π Topic Summary
Variables are like labeled boxes in computer science. They help us store and remember information, like numbers, words, or even pictures! In kindergarten, we can think of variables as names we give to different things in our computer programs, making it easier to use them later on. Just like you label your toy boxes to know what's inside, variables help computers keep track of information.
For example, you could have a variable called "number_of_apples" and store the number 5 in it. Then, whenever you want to use the number of apples, you just say "number_of_apples" and the computer knows you mean 5!
π€ Part A: Vocabulary
Match the word with its definition:
| Word |
Definition |
| 1. Variable |
A. A set of instructions for a computer |
| 2. Value |
B. A name that holds information |
| 3. Program |
C. Information stored in a variable |
| 4. Data |
D. A symbol that represents a value or operation |
| 5. Operator |
E. Facts and statistics collected together for reference or analysis |
Answers:
- π 1 - B
- π‘ 2 - C
- π» 3 - A
- π 4 - E
- β 5 - D
βοΈ Part B: Fill in the Blanks
Fill in the blanks using the words: variable, information, name.
A _________ is like a container that holds __________. We give each container a __________ so we know what's inside.
Answer:
A variable is like a container that holds information. We give each container a name so we know what's inside.
π€ Part C: Critical Thinking
Why is it helpful to use variables in computer programs? Can you think of an example?
Answer:
It's helpful because it allows us to store and reuse information easily. For example, if we want to draw a square, we can store the length of the side in a variable called "side_length" and use that variable to draw all four sides of the square.
