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Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 510 · 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 do we do first: “brush all your teeth” or “wet the toothbrush”? (a) brush all your teeth (b) wet the toothbrush
  2. 2.🔢 To read a storybook, which is the LAST step? (a) open the first page (b) read the story (c) close the book (d) pick up the book
  3. 3.🔢 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
  4. 4.🔢 To plant a seed, which do we do first: “dig a small hole” or “water it”? (a) dig a small hole (b) water it
  5. 5.🔢 To brush your teeth, which do we do first: “wet the toothbrush” or “brush all your teeth”? (a) wet the toothbrush (b) brush all your teeth
  6. 6.🔢 To wash your hands, which is the FIRST step? (a) rub them with soap (b) wet your hands (c) rinse off the soap (d) dry them with a towel
  7. 7.🔢 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
  8. 8.🔢 To play with a balloon, which do we do first: “tie the end” or “take a balloon”? (a) take a balloon (b) tie the end
  9. 9.🔢 To brush your teeth, what comes right after “brush all your teeth”? (a) put on toothpaste (b) wet the toothbrush (c) rinse your mouth
  10. 10.🔢 To brush your teeth, what comes right after “wet the toothbrush”? (a) put on toothpaste (b) brush all your teeth (c) rinse your mouth
  11. 11.🔢 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
  12. 12.🔢 To brush your teeth, what comes right after “put on toothpaste”? (a) brush all your teeth (b) rinse your mouth (c) wet the toothbrush
  13. 13.🔢 To play with a balloon, what comes right after “take a balloon”? (a) tie the end (b) play with it (c) blow air into it
  14. 14.🔢 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
  15. 15.🔢 To read a storybook, which is the FIRST step? (a) open the first page (b) pick up the book (c) read the story (d) close the book
  16. 16.🔢 To plant a seed, which do we do first: “put the seed in” or “cover it with soil”? (a) put the seed in (b) cover it with soil
  17. 17.🔢 To read a storybook, what comes right after “open the first page”? (a) close the book (b) pick up the book (c) read the story
  18. 18.🔢 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
  19. 19.🔢 To plant a seed, which do we do first: “put the seed in” or “water it”? (a) water it (b) put the seed in
  20. 20.🔢 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
  21. 21.🔢 To brush your teeth, which is the LAST step? (a) brush all your teeth (b) rinse your mouth (c) wet the toothbrush (d) put on toothpaste
  22. 22.📋 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
  23. 23.🔢 To brush your teeth, which is the FIRST step? (a) wet the toothbrush (b) brush all your teeth (c) put on toothpaste (d) rinse your mouth
  24. 24.🔢 To brush your teeth, which do we do first: “brush all your teeth” or “put on toothpaste”? (a) brush all your teeth (b) put on toothpaste
  25. 25.🤖 A computer follows the steps of a program ___. (a) the way it likes (b) backwards always (c) exactly as written (d) only on Sundays
  26. 26.🔢 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
  27. 27.🔢 In an algorithm, the steps must be in the right ___. (a) size (b) font (c) order (d) colour
  28. 28.🔢 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
  29. 29.🔢 To read a storybook, which do we do first: “open the first page” or “read the story”? (a) read the story (b) open the first page
  30. 30.🔢 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
  31. 31.🔢 To play with a balloon, which do we do first: “play with it” or “tie the end”? (a) tie the end (b) play with it
  32. 32.🔢 To play with a balloon, which is the LAST step? (a) take a balloon (b) play with it (c) blow air into it (d) tie the end
  33. 33.🔢 To plant a seed, what comes right after “dig a small hole”? (a) put the seed in (b) water it (c) cover it with soil
  34. 34.🔢 To wash your hands, which do we do first: “rub them with soap” or “rinse off the soap”? (a) rub them with soap (b) rinse off the soap
  35. 35.🔢 To plant a seed, what comes right after “cover it with soil”? (a) dig a small hole (b) put the seed in (c) water it
  36. 36.🔢 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
  37. 37.🔢 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
  38. 38.🔢 To play with a balloon, which is the FIRST step? (a) blow air into it (b) take a balloon (c) tie the end (d) play with it
  39. 39.🔢 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
  40. 40.🔢 To read a storybook, which do we do first: “read the story” or “pick up the book”? (a) read the story (b) pick up the book

Answer key

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

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