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Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 39 · 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.

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

Answer key

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

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