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Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 829 · 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 read a storybook, what comes right after “pick up the book”? (a) read the story (b) close the book (c) open the first page
  2. 2.🔢 To wash your hands, what comes right after “rinse off the soap”? (a) dry them with a towel (b) rub them with soap (c) wet your hands
  3. 3.🔢 To brush your teeth, which is the FIRST step? (a) wet the toothbrush (b) put on toothpaste (c) rinse your mouth (d) brush all your teeth
  4. 4.🔢 To brush your teeth, what comes right after “wet the toothbrush”? (a) rinse your mouth (b) brush all your teeth (c) put on toothpaste
  5. 5.🔢 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
  6. 6.🔢 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
  7. 7.🔢 To read a storybook, what comes right after “open the first page”? (a) pick up the book (b) read the story (c) close the book
  8. 8.🔢 To play with a balloon, which is the LAST step? (a) tie the end (b) blow air into it (c) play with it (d) take a balloon
  9. 9.🔢 To brush your teeth, which do we do first: “rinse your mouth” or “wet the toothbrush”? (a) rinse your mouth (b) wet the toothbrush
  10. 10.🔢 In an algorithm, the steps must be in the right ___. (a) size (b) order (c) font (d) colour
  11. 11.🐞 What do we call a mistake in a program? (a) a sprite (b) a bug (c) a cell (d) a byte
  12. 12.🔢 To plant a seed, what comes right after “cover it with soil”? (a) water it (b) put the seed in (c) dig a small hole
  13. 13.🔢 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
  14. 14.🔢 To play with a balloon, which do we do first: “tie the end” or “play with it”? (a) tie the end (b) play with it
  15. 15.🔢 To read a storybook, which is the FIRST step? (a) open the first page (b) pick up the book (c) read the story (d) close the book
  16. 16.🤖 A computer follows the steps of a program ___. (a) only on Sundays (b) backwards always (c) exactly as written (d) the way it likes
  17. 17.🔢 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
  18. 18.🔢 To read a storybook, which do we do first: “read the story” or “close the book”? (a) read the story (b) close the book
  19. 19.🔢 To plant a seed, which is the LAST step? (a) dig a small hole (b) cover it with soil (c) water it (d) put the seed in
  20. 20.🔧 What is finding and fixing mistakes in a program called? (a) scrolling (b) debugging (c) downloading (d) printing
  21. 21.🔢 To plant a seed, which do we do first: “water it” or “dig a small hole”? (a) water it (b) dig a small hole
  22. 22.🔢 To wash your hands, what comes right after “wet your hands”? (a) dry them with a towel (b) rub them with soap (c) rinse off the soap
  23. 23.🔢 To brush your teeth, what comes right after “put on toothpaste”? (a) rinse your mouth (b) brush all your teeth (c) wet the toothbrush
  24. 24.🔢 To play with a balloon, which do we do first: “tie the end” or “take a balloon”? (a) tie the end (b) take a balloon
  25. 25.🔢 To read a storybook, which is the LAST step? (a) close the book (b) read the story (c) pick up the book (d) open the first page
  26. 26.🔢 To read a storybook, which do we do first: “pick up the book” or “open the first page”? (a) pick up the book (b) open the first page
  27. 27.🔢 To play with a balloon, what comes right after “tie the end”? (a) blow air into it (b) take a balloon (c) play with it
  28. 28.🔢 To play with a balloon, which do we do first: “play with it” or “tie the end”? (a) tie the end (b) play with it
  29. 29.📋 What do we call the steps written in a language a computer understands? (a) a poem (b) a program (c) a painting (d) a password
  30. 30.🔢 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
  31. 31.🔢 To plant a seed, what comes right after “dig a small hole”? (a) put the seed in (b) cover it with soil (c) water it
  32. 32.🔢 To wash your hands, which do we do first: “wet your hands” or “dry them with a towel”? (a) dry them with a towel (b) wet your hands
  33. 33.🔢 To brush your teeth, which do we do first: “put on toothpaste” or “rinse your mouth”? (a) put on toothpaste (b) rinse your mouth
  34. 34.🔢 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
  35. 35.🔢 To play with a balloon, which is the FIRST step? (a) play with it (b) tie the end (c) blow air into it (d) take a balloon
  36. 36.🔢 To wash your hands, what comes right after “rub them with soap”? (a) rinse off the soap (b) dry them with a towel (c) wet your hands
  37. 37.🔢 To play with a balloon, which do we do first: “blow air into it” or “play with it”? (a) play with it (b) blow air into it
  38. 38.🔢 To plant a seed, which is the FIRST step? (a) put the seed in (b) cover it with soil (c) water it (d) dig a small hole
  39. 39.🔢 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
  40. 40.📝 What do we call a list of steps to solve a problem? (a) a pixel (b) a folder (c) an algorithm (d) a mouse

Answer key

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

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