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Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 172 · 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 plant a seed, what comes right after “cover it with soil”? (a) put the seed in (b) dig a small hole (c) water it
  2. 2.🔢 To plant a seed, which do we do first: “put the seed in” or “cover it with soil”? (a) put the seed in (b) cover it with soil
  3. 3.🔢 To plant a seed, which do we do first: “put the seed in” or “dig a small hole”? (a) put the seed in (b) dig a small hole
  4. 4.🔢 To wash your hands, which do we do first: “rinse off the soap” or “rub them with soap”? (a) rub them with soap (b) rinse off the soap
  5. 5.🗺️ Which of these is an algorithm in everyday life? (a) a recipe (b) a rainbow (c) a cloud (d) a pebble
  6. 6.🔢 To play with a balloon, which do we do first: “tie the end” or “take a balloon”? (a) tie the end (b) take a balloon
  7. 7.🔢 To plant a seed, which do we do first: “cover it with soil” or “water it”? (a) cover it with soil (b) water it
  8. 8.🔢 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
  9. 9.🤖 A computer follows the steps of a program ___. (a) the way it likes (b) exactly as written (c) only on Sundays (d) backwards always
  10. 10.🔢 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
  11. 11.🔢 To wash your hands, which is the LAST step? (a) dry them with a towel (b) rinse off the soap (c) wet your hands (d) rub them with soap
  12. 12.🔢 To play with a balloon, which is the FIRST step? (a) take a balloon (b) blow air into it (c) play with it (d) tie the end
  13. 13.🔢 To brush your teeth, what comes right after “put on toothpaste”? (a) wet the toothbrush (b) brush all your teeth (c) rinse your mouth
  14. 14.🔢 To read a storybook, which is the LAST step? (a) close the book (b) pick up the book (c) open the first page (d) read the story
  15. 15.🔧 What is finding and fixing mistakes in a program called? (a) downloading (b) scrolling (c) debugging (d) printing
  16. 16.🔢 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
  17. 17.🔢 To wash your hands, what comes right after “rub them with soap”? (a) dry them with a towel (b) rinse off the soap (c) wet your hands
  18. 18.🔢 To brush your teeth, which do we do first: “wet the toothbrush” or “put on toothpaste”? (a) put on toothpaste (b) wet the toothbrush
  19. 19.🔢 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
  20. 20.🔢 To plant a seed, which do we do first: “dig a small hole” or “put the seed in”? (a) dig a small hole (b) put the seed in
  21. 21.🐞 What do we call a mistake in a program? (a) a sprite (b) a cell (c) a bug (d) a byte
  22. 22.📋 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
  23. 23.🔢 To plant a seed, which is the LAST step? (a) dig a small hole (b) cover it with soil (c) water it (d) put the seed in
  24. 24.🔢 In an algorithm, the steps must be in the right ___. (a) order (b) size (c) font (d) colour
  25. 25.🔢 To wash your hands, what comes right after “rinse off the soap”? (a) dry them with a towel (b) wet your hands (c) rub them with soap
  26. 26.🔢 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
  27. 27.🔢 To brush your teeth, what comes right after “wet the toothbrush”? (a) brush all your teeth (b) put on toothpaste (c) rinse your mouth
  28. 28.🔢 To read a storybook, which is the FIRST step? (a) close the book (b) pick up the book (c) open the first page (d) read the story
  29. 29.🔢 To play with a balloon, what comes right after “take a balloon”? (a) play with it (b) tie the end (c) blow air into it
  30. 30.🔢 To brush your teeth, which do we do first: “put on toothpaste” or “wet the toothbrush”? (a) wet the toothbrush (b) put on toothpaste
  31. 31.🔢 To play with a balloon, which do we do first: “take a balloon” or “blow air into it”? (a) take a balloon (b) blow air into it
  32. 32.🔢 To brush your teeth, which is the FIRST step? (a) brush all your teeth (b) put on toothpaste (c) rinse your mouth (d) wet the toothbrush
  33. 33.🔢 To plant a seed, which do we do first: “dig a small hole” or “water it”? (a) water it (b) dig a small hole
  34. 34.🔢 To wash your hands, which is the FIRST step? (a) dry them with a towel (b) rinse off the soap (c) rub them with soap (d) wet your hands
  35. 35.🔢 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
  36. 36.🔢 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
  37. 37.🔢 To brush your teeth, what comes right after “brush all your teeth”? (a) wet the toothbrush (b) rinse your mouth (c) put on toothpaste
  38. 38.🔢 To read a storybook, which do we do first: “pick up the book” or “read the story”? (a) pick up the book (b) read the story
  39. 39.🔢 To read a storybook, what comes right after “open the first page”? (a) pick up the book (b) close the book (c) read the story
  40. 40.🔢 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

Answer key

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

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