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Class 5 Computer Worksheet: Algorithms

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

Answer key

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

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