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Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 438 · 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) dry them with a towel (b) rinse off the soap (c) rub them with soap
  2. 2.🔢 To brush your teeth, which do we do first: “put on toothpaste” or “wet the toothbrush”? (a) put on toothpaste (b) wet the toothbrush
  3. 3.🔢 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
  4. 4.🔢 To wash your hands, which is the LAST step? (a) rub them with soap (b) dry them with a towel (c) wet your hands (d) rinse off the soap
  5. 5.🔢 To play with a balloon, which is the FIRST step? (a) tie the end (b) play with it (c) take a balloon (d) blow air into it
  6. 6.🔢 To brush your teeth, which do we do first: “rinse your mouth” or “wet the toothbrush”? (a) wet the toothbrush (b) rinse your mouth
  7. 7.🔢 To read a storybook, which is the FIRST step? (a) open the first page (b) read the story (c) close the book (d) pick up the book
  8. 8.🔢 To brush your teeth, what comes right after “wet the toothbrush”? (a) brush all your teeth (b) put on toothpaste (c) rinse your mouth
  9. 9.🔢 To brush your teeth, what comes right after “put on toothpaste”? (a) rinse your mouth (b) wet the toothbrush (c) brush all your teeth
  10. 10.🔢 To read a storybook, which is the LAST step? (a) pick up the book (b) open the first page (c) read the story (d) close the book
  11. 11.🔢 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
  12. 12.🔢 To brush your teeth, which is the LAST step? (a) wet the toothbrush (b) put on toothpaste (c) rinse your mouth (d) brush all your teeth
  13. 13.🔢 To plant a seed, what comes right after “put the seed in”? (a) dig a small hole (b) cover it with soil (c) water it
  14. 14.🔢 To play with a balloon, what comes right after “tie the end”? (a) take a balloon (b) blow air into it (c) play with it
  15. 15.🔧 What is finding and fixing mistakes in a program called? (a) scrolling (b) printing (c) downloading (d) debugging
  16. 16.🔢 To plant a seed, what comes right after “dig a small hole”? (a) cover it with soil (b) water it (c) put the seed in
  17. 17.🔢 To read a storybook, what comes right after “read the story”? (a) open the first page (b) pick up the book (c) close the book
  18. 18.🔢 To plant a seed, which is the LAST step? (a) cover it with soil (b) water it (c) dig a small hole (d) put the seed in
  19. 19.🔢 To plant a seed, which do we do first: “water it” or “dig a small hole”? (a) dig a small hole (b) water it
  20. 20.🔢 To play with a balloon, which is the LAST step? (a) blow air into it (b) take a balloon (c) tie the end (d) play with it
  21. 21.🔢 To brush your teeth, which do we do first: “wet the toothbrush” or “put on toothpaste”? (a) wet the toothbrush (b) put on toothpaste
  22. 22.🔢 To plant a seed, which do we do first: “dig a small hole” or “cover it with soil”? (a) cover it with soil (b) dig a small hole
  23. 23.🔢 To wash your hands, what comes right after “rinse off the soap”? (a) rub them with soap (b) wet your hands (c) dry them with a towel
  24. 24.📋 What do we call the steps written in a language a computer understands? (a) a program (b) a painting (c) a poem (d) a password
  25. 25.🔢 In an algorithm, the steps must be in the right ___. (a) colour (b) order (c) size (d) font
  26. 26.🔢 To brush your teeth, which do we do first: “put on toothpaste” or “brush all your teeth”? (a) put on toothpaste (b) brush all your teeth
  27. 27.🔢 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
  28. 28.🔢 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
  29. 29.🔢 To brush your teeth, what comes right after “brush all your teeth”? (a) put on toothpaste (b) rinse your mouth (c) wet the toothbrush
  30. 30.🐞 What do we call a mistake in a program? (a) a byte (b) a cell (c) a sprite (d) a bug
  31. 31.🔢 To play with a balloon, which do we do first: “blow air into it” or “tie the end”? (a) tie the end (b) blow air into it
  32. 32.🔢 To plant a seed, which is the FIRST step? (a) cover it with soil (b) dig a small hole (c) water it (d) put the seed in
  33. 33.🔢 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
  34. 34.🔢 To read a storybook, which do we do first: “read the story” or “open the first page”? (a) read the story (b) open the first page
  35. 35.🔢 To play with a balloon, which do we do first: “take a balloon” or “play with it”? (a) play with it (b) take a balloon
  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 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
  38. 38.🔢 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
  39. 39.🔢 To wash your hands, which is the FIRST step? (a) rinse off the soap (b) dry them with a towel (c) wet your hands (d) rub them with soap
  40. 40.🔢 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

Answer key

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

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