Computer science · Grades K–2
Put the steps in order
Study guide for Kindergarten to Grade 2: 2 worked examples and 2 practice questions. An algorithm is a list of steps in the right order. Ask: what has to happen before this step can work?
Rule and key idea
An algorithm is a list of steps in the right order. Ask: what has to happen before this step can work?
algorithm = steps in the right order
Worked examples
To wash your hands, which step comes first: “turn on the tap” or “rub your hands with soap”?
The steps in order: turn on the tap → rub your hands with soap → rinse your hands → dry your hands.
turn on the tap
To plant a seed, which step comes first: “dig a small hole” or “cover the seed with soil”?
The steps in order: dig a small hole → put the seed in the hole → cover the seed with soil → water the soil.
dig a small hole
Try two questions
To wash your hands, which step comes first: “turn on the tap” or “dry your hands”?
- turn on the tap
- dry your hands
To read a book, which step comes first: “open the book” or “turn to the next page”?
- open the book
- turn to the next page
Answers and reasoning
Answers and marking notes
- turn on the tap
The steps in order: turn on the tap → rub your hands with soap → rinse your hands → dry your hands.
- open the book
The steps in order: open the book → read the first page → turn to the next page → close the book.
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