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Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 424 · 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, which do we do first: “dry them with a towel” or “rinse off the soap”? (a) dry them with a towel (b) rinse off the soap
  2. 2.🔢 To brush your teeth, which is the LAST step? (a) wet the toothbrush (b) rinse your mouth (c) brush all your teeth (d) put on toothpaste
  3. 3.🔢 To plant a seed, which do we do first: “put the seed in” or “dig a small hole”? (a) dig a small hole (b) put the seed in
  4. 4.🔢 To brush your teeth, which is the FIRST step? (a) rinse your mouth (b) brush all your teeth (c) put on toothpaste (d) wet the toothbrush
  5. 5.🔢 To wash your hands, what comes right after “rub them with soap”? (a) rinse off the soap (b) wet your hands (c) dry them with a towel
  6. 6.🔢 To play with a balloon, what comes right after “tie the end”? (a) blow air into it (b) take a balloon (c) play with it
  7. 7.🐞 What do we call a mistake in a program? (a) a sprite (b) a cell (c) a bug (d) a byte
  8. 8.📝 What do we call a list of steps to solve a problem? (a) a mouse (b) a folder (c) a pixel (d) an algorithm
  9. 9.🔢 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
  10. 10.🔢 To play with a balloon, which is the FIRST step? (a) take a balloon (b) tie the end (c) play with it (d) blow air into it
  11. 11.🔢 To wash your hands, which do we do first: “rinse off the soap” or “dry them with a towel”? (a) rinse off the soap (b) dry them with a towel
  12. 12.🔢 To brush your teeth, what comes right after “put on toothpaste”? (a) brush all your teeth (b) wet the toothbrush (c) rinse your mouth
  13. 13.🔢 To brush your teeth, which do we do first: “wet the toothbrush” or “rinse your mouth”? (a) wet the toothbrush (b) rinse your mouth
  14. 14.🔢 To brush your teeth, which do we do first: “put on toothpaste” or “rinse your mouth”? (a) rinse your mouth (b) put on toothpaste
  15. 15.🔢 To brush your teeth, which do we do first: “brush all your teeth” or “rinse your mouth”? (a) rinse your mouth (b) brush all your teeth
  16. 16.🔢 To plant a seed, which do we do first: “water it” or “put the seed in”? (a) water it (b) put the seed in
  17. 17.🔢 To wash your hands, which is the LAST step? (a) rub them with soap (b) rinse off the soap (c) dry them with a towel (d) wet your hands
  18. 18.🔢 To wash your hands, which do we do first: “dry them with a towel” or “rub them with soap”? (a) dry them with a towel (b) rub them with soap
  19. 19.🔢 To plant a seed, which is the FIRST step? (a) dig a small hole (b) water it (c) put the seed in (d) cover it with soil
  20. 20.🔢 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
  21. 21.🔧 What is finding and fixing mistakes in a program called? (a) downloading (b) scrolling (c) debugging (d) printing
  22. 22.🔢 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
  23. 23.🔢 In an algorithm, the steps must be in the right ___. (a) size (b) colour (c) font (d) order
  24. 24.🔢 To play with a balloon, which do we do first: “blow air into it” or “tie the end”? (a) blow air into it (b) tie the end
  25. 25.🔢 To read a storybook, which is the LAST step? (a) close the book (b) pick up the book (c) read the story (d) open the first page
  26. 26.🔢 To play with a balloon, which is the LAST step? (a) tie the end (b) play with it (c) blow air into it (d) take a balloon
  27. 27.🔢 To play with a balloon, what comes right after “blow air into it”? (a) take a balloon (b) tie the end (c) play with it
  28. 28.🔢 To plant a seed, which is the LAST step? (a) cover it with soil (b) put the seed in (c) dig a small hole (d) water it
  29. 29.🔢 To plant a seed, what comes right after “cover it with soil”? (a) water it (b) dig a small hole (c) put the seed in
  30. 30.🔢 To wash your hands, which do we do first: “rinse off the soap” or “wet your hands”? (a) rinse off the soap (b) wet your hands
  31. 31.🔢 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
  32. 32.🔢 To read a storybook, which do we do first: “read the story” or “close the book”? (a) close the book (b) read the story
  33. 33.🔢 To play with a balloon, which do we do first: “take a balloon” or “blow air into it”? (a) blow air into it (b) take a balloon
  34. 34.🔢 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
  35. 35.🔢 To brush your teeth, what comes right after “wet the toothbrush”? (a) brush all your teeth (b) put on toothpaste (c) rinse your mouth
  36. 36.🔢 To read a storybook, what comes right after “pick up the book”? (a) open the first page (b) close the book (c) read the story
  37. 37.🔢 To plant a seed, which do we do first: “put the seed in” or “cover it with soil”? (a) cover it with soil (b) put the seed in
  38. 38.🔢 To read a storybook, which is the FIRST step? (a) pick up the book (b) read the story (c) close the book (d) open the first page
  39. 39.🔢 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
  40. 40.🔢 To plant a seed, which do we do first: “cover it with soil” or “put the seed in”? (a) put the seed in (b) cover it with soil

Answer key

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

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