Curricula refer to the structured set of courses, lessons, and educational content that schools and educational institutions use to guide teaching and learning. They outline what students are expected to learn, the skills they should develop, and the assessments used to measure their progress. Curricula can vary widely between different educational systems and can be tailored to specific subjects, such as mathematics, science, or literature. In addition to academic subjects, curricula may also include extracurricular activities, such as sports and arts, which contribute to a well-rounded education. They are often designed to meet certain standards set by educational authorities, ensuring that students receive a comprehensive and relevant education that prepares them for future challenges.