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Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 123 · 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 play with a balloon, which is the FIRST step? (a) play with it (b) blow air into it (c) tie the end (d) take a balloon
  2. 2.🔢 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
  3. 3.📋 What do we call the steps written in a language a computer understands? (a) a program (b) a password (c) a painting (d) a poem
  4. 4.🔢 To wash your hands, which is the FIRST step? (a) wet your hands (b) dry them with a towel (c) rinse off the soap (d) rub them with soap
  5. 5.🔢 To wash your hands, which is the LAST step? (a) rub them with soap (b) rinse off the soap (c) wet your hands (d) dry them with a towel
  6. 6.🔢 To brush your teeth, which is the LAST step? (a) put on toothpaste (b) brush all your teeth (c) rinse your mouth (d) wet the toothbrush
  7. 7.🔢 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
  8. 8.🔢 To play with a balloon, what comes right after “tie the end”? (a) play with it (b) take a balloon (c) blow air into it
  9. 9.🔢 To brush your teeth, which do we do first: “brush all your teeth” or “wet the toothbrush”? (a) wet the toothbrush (b) brush all your teeth
  10. 10.🔢 To play with a balloon, what comes right after “take a balloon”? (a) blow air into it (b) tie the end (c) play with it
  11. 11.🔢 To read a storybook, which is the FIRST step? (a) close the book (b) pick up the book (c) read the story (d) open the first page
  12. 12.🔢 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
  13. 13.🔢 To plant a seed, which is the FIRST step? (a) cover it with soil (b) water it (c) dig a small hole (d) put the seed in
  14. 14.🗺️ Which of these is an algorithm in everyday life? (a) a cloud (b) a recipe (c) a rainbow (d) a pebble
  15. 15.🔢 To wash your hands, what comes right after “rub them with soap”? (a) rinse off the soap (b) dry them with a towel (c) wet your hands
  16. 16.🔢 To read a storybook, which is the LAST step? (a) close the book (b) open the first page (c) pick up the book (d) read the story
  17. 17.🔢 In an algorithm, the steps must be in the right ___. (a) size (b) colour (c) font (d) order
  18. 18.📝 What do we call a list of steps to solve a problem? (a) a mouse (b) an algorithm (c) a pixel (d) a folder
  19. 19.🐞 What do we call a mistake in a program? (a) a sprite (b) a byte (c) a cell (d) a bug
  20. 20.🔢 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
  21. 21.🔢 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
  22. 22.🔢 To read a storybook, which do we do first: “pick up the book” or “close the book”? (a) pick up the book (b) close the book
  23. 23.🔢 To read a storybook, which do we do first: “read the story” or “open the first page”? (a) open the first page (b) read the story
  24. 24.🤖 A computer follows the steps of a program ___. (a) backwards always (b) only on Sundays (c) exactly as written (d) the way it likes
  25. 25.🔢 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
  26. 26.🔢 To brush your teeth, which do we do first: “put on toothpaste” or “wet the toothbrush”? (a) wet the toothbrush (b) put on toothpaste
  27. 27.🔢 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
  28. 28.🔧 What is finding and fixing mistakes in a program called? (a) printing (b) debugging (c) scrolling (d) downloading
  29. 29.🔢 To play with a balloon, which is the LAST step? (a) take a balloon (b) tie the end (c) blow air into it (d) play with it
  30. 30.🔢 To wash your hands, which do we do first: “rinse off the soap” or “wet your hands”? (a) wet your hands (b) rinse off the soap
  31. 31.🔢 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
  32. 32.🔢 To brush your teeth, what comes right after “brush all your teeth”? (a) rinse your mouth (b) put on toothpaste (c) wet the toothbrush
  33. 33.🔢 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
  34. 34.🔢 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
  35. 35.🔢 To brush your teeth, what comes right after “put on toothpaste”? (a) wet the toothbrush (b) brush all your teeth (c) rinse your mouth
  36. 36.🔢 To plant a seed, which do we do first: “cover it with soil” or “dig a small hole”? (a) dig a small hole (b) cover it with soil
  37. 37.🔢 To read a storybook, which do we do first: “close the book” or “open the first page”? (a) open the first page (b) close the book
  38. 38.🔢 To plant a seed, which is the LAST step? (a) cover it with soil (b) dig a small hole (c) water it (d) put the seed in
  39. 39.🔢 To brush your teeth, what comes right after “wet the toothbrush”? (a) rinse your mouth (b) put on toothpaste (c) brush all your teeth
  40. 40.🔢 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

Answer key

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

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