**Definition:**
In computer programming, a class is a blueprint for creating objects, defining their properties and behaviors. Methods are functions defined within a class that describe the actions an object can perform.

**Key ideas:**
- A class encapsulates data and functions that operate on that data.
- Methods allow objects to interact and perform tasks.
- Classes promote code reusability and organization.
- Objects are instances of classes, each with their own unique data.

**Why this topic matters in this category:**
Understanding classes and methods is essential for effective programming and software development, as they form the foundation of object-oriented programming.