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Class 5 Computer Worksheet: Algorithms

Computer lesson 25: Algorithms: steps in order · Set 252 · 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.

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  1. 1.🔢 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
  2. 2.🔢 To wash your hands, what comes right after “wet your hands”? (a) rinse off the soap (b) dry them with a towel (c) rub them with soap
  3. 3.🔢 To play with a balloon, which is the FIRST step? (a) tie the end (b) blow air into it (c) play with it (d) take a balloon
  4. 4.🐞 What do we call a mistake in a program? (a) a bug (b) a byte (c) a cell (d) a sprite
  5. 5.🔢 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
  6. 6.🔢 To brush your teeth, what comes right after “wet the toothbrush”? (a) rinse your mouth (b) brush all your teeth (c) put on toothpaste
  7. 7.🔢 To read a storybook, which is the FIRST step? (a) pick up the book (b) close the book (c) read the story (d) open the first page
  8. 8.📝 What do we call a list of steps to solve a problem? (a) a folder (b) an algorithm (c) a pixel (d) a mouse
  9. 9.📋 What do we call the steps written in a language a computer understands? (a) a painting (b) a password (c) a poem (d) a program
  10. 10.🔢 To wash your hands, what comes right after “rinse off the soap”? (a) wet your hands (b) rub them with soap (c) dry them with a towel
  11. 11.🔢 To brush your teeth, which do we do first: “rinse your mouth” or “put on toothpaste”? (a) rinse your mouth (b) put on toothpaste
  12. 12.🔢 To brush your teeth, which is the FIRST step? (a) put on toothpaste (b) brush all your teeth (c) rinse your mouth (d) wet the toothbrush
  13. 13.🔢 To plant a seed, which do we do first: “dig a small hole” or “water it”? (a) dig a small hole (b) water it
  14. 14.🔢 To plant a seed, which is the FIRST step? (a) put the seed in (b) dig a small hole (c) water it (d) cover it with soil
  15. 15.🔢 To wash your hands, which do we do first: “wet your hands” or “rub them with soap”? (a) wet your hands (b) rub them with soap
  16. 16.🔢 To wash your hands, which is the LAST step? (a) wet your hands (b) dry them with a towel (c) rub them with soap (d) rinse off the soap
  17. 17.🔢 To brush your teeth, which is the LAST step? (a) rinse your mouth (b) put on toothpaste (c) wet the toothbrush (d) brush all your teeth
  18. 18.🔢 In an algorithm, the steps must be in the right ___. (a) colour (b) size (c) order (d) font
  19. 19.🔢 To brush your teeth, which do we do first: “wet the toothbrush” or “put on toothpaste”? (a) put on toothpaste (b) wet the toothbrush
  20. 20.🔢 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
  21. 21.🔢 To brush your teeth, which do we do first: “put on toothpaste” or “rinse your mouth”? (a) rinse your mouth (b) put on toothpaste
  22. 22.🔢 To brush your teeth, what comes right after “put on toothpaste”? (a) rinse your mouth (b) wet the toothbrush (c) brush all your teeth
  23. 23.🔢 To read a storybook, which do we do first: “open the first page” or “read the story”? (a) open the first page (b) read the story
  24. 24.🔢 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
  25. 25.🤖 A computer follows the steps of a program ___. (a) the way it likes (b) backwards always (c) only on Sundays (d) exactly as written
  26. 26.🔧 What is finding and fixing mistakes in a program called? (a) debugging (b) printing (c) scrolling (d) downloading
  27. 27.🔢 To plant a seed, which do we do first: “water it” or “cover it with soil”? (a) cover it with soil (b) water it
  28. 28.🔢 To wash your hands, which is the FIRST step? (a) rinse off the soap (b) dry them with a towel (c) rub them with soap (d) wet your hands
  29. 29.🔢 To wash your hands, which do we do first: “rub them with soap” or “wet your hands”? (a) wet your hands (b) rub them with soap
  30. 30.🔢 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
  31. 31.🔢 To read a storybook, which do we do first: “close the book” or “read the story”? (a) read the story (b) close the book
  32. 32.🔢 To read a storybook, which do we do first: “close the book” or “pick up the book”? (a) pick up the book (b) close the book
  33. 33.🔢 To wash your hands, what comes right after “rub them with soap”? (a) dry them with a towel (b) rinse off the soap (c) wet your hands
  34. 34.🔢 To play with a balloon, what comes right after “take a balloon”? (a) blow air into it (b) play with it (c) tie the end
  35. 35.🔢 To play with a balloon, which do we do first: “tie the end” or “play with it”? (a) play with it (b) tie the end
  36. 36.🔢 To play with a balloon, which do we do first: “play with it” or “tie the end”? (a) play with it (b) tie the end
  37. 37.🔢 To read a storybook, which is the LAST step? (a) read the story (b) pick up the book (c) open the first page (d) close the book
  38. 38.🔢 To play with a balloon, which do we do first: “blow air into it” or “take a balloon”? (a) blow air into it (b) take a balloon
  39. 39.🔢 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
  40. 40.🔢 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

Answer key

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

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