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Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 460 · 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 do we do first: “rub them with soap” or “rinse off the soap”? (a) rub them with soap (b) rinse off the soap
  2. 2.🐞 What do we call a mistake in a program? (a) a sprite (b) a cell (c) a bug (d) a byte
  3. 3.🔢 To play with a balloon, what comes right after “blow air into it”? (a) take a balloon (b) play with it (c) tie the end
  4. 4.🔢 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
  5. 5.🔢 To wash your hands, which is the FIRST step? (a) wet your hands (b) rub them with soap (c) rinse off the soap (d) dry them with a towel
  6. 6.🤖 A computer follows the steps of a program ___. (a) backwards always (b) only on Sundays (c) the way it likes (d) exactly as written
  7. 7.🔢 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
  8. 8.🔢 In an algorithm, the steps must be in the right ___. (a) font (b) order (c) size (d) colour
  9. 9.🔢 To wash your hands, which is the LAST step? (a) rub them with soap (b) wet your hands (c) rinse off the soap (d) dry them with a towel
  10. 10.🔢 To brush your teeth, what comes right after “wet the toothbrush”? (a) rinse your mouth (b) put on toothpaste (c) brush all your teeth
  11. 11.🔢 To read a storybook, which do we do first: “read the story” or “close the book”? (a) read the story (b) close the book
  12. 12.🔢 To brush your teeth, which do we do first: “put on toothpaste” or “rinse your mouth”? (a) put on toothpaste (b) rinse your mouth
  13. 13.🔢 To plant a seed, what comes right after “put the seed in”? (a) dig a small hole (b) water it (c) cover it with soil
  14. 14.🔢 To brush your teeth, what comes right after “put on toothpaste”? (a) rinse your mouth (b) wet the toothbrush (c) brush all your teeth
  15. 15.🔧 What is finding and fixing mistakes in a program called? (a) scrolling (b) downloading (c) debugging (d) printing
  16. 16.🔢 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
  17. 17.📝 What do we call a list of steps to solve a problem? (a) a folder (b) a mouse (c) an algorithm (d) a pixel
  18. 18.🔢 To wash your hands, which do we do first: “wet your hands” or “rinse off the soap”? (a) wet your hands (b) rinse off the soap
  19. 19.🔢 To brush your teeth, which do we do first: “wet the toothbrush” or “put on toothpaste”? (a) put on toothpaste (b) wet the toothbrush
  20. 20.🔢 To plant a seed, which is the LAST step? (a) cover it with soil (b) water it (c) put the seed in (d) dig a small hole
  21. 21.🔢 To plant a seed, which do we do first: “water it” or “cover it with soil”? (a) cover it with soil (b) water it
  22. 22.🗺️ Which of these is an algorithm in everyday life? (a) a pebble (b) a cloud (c) a recipe (d) a rainbow
  23. 23.🔢 To plant a seed, which do we do first: “cover it with soil” or “water it”? (a) water it (b) cover it with soil
  24. 24.🔢 To read a storybook, which is the LAST step? (a) open the first page (b) read the story (c) close the book (d) pick up the book
  25. 25.🔢 To wash your hands, what comes right after “rub them with soap”? (a) wet your hands (b) dry them with a towel (c) rinse off the soap
  26. 26.📋 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
  27. 27.🔢 To plant a seed, which do we do first: “put the seed in” or “water it”? (a) put the seed in (b) water it
  28. 28.🔢 To brush your teeth, which is the FIRST step? (a) brush all your teeth (b) put on toothpaste (c) wet the toothbrush (d) rinse your mouth
  29. 29.🔢 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
  30. 30.🔢 To plant a seed, which do we do first: “water it” or “put the seed in”? (a) put the seed in (b) water it
  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 play with a balloon, what comes right after “tie the end”? (a) take a balloon (b) play with it (c) blow air into it
  33. 33.🔢 To plant a seed, which is the FIRST step? (a) water it (b) dig a small hole (c) cover it with soil (d) put the seed in
  34. 34.🔢 To plant a seed, which do we do first: “dig a small hole” or “cover it with soil”? (a) cover it with soil (b) dig a small hole
  35. 35.🔢 To read a storybook, which is the FIRST step? (a) open the first page (b) close the book (c) read the story (d) pick up the book
  36. 36.🔢 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
  37. 37.🔢 To read a storybook, what comes right after “pick up the book”? (a) open the first page (b) read the story (c) close the book
  38. 38.🔢 To plant a seed, which do we do first: “water it” or “dig a small hole”? (a) water it (b) dig a small hole
  39. 39.🔢 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
  40. 40.🔢 To read a storybook, what comes right after “read the story”? (a) pick up the book (b) open the first page (c) close the book

Answer key

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

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