📦 Variables: labelled boxes

Unit 1 · Think like a programmer · 9 min

A variable is a labelled box holding a value. score = 0 puts 0 in the box called score. score = score + 10 takes the old value, adds 10 and stores it back. Variables can hold numbers, text (strings) or true/false.

Words in this lesson

• variable — variable
• value — value
• string — string

Project: Make three paper “variable boxes” labelled name, age and city, drop cards in, and play a “change the value” game with a friend.