A class is a group of students who come together to learn about a specific subject or skill. Classes can take place in various settings, such as schools, colleges, or online platforms. They are typically led by a teacher or instructor who guides the students through lessons and activities. Classes can vary in size, duration, and format. For example, a math class may focus on numbers and problem-solving, while a science class might explore experiments and theories. Students often participate in discussions, complete assignments, and take tests to assess their understanding of the material.