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