinse off the soap
  17. 17.🔢 To wash your hands, what comes right after “wet your hands”? (a) rub them with soap (b) dry them with a towel (c) rinse off the soap
  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, what comes right after “rinse off the soap”? (a) rub them with soap (b) wet your hands (c) dry them with a towel
  20. 20.🔢 To read a storybook, which do we do first: “pick up the book” or “close the book”? (a) close the book (b) pick up the book
  21. 21.🔢 To brush your teeth, which is the FIRST step? (a) rinse your mouth (b) put on toothpaste (c) wet the toothbrush (d) brush all your teeth
  22. 22.🔢 To read a storybook, which is the LAST step? (a) read the story (b) close the book (c) open the first page (d) pick up the book
  23. 23.🔢 To plant a seed, which do we do first: “cover it with soil” or “put the seed in”? (a) cover it with soil (b) put the seed in
  24. 24.🔢 To brush your teeth, which do we do first: “put on toothpaste” or “brush all your teeth”? (a) brush all your teeth (b) put on toothpaste
  25. 25.🔢 To plant a seed, which do we do first: “cover it with soil” or “water it”? (a) water it (b) cover it with soil
  26. 26.🔢 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
  27. 27.🔢 To play with a balloon, which is the LAST step? (a) play with it (b) tie the end (c) blow air into it (d) take a balloon
  28. 28.🔢 To read a storybook, what comes right after “open the first page”? (a) close the book (b) pick up the book (c) read the story
  29. 29.🔢 To wash your hands, which do we do first: “wet your hands” or “rub them with soap”? (a) wet your hands (b) rub them with soap
  30. 30.🔢 To read a storybook, what comes right after “read the story”? (a) open the first page (b) pick up the book (c) close the book
  31. 31.🔢 To play with a balloon, which do we do first: “play with it” or “tie the end”? (a) play with it (b) tie the end
  32. 32.🔢 To brush your teeth, which do we do first: “put on toothpaste” or “rinse your mouth”? (a) rinse your mouth (b) put on toothpaste
  33. 33.🔢 To plant a seed, what comes right after “put the seed in”? (a) dig a small hole (b) cover it with soil (c) water it
  34. 34.🔢 To play with a balloon, which do we do first: “blow air into it” or “play with it”? (a) blow air into it (b) play with it
  35. 35.🔧 What is finding and fixing mistakes in a program called? (a) scrolling (b) printing (c) debugging (d) downloading
  36. 36.🔢 To brush your teeth, which do we do first: “put on toothpaste” or “wet the toothbrush”? (a) wet the toothbrush (b) put on toothpaste
  37. 37.🔢 To read a storybook, which is the FIRST step? (a) open the first page (b) read the story (c) close the book (d) pick up the book
  38. 38.🔢 To plant a seed, which do we do first: “put the seed in” or “dig a small hole”? (a) put the seed in (b) dig a small hole
  39. 39.🔢 To plant a seed, which do we do first: “water it” or “cover it with soil”? (a) water it (b) cover it with soil
  40. 40.🔢 To read a storybook, which do we do first: “read the story” or “close the book”? (a) close the book (b) read the story

Answer key

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

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