Overview

Students learn to create and assign values to variables and are navigated through common misconceptions.

Vocab

• Data Type - All values in a programming language have a "type" - such as a Number, Boolean, or String - that dictates how the computer will interpret it. For example 7+5 is interpreted differently from "7"+"5"
• Expression - Any valid unit of code that resolves to a value.
• Variable - A label for a piece of information used in a program.

New Code

• write(text)
• value1 + value2;
• num1 - num2;
• num1 * num2;
• num1 / num2;
• randomNumber
• var x = __;
• x = __;
• var x = promptNum("Enter a value");
• var x = "__";

Resources

• Tutorial - Introduction to Variables Part 1 - Video (download)

• Tutorial - Introduction to Variables Part 2 - Video (download)