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Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 621 · 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 “pick up the book”? (a) read the story (b) close the book (c) open the first page
  2. 2.🐞 What do we call a mistake in a program? (a) a cell (b) a byte (c) a sprite (d) a bug
  3. 3.🔢 To plant a seed, what comes right after “dig a small hole”? (a) water it (b) cover it with soil (c) put the seed in
  4. 4.🔢 To wash your hands, which do we do first: “wet your hands” or “rub them with soap”? (a) rub them with soap (b) wet your hands
  5. 5.🔢 To read a storybook, what comes right after “read the story”? (a) open the first page (b) close the book (c) pick up the book
  6. 6.🔢 To brush your teeth, what comes right after “put on toothpaste”? (a) rinse your mouth (b) wet the toothbrush (c) brush all your teeth
  7. 7.🔢 To brush your teeth, which do we do first: “put on toothpaste” or “wet the toothbrush”? (a) wet the toothbrush (b) put on toothpaste
  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 wash your hands, which do we do first: “dry them with a towel” or “rub them with soap”? (a) dry them with a towel (b) rub them with soap
  10. 10.🔢 To play with a balloon, which do we do first: “blow air into it” or “play with it”? (a) blow air into it (b) play with it
  11. 11.🔢 In an algorithm, the steps must be in the right ___. (a) colour (b) font (c) size (d) order
  12. 12.🔢 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
  13. 13.🔢 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
  14. 14.🔢 To read a storybook, which is the LAST step? (a) pick up the book (b) close the book (c) open the first page (d) read the story
  15. 15.🔢 To wash your hands, what comes right after “rub them with soap”? (a) wet your hands (b) rinse off the soap (c) dry them with a towel
  16. 16.🔢 To play with a balloon, which is the FIRST step? (a) blow air into it (b) play with it (c) tie the end (d) take a balloon
  17. 17.🔢 To wash your hands, which do we do first: “rub them with soap” or “wet your hands”? (a) wet your hands (b) rub them with soap
  18. 18.🗺️ Which of these is an algorithm in everyday life? (a) a pebble (b) a cloud (c) a recipe (d) a rainbow
  19. 19.🔧 What is finding and fixing mistakes in a program called? (a) printing (b) scrolling (c) downloading (d) debugging
  20. 20.🔢 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
  21. 21.🔢 To brush your teeth, which do we do first: “put on toothpaste” or “rinse your mouth”? (a) put on toothpaste (b) rinse your mouth
  22. 22.🔢 To brush your teeth, which do we do first: “wet the toothbrush” or “rinse your mouth”? (a) wet the toothbrush (b) rinse your mouth
  23. 23.🔢 To brush your teeth, which is the LAST step? (a) brush all your teeth (b) put on toothpaste (c) wet the toothbrush (d) rinse your mouth
  24. 24.🔢 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
  25. 25.🔢 To read a storybook, which is the FIRST step? (a) open the first page (b) read the story (c) pick up the book (d) close the book
  26. 26.🔢 To read a storybook, which do we do first: “pick up the book” or “open the first page”? (a) pick up the book (b) open the first page
  27. 27.🤖 A computer follows the steps of a program ___. (a) only on Sundays (b) exactly as written (c) backwards always (d) the way it likes
  28. 28.🔢 To plant a seed, which do we do first: “cover it with soil” or “water it”? (a) water it (b) cover it with soil
  29. 29.🔢 To brush your teeth, what comes right after “brush all your teeth”? (a) rinse your mouth (b) wet the toothbrush (c) put on toothpaste
  30. 30.🔢 To play with a balloon, what comes right after “tie the end”? (a) blow air into it (b) take a balloon (c) play with it
  31. 31.🔢 To brush your teeth, which do we do first: “brush all your teeth” or “put on toothpaste”? (a) put on toothpaste (b) brush all your teeth
  32. 32.🔢 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
  33. 33.🔢 To play with a balloon, which do we do first: “blow air into it” or “tie the end”? (a) blow air into it (b) tie the end
  34. 34.📋 What do we call the steps written in a language a computer understands? (a) a password (b) a painting (c) a poem (d) a program
  35. 35.🔢 To brush your teeth, which is the FIRST step? (a) rinse your mouth (b) put on toothpaste (c) brush all your teeth (d) wet the toothbrush
  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: “dig a small hole” or “water it”? (a) dig a small hole (b) water it
  38. 38.🔢 To play with a balloon, which do we do first: “play with it” or “tie the end”? (a) tie the end (b) play with it
  39. 39.🔢 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
  40. 40.🔢 To wash your hands, which is the FIRST step? (a) rub them with soap (b) rinse off the soap (c) wet your hands (d) dry them with a towel

Answer key

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

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