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Class 5 Computer Worksheet: Algorithms

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

Answer key

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

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