what about High School courses?

This is directly from the school code. It was chapter 5 as referred to in Act 169.
4.23. High school education.
(a) Instruction in the high school program must focus on the development of abilities needed to succeed in work and advanced education through planned instruction.
(b) Curriculum and instruction in the high school must be standards-based and provide all students opportunities to develop the skills of analysis, synthesis, evaluation and problem-solving and information literacy.
(c) Planned instruction aligned with academic standards in the following areas shall be provided to every student in the high school program. Planned instruction may be provided as a separate course or as an instructional unit within a course or other interdisciplinary instructional activity:
(1) Language arts, integrating reading, writing, listening, speaking, literature and grammar.
(2) Mathematics, including problem-solving, mathematical reasoning, algebra, geometry and concepts of calculus.
(3) Science and technology, including participation in hands-on experiments and at least one laboratory science chosen from life sciences, earth and space sciences, chemical sciences, physical sciences and agricultural sciences.
(4) Social studies (civics and government, economics, geography and history, including the history and cultures of the United States, the Commonwealth and the world).
(5) Environment and ecology, including scientific, social, political and economic aspects of ecology.
(6) The arts, including art, music, dance, theatre and humanities.
(7) Use of applications of microcomputers and software, including word processing, database, spreadsheets and telecommunications; and information skills, including access to traditional and electronic information sources, computer use and research.
(8) Health, safety and physical education, including instruction in concepts and skills which affect personal, family and community health and safety, nutrition, physical fitness, movement concepts, motor skill development, safety in physical activity settings, and the prevention of alcohol, chemical and tobacco abuse.
(9) Family and consumer science, including principles of consumer behavior and basic knowledge of child health, child care and early literacy skill development.
(d) The following planned instruction shall be made available to every student in the high school program:
(1) Vocational-technical education under § § 4.3 and 4.31—4.35 (relating to definitions; and vocational-technical education).
(2) Business education, including courses to assist students in developing business and information technology skills.
(3) World languages under § 4.25 (relating to languages).
(4) Technology education, incorporating technological problem-solving and the impacts of technology on individuals and society.
(e) College-level advanced placement courses may be offered as planned instruction in the high school curriculum.
(f) This section does not preclude the teaching of other planned instruction designed to achieve a school district’s, including a charter school’s, academic standards.
(g) School districts, including a charter school, shall determine the most appropriate way to operate their high school programs to achieve the purposes under subsection (a) and the academic standards in their strategic plans under § 4.13 (relating to strategic plans).