Sport management is an industrious field concerning the business aspects of sports and recreation. Some examples of sport managers include the front office system in professional sports, college sports managers, recreational sport managers, sports marketing, event management, facility management, sports economics, sport finance, and sports information. Bachelor's and master's degrees in sport management are offered by many colleges and universities. A number of classes outside of sport management may be relevant to the field, including; classes in management, marketing, business administration, and accounting. Internships may also open opportunities within the field. In America, jobs in sport management include working for professional programs like the NFL, NBA, MLB, NHL, and other professional or non-professional sport leagues in terms of marketing, health, and promotions. Curriculum - one of the four essential components of physical education - is the written, clearly articulated plan for how standards and education outcomes will be attained. School districts and schools should have a written physical education curriculum for grades K-12 that is sequential and comprehensive. It should be based on national and/or state standards and grade-level outcomes for physical education, and should include learning objectives for students as well as units and lessons for teachers to implement. The physical education curriculum should mirror other school district and school curricula in its design and schedule for periodic review/update. Overall, the physical education curriculum serves the purpose of standardizing the curriculum in a school district across schools and ensuring equitable education for all students. It also results in improved teacher quality and increased consistency in instruction.