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