Remember: A variable is a box with a name. It holds a value, and the value can change while the name stays the same.
Read and answer
Read the story, then answer.
Bo and the star boxTavi tipped three paper stars onto the workbench at the Tinker Club. Bo is a robot, and a robot only remembers what we store. Mina rolled in a cart of boxes that all looked the same. Tavi dropped the stars into one box, and Mina stuck on a label that said stars. Now Bo could ask for the box called stars and find it at once. The name on the label is stars, and the value inside is three. Then Tavi caught another star and dropped it in. The box held four, so the name stayed stars but the value changed. Later Mina made a box of her own and named it stars too, and Bo did not know which box to open. So Mina renamed hers moons.
1
In this picture of Tavi's box, what is the number 3?
🏷️The name of the box🔢The value inside the box🆕A new variable
2
A variable is a box with a name.
TrueFalse
3
The name on the box stays the same, but the can change.
nameflagvalue
4
The box called stars holds 3. Tavi drops in one more star. What does the box hold now?
3stars4
5
Mina's new box holds the coins Tavi earns. Which name tells us what is inside?
🧺stuff🪙coins❔thing
6
A value is what sits inside a box, not its name. Circle every value.
🌟stars🔢7💗lives🔢40🔢12
7
A robot remembers a number even when we never store it in a box.
TrueFalse
Order, fix and stretch
8
Put what happened to the box in order.
Tavi drops three stars into a box
Bo asks for the box called stars
The box holds four
Tavi drops in one more star
Mina sticks on a label that says stars
9
Mina's box and Tavi's box are both labeled stars, so Bo cannot tell them apart. What is the fix?
🌙Give Mina's box its own clear name, like moons🌟Name every box stars🚫Take the labels off both boxes
10
In Tavi's game the box called stars holds 4. Tavi catches a star, and then another. What goes in the empty box?
756
11
Think of a game. Write two variables it could need, each with a clear name.
12
Draw a box with the label coins on it, and a value inside.
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