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Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 391 · 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.

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

Answer key

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

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