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Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 705 · 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, which do we do first: “brush all your teeth” or “rinse your mouth”? (a) brush all your teeth (b) rinse your mouth
  2. 2.🐞 What do we call a mistake in a program? (a) a byte (b) a cell (c) a sprite (d) a bug
  3. 3.🔢 To read a storybook, which is the LAST step? (a) read the story (b) close the book (c) pick up the book (d) open the first page
  4. 4.📝 What do we call a list of steps to solve a problem? (a) a pixel (b) a folder (c) an algorithm (d) a mouse
  5. 5.🔢 To brush your teeth, which do we do first: “put on toothpaste” or “wet the toothbrush”? (a) put on toothpaste (b) wet the toothbrush
  6. 6.🔧 What is finding and fixing mistakes in a program called? (a) debugging (b) scrolling (c) printing (d) downloading
  7. 7.🔢 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
  8. 8.🔢 To brush your teeth, what comes right after “put on toothpaste”? (a) rinse your mouth (b) brush all your teeth (c) wet the toothbrush
  9. 9.🔢 To read a storybook, which do we do first: “pick up the book” or “open the first page”? (a) open the first page (b) pick up the book
  10. 10.📋 What do we call the steps written in a language a computer understands? (a) a program (b) a painting (c) a password (d) a poem
  11. 11.🔢 To wash your hands, which do we do first: “rub them with soap” or “dry them with a towel”? (a) rub them with soap (b) dry them with a towel
  12. 12.🔢 To read a storybook, what comes right after “pick up the book”? (a) close the book (b) read the story (c) open the first page
  13. 13.🔢 To wash your hands, which is the FIRST step? (a) dry them with a towel (b) rub them with soap (c) rinse off the soap (d) wet your hands
  14. 14.🔢 To plant a seed, which do we do first: “put the seed in” or “cover it with soil”? (a) cover it with soil (b) put the seed in
  15. 15.🔢 To wash your hands, which is the LAST step? (a) rinse off the soap (b) rub them with soap (c) dry them with a towel (d) wet your hands
  16. 16.🤖 A computer follows the steps of a program ___. (a) backwards always (b) exactly as written (c) only on Sundays (d) the way it likes
  17. 17.🔢 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
  18. 18.🔢 To play with a balloon, what comes right after “blow air into it”? (a) tie the end (b) play with it (c) take a balloon
  19. 19.🗺️ Which of these is an algorithm in everyday life? (a) a pebble (b) a recipe (c) a rainbow (d) a cloud
  20. 20.🔢 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
  21. 21.🔢 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
  22. 22.🔢 To plant a seed, which do we do first: “cover it with soil” or “water it”? (a) cover it with soil (b) water it
  23. 23.🔢 To plant a seed, which is the FIRST step? (a) water it (b) cover it with soil (c) put the seed in (d) dig a small hole
  24. 24.🔢 To play with a balloon, what comes right after “take a balloon”? (a) tie the end (b) blow air into it (c) play with it
  25. 25.🔢 To read a storybook, which do we do first: “open the first page” or “read the story”? (a) open the first page (b) read the story
  26. 26.🔢 To plant a seed, what comes right after “cover it with soil”? (a) water it (b) dig a small hole (c) put the seed in
  27. 27.🔢 To plant a seed, which do we do first: “put the seed in” or “water it”? (a) water it (b) put the seed in
  28. 28.🔢 To wash your hands, what comes right after “wet your hands”? (a) rub them with soap (b) dry them with a towel (c) rinse off the soap
  29. 29.🔢 To read a storybook, which is the FIRST step? (a) open the first page (b) read the story (c) close the book (d) pick up the book
  30. 30.🔢 In an algorithm, the steps must be in the right ___. (a) colour (b) order (c) font (d) size
  31. 31.🔢 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
  32. 32.🔢 To play with a balloon, which is the LAST step? (a) take a balloon (b) play with it (c) tie the end (d) blow air into it
  33. 33.🔢 To wash your hands, which do we do first: “dry them with a towel” or “wet your hands”? (a) dry them with a towel (b) wet your hands
  34. 34.🔢 To brush your teeth, which is the FIRST step? (a) wet the toothbrush (b) brush all your teeth (c) put on toothpaste (d) rinse your mouth
  35. 35.🔢 To brush your teeth, what comes right after “brush all your teeth”? (a) put on toothpaste (b) wet the toothbrush (c) rinse your mouth
  36. 36.🔢 To brush your teeth, which do we do first: “brush all your teeth” or “put on toothpaste”? (a) brush all your teeth (b) put on toothpaste
  37. 37.🔢 To brush your teeth, which do we do first: “rinse your mouth” or “wet the toothbrush”? (a) rinse your mouth (b) wet the toothbrush
  38. 38.🔢 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
  39. 39.🔢 To plant a seed, what comes right after “put the seed in”? (a) water it (b) dig a small hole (c) cover it with soil
  40. 40.🔢 To brush your teeth, what comes right after “wet the toothbrush”? (a) put on toothpaste (b) rinse your mouth (c) brush all your teeth

Answer key

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

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