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Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 819 · 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 brush your teeth, what comes right after “wet the toothbrush”? (a) brush all your teeth (b) put on toothpaste (c) rinse your mouth
  2. 2.🔢 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
  3. 3.🔢 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
  4. 4.🔢 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
  5. 5.🗺️ Which of these is an algorithm in everyday life? (a) a cloud (b) a recipe (c) a rainbow (d) a pebble
  6. 6.🔢 To read a storybook, which is the LAST step? (a) open the first page (b) read the story (c) pick up the book (d) close the book
  7. 7.🔢 To play with a balloon, which is the LAST step? (a) take a balloon (b) play with it (c) blow air into it (d) tie the end
  8. 8.🔢 To plant a seed, which is the FIRST step? (a) dig a small hole (b) cover it with soil (c) put the seed in (d) water it
  9. 9.🔢 To play with a balloon, what comes right after “blow air into it”? (a) play with it (b) tie the end (c) take a balloon
  10. 10.📋 What do we call the steps written in a language a computer understands? (a) a poem (b) a password (c) a painting (d) a program
  11. 11.🔢 To brush your teeth, which do we do first: “rinse your mouth” or “put on toothpaste”? (a) put on toothpaste (b) rinse your mouth
  12. 12.🔢 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
  13. 13.🔢 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
  14. 14.🔢 To plant a seed, which do we do first: “cover it with soil” or “water it”? (a) cover it with soil (b) water it
  15. 15.🐞 What do we call a mistake in a program? (a) a cell (b) a byte (c) a bug (d) a sprite
  16. 16.🔢 To wash your hands, what comes right after “rub them with soap”? (a) dry them with a towel (b) wet your hands (c) rinse off the soap
  17. 17.🔢 In an algorithm, the steps must be in the right ___. (a) order (b) font (c) size (d) colour
  18. 18.🔢 To brush your teeth, what comes right after “put on toothpaste”? (a) rinse your mouth (b) wet the toothbrush (c) brush all your teeth
  19. 19.🔢 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
  20. 20.🔢 To brush your teeth, what comes right after “brush all your teeth”? (a) put on toothpaste (b) rinse your mouth (c) wet the toothbrush
  21. 21.🔢 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
  22. 22.🔢 To plant a seed, what comes right after “put the seed in”? (a) cover it with soil (b) water it (c) dig a small hole
  23. 23.🔢 To plant a seed, what comes right after “dig a small hole”? (a) put the seed in (b) water it (c) cover it with soil
  24. 24.🔢 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
  25. 25.🤖 A computer follows the steps of a program ___. (a) the way it likes (b) backwards always (c) exactly as written (d) only on Sundays
  26. 26.📝 What do we call a list of steps to solve a problem? (a) a pixel (b) a mouse (c) a folder (d) an algorithm
  27. 27.🔢 To wash your hands, which do we do first: “rinse off the soap” or “rub them with soap”? (a) rinse off the soap (b) rub them with soap
  28. 28.🔢 To play with a balloon, which is the FIRST step? (a) tie the end (b) take a balloon (c) blow air into it (d) play with it
  29. 29.🔢 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
  30. 30.🔢 To plant a seed, which is the LAST step? (a) cover it with soil (b) put the seed in (c) dig a small hole (d) water it
  31. 31.🔢 To wash your hands, which is the LAST step? (a) rinse off the soap (b) wet your hands (c) rub them with soap (d) dry them with a towel
  32. 32.🔢 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
  33. 33.🔢 To brush your teeth, which do we do first: “wet the toothbrush” or “put on toothpaste”? (a) put on toothpaste (b) wet the toothbrush
  34. 34.🔢 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
  35. 35.🔢 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
  36. 36.🔢 To brush your teeth, which do we do first: “rinse your mouth” or “brush all your teeth”? (a) rinse your mouth (b) brush all your teeth
  37. 37.🔢 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
  38. 38.🔢 To wash your hands, which do we do first: “wet your hands” or “dry them with a towel”? (a) wet your hands (b) dry them with a towel
  39. 39.🔧 What is finding and fixing mistakes in a program called? (a) debugging (b) downloading (c) scrolling (d) printing
  40. 40.🔢 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

Answer key

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

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