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Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 331 · 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 “open the first page”? (a) read the story (b) close the book (c) pick up the book
  2. 2.🔢 To read a storybook, which do we do first: “close the book” or “open the first page”? (a) close the book (b) open the first page
  3. 3.📝 What do we call a list of steps to solve a problem? (a) a folder (b) an algorithm (c) a pixel (d) a mouse
  4. 4.🔢 In an algorithm, the steps must be in the right ___. (a) size (b) order (c) font (d) colour
  5. 5.🐞 What do we call a mistake in a program? (a) a cell (b) a bug (c) a sprite (d) a byte
  6. 6.🔢 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
  7. 7.🔢 To wash your hands, which do we do first: “dry them with a towel” or “rub them with soap”? (a) rub them with soap (b) dry them with a towel
  8. 8.🔢 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
  9. 9.🔢 To play with a balloon, which do we do first: “take a balloon” or “tie the end”? (a) take a balloon (b) tie the end
  10. 10.🔢 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
  11. 11.🔢 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
  12. 12.🔢 To brush your teeth, what comes right after “wet the toothbrush”? (a) rinse your mouth (b) brush all your teeth (c) put on toothpaste
  13. 13.🔢 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
  14. 14.🔢 To brush your teeth, which is the FIRST step? (a) brush all your teeth (b) rinse your mouth (c) put on toothpaste (d) wet the toothbrush
  15. 15.🔢 To wash your hands, which do we do first: “rinse off the soap” or “wet your hands”? (a) wet your hands (b) rinse off the soap
  16. 16.📋 What do we call the steps written in a language a computer understands? (a) a poem (b) a painting (c) a password (d) a program
  17. 17.🔢 To plant a seed, which is the FIRST step? (a) cover it with soil (b) water it (c) put the seed in (d) dig a small hole
  18. 18.🤖 A computer follows the steps of a program ___. (a) exactly as written (b) only on Sundays (c) backwards always (d) the way it likes
  19. 19.🔢 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
  20. 20.🔢 To plant a seed, which do we do first: “dig a small hole” or “put the seed in”? (a) dig a small hole (b) put the seed in
  21. 21.🔢 To brush your teeth, what comes right after “put on toothpaste”? (a) brush all your teeth (b) wet the toothbrush (c) rinse your mouth
  22. 22.🔢 To read a storybook, what comes right after “read the story”? (a) close the book (b) open the first page (c) pick up the book
  23. 23.🔢 To read a storybook, which is the FIRST step? (a) close the book (b) pick up the book (c) read the story (d) open the first page
  24. 24.🔢 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
  25. 25.🔢 To plant a seed, which do we do first: “dig a small hole” or “cover it with soil”? (a) dig a small hole (b) cover it with soil
  26. 26.🔢 To plant a seed, what comes right after “cover it with soil”? (a) put the seed in (b) dig a small hole (c) water it
  27. 27.🔢 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
  28. 28.🔢 To brush your teeth, which is the LAST step? (a) wet the toothbrush (b) put on toothpaste (c) brush all your teeth (d) rinse your mouth
  29. 29.🔢 To plant a seed, what comes right after “dig a small hole”? (a) cover it with soil (b) water it (c) put the seed in
  30. 30.🔢 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
  31. 31.🔢 To brush your teeth, what comes right after “brush all your teeth”? (a) put on toothpaste (b) rinse your mouth (c) wet the toothbrush
  32. 32.🔢 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
  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 wash your hands, what comes right after “rub them with soap”? (a) rinse off the soap (b) wet your hands (c) dry them with a towel
  35. 35.🔢 To play with a balloon, which is the FIRST step? (a) take a balloon (b) blow air into it (c) tie the end (d) play with it
  36. 36.🔢 To wash your hands, which do we do first: “dry them with a towel” or “rinse off the soap”? (a) dry them with a towel (b) rinse off the soap
  37. 37.🔢 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
  38. 38.🔢 To wash your hands, what comes right after “rinse off the soap”? (a) dry them with a towel (b) wet your hands (c) rub them with soap
  39. 39.🔢 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
  40. 40.🔢 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

Answer key

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

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