School classes are organized periods of instruction where students learn various subjects. These subjects can include math, science, history, and language arts. Classes are typically led by a teacher who guides students through lessons, discussions, and activities to help them understand the material. Students usually attend multiple classes each day, often in different classrooms. Each class has a specific curriculum designed to meet educational standards. Assessments, such as tests and projects, are used to evaluate student progress and understanding of the topics covered in class.