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Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 337 · 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 wash your hands, what comes right after “wet your hands”? (a) rinse off the soap (b) rub them with soap (c) dry them with a towel
  2. 2.🔢 To brush your teeth, what comes right after “wet the toothbrush”? (a) rinse your mouth (b) put on toothpaste (c) brush all your teeth
  3. 3.🔢 To plant a seed, what comes right after “dig a small hole”? (a) cover it with soil (b) put the seed in (c) water it
  4. 4.🔢 In an algorithm, the steps must be in the right ___. (a) font (b) order (c) colour (d) size
  5. 5.🔢 To wash your hands, which is the FIRST step? (a) dry them with a towel (b) wet your hands (c) rub them with soap (d) rinse off the soap
  6. 6.🔢 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
  7. 7.🐞 What do we call a mistake in a program? (a) a cell (b) a byte (c) a sprite (d) a bug
  8. 8.🔢 To wash your hands, which do we do first: “rinse off the soap” or “dry them with a towel”? (a) dry them with a towel (b) rinse off the soap
  9. 9.🔢 To brush your teeth, which is the LAST step? (a) wet the toothbrush (b) brush all your teeth (c) put on toothpaste (d) rinse your mouth
  10. 10.🔢 To read a storybook, which is the LAST step? (a) read the story (b) pick up the book (c) close the book (d) open the first page
  11. 11.🔢 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
  12. 12.🔢 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
  13. 13.🔢 To wash your hands, which do we do first: “rinse off the soap” or “rub them with soap”? (a) rinse off the soap (b) rub them with soap
  14. 14.🔢 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
  15. 15.🔢 To plant a seed, which is the FIRST step? (a) water it (b) dig a small hole (c) put the seed in (d) cover it with soil
  16. 16.🔢 To brush your teeth, what comes right after “brush all your teeth”? (a) put on toothpaste (b) wet the toothbrush (c) rinse your mouth
  17. 17.🔢 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
  18. 18.🔧 What is finding and fixing mistakes in a program called? (a) scrolling (b) debugging (c) downloading (d) printing
  19. 19.🔢 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
  20. 20.🔢 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
  21. 21.🔢 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
  22. 22.🔢 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
  23. 23.🔢 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
  24. 24.🔢 To read a storybook, what comes right after “read the story”? (a) close the book (b) open the first page (c) pick up the book
  25. 25.🔢 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
  26. 26.🔢 To plant a seed, which is the LAST step? (a) cover it with soil (b) put the seed in (c) water it (d) dig a small hole
  27. 27.🔢 To play with a balloon, which is the FIRST step? (a) tie the end (b) take a balloon (c) play with it (d) blow air into it
  28. 28.🔢 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
  29. 29.📋 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
  30. 30.🔢 To brush your teeth, which do we do first: “wet the toothbrush” or “put on toothpaste”? (a) put on toothpaste (b) wet the toothbrush
  31. 31.🔢 To plant a seed, what comes right after “cover it with soil”? (a) dig a small hole (b) water it (c) put the seed in
  32. 32.🔢 To brush your teeth, which do we do first: “rinse your mouth” or “put on toothpaste”? (a) rinse your mouth (b) put on toothpaste
  33. 33.🔢 To read a storybook, which do we do first: “read the story” or “pick up the book”? (a) pick up the book (b) read the story
  34. 34.🔢 To plant a seed, what comes right after “put the seed in”? (a) cover it with soil (b) dig a small hole (c) water it
  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 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
  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: “tie the end” or “play with it”? (a) tie the end (b) play with it
  39. 39.🔢 To play with a balloon, which do we do first: “tie the end” or “blow air into it”? (a) blow air into it (b) tie the end
  40. 40.🔢 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

Answer key

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

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